A method of forming maintenance-free rolling door vacuum slats includes an elongate tubular member forming a cavity with a substantially uniform cross-sectional configuration along its length and forming first and second opposing ends conforming to the cross-sectional configuration. A first cap seals the first end. A second cap seals the second end, a vacuum being formed within the cavity. The first and second caps are joined to the elongate member to form a hermetic seals to render the slat airtight forming a permanent vacuum insulation barrier that requires no maintenance to restore the vacuum within the cavity.
A maintenance-free rolling door vacuum slat includes an elongate tubular member forming a cavity with a substantially uniform cross-sectional configuration along its length and forming first and second opposing ends conforming to the cross-sectional configuration. A first cap seals the first end. A second cap seals the second end, a vacuum being formed within the cavity. The first and second caps are joined to the elongate member to form a hermetic seals to render the slat airtight forming a permanent vacuum insulation barrier that requires no maintenance to restore the vacuum within the cavity.
A fire door operator for a rolling door includes a housing defining an axis. An outer main gear in the form of an annular ring is mounted within the housing for rotation about the axis and formed with exterior gear teeth and radially inwardly spaced interior teeth. Planet gears are meshed with the interior teeth and a sun gear is meshed with the planet gears for rotation about the axis. A carrier is secured to the planetary gears and coupled to the shaft. A lock normally locks the main gear in relation to the housing. A drive selectively rotates the sun gear and the carrier to transmit rotational power to a rolling door shaft when secured to the carrier. A releasing device selectively releases the lock to allow free rotation of the main gear and the carrier to allow a rolling door to be lowered under its own weight.
A limit position safety device for establishing upper and lower limit positions of a rolling door that can be raised when rolled onto a generally horizontal shaft when the shaft rotates in a first direction and lowered when the shaft rotates in an opposing direction. The device includes two electrical limit switches each actuatable to reflect when an associated limit position of the rolling door has been reached. Actuators are movable to selectively actuate one of the limit switches at associated upper or lower limit positions of the rolling door. Drive gear are directly coupled to the shaft for moving the actuators in response to movements of the rolling door horizontal shaft. Accordingly, the direct drive gears always provide a direct physical connection or link between the rolling door shaft and the actuators to provide reliable indications of the position of the rolling door.
A limit position safety device for establishing upper and lower limit positions of a rolling door that can be raised when rolled onto a generally horizontal shaft when the shaft rotates in a first direction and lowered when the shaft rotates in an opposing direction. The device includes two electrical limit switches each actuatable to reflect when an associated limit position of the rolling door has been reached. Actuators are movable to selectively actuate one of the limit switches at associated upper or lower limit positions of the rolling door. Drive gear are directly coupled to the shaft for moving the actuators in response to movements of the rolling door horizontal shaft. Accordingly, the direct drive gears always provide a direct physical connection or link between the rolling door shaft and the actuators to provide reliable indications of the position of the rolling door.
A power transfer device for a fire door operator having a pair of drive gears includes a bridge gear box having a drive shaft suitable for being coupled to an external drive. An idle spur gear is fixed to the drive shaft. A pair of spur gears are coupled to the idle spur gear to rotate in response to rotations of the idle spur gear. Spur gear shafts are coupled to the spur gears and arranged to be coupled to the drive gears of the operator so that rotation of the drive shaft by an external drive is translated to simultaneous rotations of the drive gears of the operator.
A fire door operator for a rolling door includes a housing defining an axis. An outer main gear in the form of an annular ring is mounted within the housing for rotation about the axis and formed with exterior gear teeth and radially inwardly spaced interior teeth. Planet gears are meshed with the interior teeth and a sun gear is meshed with the planet gears for rotation about the axis. A carrier is secured to the planetary gears and coupled to the shaft. A lock normally locks the main gear in relation to the housing. A drive selectively rotates the sun gear and the carrier to transmit rotational power to a rolling door shaft when secured to the carrier. A releasing device selectively releases the lock to allow free rotation of the main gear and the carrier to allow a rolling door to be lowered under its own weight.
A power transfer device for a fire door operator having a pair of drive gears includes a bridge gear box having a drive shaft suitable for being coupled to an external drive. An idle spur gear is fixed to the drive shaft. A pair of spur gears are coupled to the idle spur gear to rotate in response to rotations of the idle spur gear. Spur gear shafts are coupled to the spur gears and arranged to be coupled to the drive gears of the operator so that rotation of the drive shaft by an external drive is translated to simultaneous rotations of the drive gears of the operator.
A fire door operator for a rolling door includes a housing defining an axis. An outer main gear in the form of an annular ring is mounted within the housing for rotation about the axis and formed with exterior gear teeth and radially inwardly spaced interior teeth. Planet gears are meshed with the interior teeth and a sun gear is meshed with the planet gears for rotation about the axis. A carrier is secured to the planetary gears and coupled to the shaft. A lock normally locks the main gear in relation to the housing. A drive selectively rotates the sun gear and the carrier to transmit rotational power to a rolling door shaft when secured to the carrier. A releasing device selectively releases the lock to allow free rotation of the main gear and the carrier to allow a rolling door to be lowered under its own weight.
E06B 9/68 - Operating devices or mechanisms, e.g. with electric drive
E05B 65/10 - Locks for special use for panic or emergency doors
E05F 15/668 - Power-operated mechanisms for wings using electrical actuators using rotary electromotors for vertically-sliding wings for overhead wings
F16H 1/28 - Toothed gearings for conveying rotary motion with gears having orbital motion
E06B 9/74 - Operating devices or mechanisms, e.g. with electric drive adapted for selective electrical or manual operation
E06B 9/70 - Operating devices or mechanisms, e.g. with electric drive comprising an electric motor positioned outside the roller
E05B 17/04 - Devices for coupling the turning cylinder of a single or double cylinder lock with the bolt-operating member
A power transfer device for a fire door operator having a pair of drive gears includes a bridge gear box having a drive shaft suitable for being coupled to an external drive. An idle spur gear is fixed to the drive shaft. A pair of spur gears are coupled to the idle spur gear to rotate in response to rotations of the idle spur gear. Spur gear shafts are coupled to the spur gears and arranged to be coupled to the drive gears of the operator so that rotation of the drive shaft by an external drive is translated to simultaneous rotations of the drive gears of the operator.
E06B 9/68 - Operating devices or mechanisms, e.g. with electric drive
E05B 65/10 - Locks for special use for panic or emergency doors
E05F 15/668 - Power-operated mechanisms for wings using electrical actuators using rotary electromotors for vertically-sliding wings for overhead wings
F16H 1/28 - Toothed gearings for conveying rotary motion with gears having orbital motion
E06B 9/74 - Operating devices or mechanisms, e.g. with electric drive adapted for selective electrical or manual operation
E06B 9/70 - Operating devices or mechanisms, e.g. with electric drive comprising an electric motor positioned outside the roller
E05B 17/04 - Devices for coupling the turning cylinder of a single or double cylinder lock with the bolt-operating member
A limit position safety device for establishing upper and lower limit positions of a rolling door that can be raised when rolled onto a generally horizontal shaft when the shaft rotates in a first direction and lowered when the shaft rotates in an opposing direction. The device includes two electrical limit switches each actuatable to reflect when an associated limit position of the rolling door has been reached. Actuators are movable to selectively actuate one of the limit switches at associated upper or lower limit positions of the rolling door. Drive gear are directly coupled to the shaft for moving the actuators in response to movements of the rolling door horizontal shaft. Accordingly, the direct drive gears always provide a direct physical connection or link between the rolling door shaft and the actuators to provide reliable indications of the position of the rolling door.
E06B 9/68 - Operating devices or mechanisms, e.g. with electric drive
E06B 9/88 - Safety measures against dropping or unauthorised openingBraking or immobilising devicesDevices for limiting unrolling automatic for limiting unrolling
E06B 9/70 - Operating devices or mechanisms, e.g. with electric drive comprising an electric motor positioned outside the roller
E06B 9/74 - Operating devices or mechanisms, e.g. with electric drive adapted for selective electrical or manual operation
13.
Auxiliary chain assembly for rolling doors and the like
A chain assembly includes a wheel secured on a shaft. A chain manually rotates the wheel and the shaft. A one way bearing has an inner race secured to the shaft and has an outer race that can freely rotate in only one direction in relation to the inner race. A brake drum is coupled to the outer race. Brake shoes are in operative contact with the brake drum to apply friction to the brake drum when there is relative motion between them. A brake adjuster adjusts the braking force applied by the brake shoes on said brake drum. The one way bearing is arranged to maintain the brake drum stationary in one direction of rotation of the shaft and rotate the brake drum in the opposite direction of rotation resulting in a degree of braking of the shaft as determined by the brake adjuster.
E06B 9/84 - Safety measures against dropping or unauthorised openingBraking or immobilising devicesDevices for limiting unrolling automatic against dropping
E06B 9/15 - Roller shutters with closing members formed of slats or the like
E06B 9/78 - Operating, guiding or securing devices or arrangements for roll-type closuresSpring drumsTape drumsCounterweighting arrangements therefor for direct manual operation, e.g. by tassels, by handles
E06B 9/80 - Safety measures against dropping or unauthorised openingBraking or immobilising devicesDevices for limiting unrolling
14.
AUXILLIARY CHAIN ASSEMBLY FOR ROLLING DOORS AND THE LIKE
A chain assembly includes a wheel secured on a shaft. A chain manually rotates the wheel and the shaft. A one way bearing has an inner race secured to the shaft and has an outer race that can freely rotate in only one direction in relation to the inner race. A brake drum is coupled to the outer race. Brake shoes are in operative contact with the brake drum to apply friction to the brake drum when there is relative motion between them. A brake adjuster adjusts the braking force applied by the brake shoes on said brake drum. The one way bearing is arranged to maintain the brake drum stationary in one direction of rotation of the shaft and rotate the brake drum in the opposite direction of rotation resulting in a degree of braking of the shaft as determined by the brake adjuster.
An elongate shell for forming a slat for a rolling door includes a planar portion having parallel first and second longitudinal edges and formed along the first longitudinal edge with a first arcuate segment and formed along an opposing second longitudinal edge with second arcuate segment, the first and second arcuate segments being positioned on the same side of said planar portion and configured and dimensioned to enable the second arcuate segment of a first shell to be received with clearance within a first arcuate segment of second shell identical to the first shell to form an articulated joint hingedly connecting the elongate shells so they can be pivoted relative to each other. Two identical shells can be oriented to be assembled to form a double-walled slat with longitudinal hooks or claws for assembling a plurality of slats, with or without insulation, into a curtain assembly for a rolling door.
An elongate shell for forming a slat for a rolling door includes a planar portion having parallel first and second longitudinal edges and formed along the first longitudinal edge with a first arcuate segment and formed along an opposing second longitudinal edge with second arcuate segment, the first and second arcuate segments being positioned on the same side of said planar portion and configured and dimensioned to enable the second arcuate segment of a first shell to be received with clearance within a first arcuate segment of second shell identical to the first shell to form an articulated joint hingedly connecting the elongate shells so they can be pivoted relative to each other. Two identical shells can be oriented to be assembled to form a double-walled slat with longitudinal hooks or claws for assembling a plurality of slats, with or without insulation, into a curtain assembly for a rolling door.
E06B 9/15 - Roller shutters with closing members formed of slats or the like
E06B 9/165 - Roller shutters with closing members formed of slats or the like with slats disappearing in each otherRoller shutters with closing members formed of slats or the like with slats the distance between which can be altered
42 - Scientific, technological and industrial services, research and design
Goods & Services
Providing temporary use of online non-downloadable software that allows users to generate computer aided design drawings in the field of overhead roll-up doors and coiling doors
18.
Method and apparatus for driving a roller shutter door
The present invention is a method and apparatus for driving a roller-shutter door having a drive mechanism. The method comprises the activation of a circuit in response to an external stimuli to a switch. This actuates a timer and raises a timing bar. A cable passes across the timing bar and is connected to the switch on one end and to a solenoid on a second end. The cable passes through a top portion of a rocker arm assembly having a one-way bearing. The solenoid is actuated as a result of the raising of the timing bar; and activates the one-way bearing to cause the door to be raised to a pre-set position for a pre-set period of time. To reverse the door, the timer bar is dropped after the lapse of the pre-set period of time. The solenoid is re-activated and reverses the one-way bearing.
09 - Scientific and electric apparatus and instruments
Goods & Services
safety release mechanism in the nature of a sensor which is activated by heat from a fire to send an electronic signal to manually and motor operated systems for closing fire doors
