Abstract

An improved composite bearing member having at least two distinct surfaces. A first surface having a high CLTE and an opposed dynamic layer of a bearing material having a lower CLTE than the first high CLTE layer. The low CLTE dynamic layer is harder than the static layer to provide a bearing effect. The composite may include a strength layer including carbon fibers having a low CLTE between the high CLTE layer and the lower CLTE harder layer is provided.

IPC Classes  ?

• F16C 33/04 - BrassesBushesLinings
• F16C 33/20 - Sliding surface consisting mainly of plastics

Abstract

An improved composite bearing member having at least two distinct surfaces. A first surface having a high CLTE and an opposed dynamic layer of a bearing material having a lower CLTE than the first high CLTE layer. The low CLTE dynamic layer is harder than the static layer to provide a bearing effect. The composite may include a strength layer including carbon fibers having a low CLTE between the high CLTE layer and the lower CLTE harder layer is provided.

IPC Classes  ?

• F16C 17/22 - Sliding-contact bearings for exclusively rotary movement characterised by features not related to the direction of the load with arrangements compensating for thermal expansion
• F16C 33/74 - Sealings of sliding-contact bearings
• B33Y 80/00 - Products made by additive manufacturing
• F16C 19/00 - Bearings with rolling contact, for exclusively rotary movement

Abstract

An improved bearing or bushing body extraction from a stuffing box using jack screws is provided. The bearing or bushing seal body includes at least one jack screw on each half of a split body. The jack screw passes axially through the sidewall of the body to the inner flange of the stuffing box and turning the jack screw against the inner flange to lift the body from the stuffing box. A single inner threaded or double threaded insert with a reverse outer thread and standard inner thread is inserted into the bottom wall of the body so that the body may be installed flush against the inner flange. By turning the jack screw through the insert and against the flange, the seal body is pushed out rather than pulled.

IPC Classes  ?

• F16J 15/18 - Sealings between relatively-moving surfaces with stuffing-boxes for elastic or plastic packings

Abstract

A fluid sealing system for a rotary mechanical device including a pillar lantern ring having a bottom and a top end cap with pillars or columns connecting the end caps is formed by additive manufacturing. The bottom annular end cap has an outside face and an opposed inside face defining a height therebetween and the upper annular end cap has an inside face and an opposed outside face defining a height therebetween with a plurality of integrally formed substantially cylindrical axial columns connecting the two opposed inside faces of the two end caps.

IPC Classes  ?

• F16J 15/18 - Sealings between relatively-moving surfaces with stuffing-boxes for elastic or plastic packings

Abstract

An improved remotely adjustable gland follower for a stuffing box of a rotary or reciprocal mechanical device is provided. In one embodiment of the invention, the gland follower includes a body portion with at least one cylinder having a fluid inlet at the power end and a piston. The piston has a hydraulic end positioned within the cylinder and an opposed packing face surrounding the shaft and configured to extend into the seal cavity. The piston engages and compresses the packing in the seal cavity when pressurized by fluid introduced into the fluid inlet at the power end of the cylinder. At least one o-ring groove may be formed in the hydraulic end of the piston to receive at least one o-ring for improving the hydraulic seal in the cylinder.

IPC Classes  ?

• F16J 15/18 - Sealings between relatively-moving surfaces with stuffing-boxes for elastic or plastic packings

Abstract

An improved remotely adjustable gland follower for a stuffing box of a rotary or reciprocal mechanical device is provided. In one embodiment of the invention, the gland follower includes a body portion with at least one cylinder having a fluid inlet at the power end and a piston. The piston has a hydraulic end positioned within the cylinder and an opposed packing face surrounding the shaft and configured to extend into the seal cavity. The piston engages and compresses the packing in the seal cavity when pressurized by fluid introduced into the fluid inlet at the power end of the cylinder. At least one o-ring groove may be formed in the hydraulic end of the piston to receive at least one o-ring for improving the hydraulic seal in the cylinder.

IPC Classes  ?

• F16J 15/18 - Sealings between relatively-moving surfaces with stuffing-boxes for elastic or plastic packings

Abstract

An improved remotely adjustable gland follower for a stuffing box of a rotary or reciprocal mechanical device is provided. In one embodiment of the invention, the gland follower includes a body portion with at least one cylinder having a fluid inlet at the power end and a piston. The piston has a hydraulic end positioned within the cylinder and an opposed packing face surrounding the shaft and configured to extend into the seal cavity. The piston engages and compresses the packing in the seal cavity when pressurized by fluid introduced into the fluid inlet at the power end of the cylinder. At least one o-ring groove may be formed in the hydraulic end of the piston to receive at least one o-ring for improving the hydraulic seal in the cylinder.

IPC Classes  ?

• F16J 15/18 - Sealings between relatively-moving surfaces with stuffing-boxes for elastic or plastic packings
• F04D 29/10 - Shaft sealings

Abstract

A fluid sealing system for a rotary mechanical device including a pillar lantern ring having a bottom and a top end cap with pillars or columns connecting the end caps is formed by additive manufacturing. The bottom annular end cap has an outside face and an opposed inside face defining a height therebetween and the upper annular end cap has an inside face and an opposed outside face defining a height therebetween with a plurality of integrally formed substantially cylindrical axial columns connecting the two opposed inside faces of the two end caps.

IPC Classes  ?

• F16J 15/18 - Sealings between relatively-moving surfaces with stuffing-boxes for elastic or plastic packings

Abstract

An improved bearing or bushing body extraction from a stuffing box using jack screws is provided. The bearing or bushing seal body includes at least one jack screw on each half of a split body. The jack screw passes axially through the sidewall of the body to the inner flange of the stuffing box and turning the jack screw against the inner flange to lift the body from the stuffing box. A single inner threaded or double threaded insert with a reverse outer thread and standard inner thread is inserted into the bottom wall of the body so that the body may be installed flush against the inner flange. By turning the jack screw through the insert and against the flange, the seal body is pushed out rather than pulled.

IPC Classes  ?

• F04D 29/12 - Shaft sealings using sealing-rings
• F16J 15/26 - Sealings between relatively-moving surfaces with stuffing-boxes for rigid sealing rings

Abstract

An improved bearing or bushing body extraction from a stuffing box using jack screws is provided. The bearing or bushing seal body includes at least one jack screw on each half of a split body. The jack screw passes axially through the sidewall of the body to the inner flange of the stuffing box and turning the jack screw against the inner flange to lift the body from the stuffing box. A single inner threaded or double threaded insert with a reverse outer thread and standard inner thread is inserted into the bottom wall of the body so that the body may be installed flush against the inner flange. By turning the jack screw through the insert and against the flange, the seal body is pushed out rather than pulled.

IPC Classes  ?

• F16J 15/26 - Sealings between relatively-moving surfaces with stuffing-boxes for rigid sealing rings
• F04D 29/12 - Shaft sealings using sealing-rings

Abstract

An improved bearing or bushing body extraction from a stuffing box using jack screws is provided. The bearing or bushing seal body includes at least one jack screw on each half of a split body. The jack screw passes axially through the sidewall of the body to the inner flange of the stuffing box and turning the jack screw against the inner flange to lift the body from the stuffing box. A single inner threaded or double threaded insert with a reverse outer thread and standard inner thread is inserted into the bottom wall of the body so that the body may be installed flush against the inner flange. By turning the jack screw through the insert and against the flange, the seal body is pushed out rather than pulled.

IPC Classes  ?

• F16J 15/18 - Sealings between relatively-moving surfaces with stuffing-boxes for elastic or plastic packings
• B66F 3/08 - Devices, e.g. jacks, adapted for uninterrupted lifting of loads screw-operated

Abstract

A fluid sealing system for a rotary mechanical device includes a pillar lantern ring having two end caps with pillars or columns connecting the end caps. A bushing or bearing seal element is positioned at the bottom of the seal cavity and the pillar lantern ring is positioned adjacent the element at the flush port with compressible packing rings between the lantern ring and the gland follower. The pillars or columns are axial supports to prevent the ring from being crushed when the gland follower is tightened down. The pillars allow for a larger reservoir volume of flush in case of temporary flush loss compared to a conventional lantern ring with holes between the outer and inner groove surfaces of the lantern ring. The outer surface of the lantern ring is closely dimensioned to the inner bore of the stuffing box. In one embodiment the lantern ring is a suspended lantern ring with an inner diameter greater than the shaft to avoid any and all contact with the shaft in order to extend its working life.

IPC Classes  ?

• F16J 15/18 - Sealings between relatively-moving surfaces with stuffing-boxes for elastic or plastic packings

Abstract

A fluid sealing system for a rotary mechanical device includes a pillar lantern ring having two end caps with pillars or columns connecting the end caps. A bushing or bearing seal element is positioned at the bottom of the seal cavity and the pillar lantern ring is positioned adjacent the element at the flush port with compressible packing rings between the lantern ring and the gland follower. The pillars or columns are axial supports to prevent the ring from being crushed when the gland follower is tightened down. The pillars allow for a larger reservoir volume of flush in case of temporary flush loss compared to a conventional lantern ring with holes between the outer and inner groove surfaces of the lantern ring. The outer surface of the lantern ring is closely dimensioned to the inner bore of the stuffing box. In one embodiment the lantern ring is a suspended lantern ring with an inner diameter greater than the shaft to avoid any and all contact with the shaft in order to extend its working life.

IPC Classes  ?

• F04D 29/12 - Shaft sealings using sealing-rings
• F16J 15/18 - Sealings between relatively-moving surfaces with stuffing-boxes for elastic or plastic packings
• F16J 15/26 - Sealings between relatively-moving surfaces with stuffing-boxes for rigid sealing rings

Abstract

A bearing with an integral diverted lantern ring for installation into the seal cavity of a rotary mechanical device to provide a bearing surface and allow for flush fluid to engage the shaft closer to the motor end is provided. The bearing eliminates whip in a rotating shaft and is split to allow easy installation over an installed shaft. The bearing is substantially cylindrical with an inner bore closely approximating the outer diameter of the shaft. The diverted lantern ring includes an outer groove at the impeller end on the outer surface at a flush port and a groove on the inner surface at a location closer to the motor end. Flush fluid channels are provided between the outer groove and inner groove of the bearing. The purpose is to redirect the external flush from the impeller end on the OD to the motor end on the ID, thus repositioning the flush deposit on the sleeve, under the bearing. This allows the throttling characteristic of the close clearance bearing surface to increase.

IPC Classes  ?

• F16J 15/18 - Sealings between relatively-moving surfaces with stuffing-boxes for elastic or plastic packings
• F16C 33/74 - Sealings of sliding-contact bearings
• F04D 29/10 - Shaft sealings
• F16J 15/40 - Sealings between relatively-moving surfaces by means of fluid
• F04D 1/00 - Radial-flow pumps, e.g. centrifugal pumpsHelico-centrifugal pumps
• F04D 29/046 - Bearings
• F04D 29/049 - Roller bearings

Abstract

A bearing (31) with an integral diverted lantern ring for installation into the seal cavity (22) of a rotary mechanical device to provide a bearing surface and allow for flush fluid to engage the shaft (14) closer to the motor end is provided. The bearing eliminates whip in a rotating shaft and is split to allow easy installation over an installed shaft. The bearing is substantially cylindrical with an inner bore (34) closely approximating the outer diameter of the shaft. The diverted lantern ring includes an outer groove (36) at the impeller end on the outer surface (33) at a flush port (25) and a groove (37) on the inner surface at a location closer to the motor end. Flush fluid channels (46) are provided between the outer groove and inner groove of the bearing. The purpose is to redirect the external flush from the impeller end on the OD to the motor end on the ID, thus repositioning the flush deposit on the sleeve, under the bearing. This allows the throttling characteristic of the close clearance bearing surface to increase.

IPC Classes  ?

• F16J 15/18 - Sealings between relatively-moving surfaces with stuffing-boxes for elastic or plastic packings
• F16J 15/40 - Sealings between relatively-moving surfaces by means of fluid

Abstract

A bearing (31) with an integral diverted lantern ring for installation into the seal cavity (22) of a rotary mechanical device to provide a bearing surface and allow for flush fluid to engage the shaft (14) closer to the motor end is provided. The bearing eliminates whip in a rotating shaft and is split to allow easy installation over an installed shaft. The bearing is substantially cylindrical with an inner bore (34) closely approximating the outer diameter of the shaft. The diverted lantern ring includes an outer groove (36) at the impeller end on the outer surface (33) at a flush port (25) and a groove (37) on the inner surface at a location closer to the motor end. Flush fluid channels (46) are provided between the outer groove and inner groove of the bearing. The purpose is to redirect the external flush from the impeller end on the OD to the motor end on the ID, thus repositioning the flush deposit on the sleeve, under the bearing. This allows the throttling characteristic of the close clearance bearing surface to increase.

IPC Classes  ?

• F16J 15/18 - Sealings between relatively-moving surfaces with stuffing-boxes for elastic or plastic packings
• F16J 15/40 - Sealings between relatively-moving surfaces by means of fluid

Abstract

A bearing with an integral diverted lantern ring for installation into the seal cavity of a rotary mechanical device to provide a bearing surface and allow for flush fluid to engage the shaft closer to the motor end is provided. The bearing eliminates whip in a rotating shaft and is split to allow easy installation over an installed shaft. The bearing is substantially cylindrical with an inner bore closely approximating the outer diameter of the shaft. The diverted lantern ring includes an outer groove at the impeller end on the outer surface at a flush port and a groove on the inner surface at a location closer to the motor end. Flush fluid channels are provided between the outer groove and inner groove of the bearing. The purpose is to redirect the external flush from the impeller end on the OD to the motor end on the ID, thus repositioning the flush deposit on the sleeve, under the bearing. This allows the throttling characteristic of the close clearance bearing surface to increase.

IPC Classes  ?

• F16J 15/18 - Sealings between relatively-moving surfaces with stuffing-boxes for elastic or plastic packings
• F16C 33/74 - Sealings of sliding-contact bearings
• F04D 29/10 - Shaft sealings
• F16J 15/40 - Sealings between relatively-moving surfaces by means of fluid

Abstract

A seal-bearing assembly to be inserted into the seal cavity of a mechanical device to provide a seal and a bearing surface to eliminate whip in a rotating, reciprocal, or rotating and reciprocal cylindrical member. The seal-bearing assembly is particularly well suited for use in a reciprocal pump or a piston-driven valve, or between the steam lance and fixed steam tube in a sootblower. The assembly includes at least a pair of outer substantially rigid cylindrical bearings having an inner bore to be positioned over the cylindrical member and at least one complimentary flexible textile packing ring substantially comprised of carbon disposed between the two outer bearing members. In assemblies including an additional bearing, the additional bearing is surrounded by at least one flexible packing on each side. The inner bore of the bearing members provides a bearing surface for eliminating whip of the moving elements in the device.

IPC Classes  ?

• F16C 17/12 - Sliding-contact bearings for exclusively rotary movement characterised by features not related to the direction of the load
• F16C 33/74 - Sealings of sliding-contact bearings
• F16C 29/02 - Sliding-contact bearings
• F16C 33/20 - Sliding surface consisting mainly of plastics
• F16J 15/30 - Sealings between relatively-moving surfaces with stuffing-boxes for rigid sealing rings with sealing rings made of carbon
• F16J 15/32 - Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
• F16J 15/18 - Sealings between relatively-moving surfaces with stuffing-boxes for elastic or plastic packings

Abstract

A seal-bearing assembly to be inserted into the seal cavity of a mechanical device to provide a seal and a bearing surface to eliminate whip in a rotating and/or reciprocal cylindrical member. The seal-bearing assembly is particularly well suited for use in a reciprocal pump and between the steam lance and fixed steam tube in a sootblower. The assembly includes at least a pair of outer substantially rigid cylindrical bearings having an inner bore to be positioned over the cylindrical member and at least one complimentary flexible textile packing ring disposed between the two outer bearing members. In assemblies including an additional bearing, it is surrounded by at least one flexible packing on each side. The inner bore of the bearing members provide a bearing surface for eliminating whip of the moving elements in the device.

IPC Classes  ?

• F16C 33/74 - Sealings of sliding-contact bearings
• F16J 15/26 - Sealings between relatively-moving surfaces with stuffing-boxes for rigid sealing rings
• F16J 15/30 - Sealings between relatively-moving surfaces with stuffing-boxes for rigid sealing rings with sealing rings made of carbon

Abstract

A seal-bearing assembly to be inserted into the seal cavity of a mechanical device to provide a seal and a bearing surface to eliminate whip in a rotating and/or reciprocal cylindrical member. The seal-bearing assembly is particularly well suited for use in a reciprocal pump or a piston-driven valve, or between the steam lance and fixed steam tube in a sootblower. The assembly includes at least a pair of outer substantially rigid cylindrical bearings having an inner bore to be positioned over the cylindrical member and at least one complimentary flexible textile packing ring substantially comprised of carbon disposed between the two outer bearing members. In assemblies including an additional bearing, the additional bearing is surrounded by at least one flexible packing on each side. The inner bore of the bearing members provides a bearing surface for eliminating whip of the moving elements in the device.

IPC Classes  ?

• F16C 33/74 - Sealings of sliding-contact bearings
• F16J 15/26 - Sealings between relatively-moving surfaces with stuffing-boxes for rigid sealing rings
• F16J 15/30 - Sealings between relatively-moving surfaces with stuffing-boxes for rigid sealing rings with sealing rings made of carbon

Abstract

A seal-bearing assembly to be inserted into the seal cavity of a mechanical device to provide a seal and a bearing surface to eliminate whip in a rotating and/or reciprocal cylindrical member. The seal-bearing assembly is particularly well suited for use in a reciprocal pump or a piston-driven valve, or between the steam lance and fixed steam tube in a sootblower. The assembly includes at least a pair of outer substantially rigid cylindrical bearings having an inner bore to be positioned over the cylindrical member and at least one complimentary flexible textile packing ring substantially comprised of carbon disposed between the two outer bearing members. In assemblies including an additional bearing, the additional bearing is surrounded by at least one flexible packing on each side. The inner bore of the bearing members provides a bearing surface for eliminating whip of the moving elements in the device.

IPC Classes  ?

• F16C 17/12 - Sliding-contact bearings for exclusively rotary movement characterised by features not related to the direction of the load
• F16C 33/74 - Sealings of sliding-contact bearings
• F16J 15/30 - Sealings between relatively-moving surfaces with stuffing-boxes for rigid sealing rings with sealing rings made of carbon
• F16J 15/20 - Packing materials therefor
• F16C 29/02 - Sliding-contact bearings
• F16C 33/16 - Sliding surface consisting mainly of graphite
• F16C 33/20 - Sliding surface consisting mainly of plastics
• F16C 33/24 - BrassesBushesLinings with different areas of the sliding surface consisting of different materials
• F16J 15/18 - Sealings between relatively-moving surfaces with stuffing-boxes for elastic or plastic packings

Abstract

A seal-bearing assembly to be inserted into the seal cavity of a mechanical device to provide a seal and a bearing surface to eliminate whip in a rotating and/or reciprocal cylindrical member. The seal-bearing assembly is particularly well suited for use in a reciprocal pump and between the steam lance and fixed steam tube in a sootblower. The assembly includes at least a pair of outer substantially rigid cylindrical bearings having an inner bore to be positioned over the cylindrical member and at least one complimentary flexible textile packing ring disposed between the two outer bearing members. In assemblies including an additional bearing, it is surrounded by at least one flexible packing on each side. The inner bore of the bearing members provide a bearing surface for eliminating whip of the moving elements in the device.

IPC Classes  ?

• F16C 33/74 - Sealings of sliding-contact bearings
• F16C 17/12 - Sliding-contact bearings for exclusively rotary movement characterised by features not related to the direction of the load
• F16J 15/30 - Sealings between relatively-moving surfaces with stuffing-boxes for rigid sealing rings with sealing rings made of carbon

Abstract

A locking collar to be inserted into a cylindrical cavity or lumen of a device for securing mechanical elements from moving axially within the cavity. The collar includes two semi-circular cylindrical segments hinged together with an opposed single slit to allow easy installation within the cavity and pushed into position against the installed elements without the need to disassemble a device. The collar is a substantially cylindrical rigid member with an outer diameter closely matching the inner bore diameter of the cavity and includes an opening at the slit to receive a securing screw member to urge the two segments apart to engage the inner bore surface of the cavity and fix the collar in place thereby locking the elements in place.

IPC Classes  ?

• B25G 3/24 - Locking or securing devices comprising clamping or contracting means acting transversely on the handle or socket
• F16B 2/02 - Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening
• F16B 7/04 - Clamping or clipping connections
• F16J 15/16 - Sealings between relatively-moving surfaces