Matches 1 - 29 out of 29
Match Document Document Title
7432676 Barrier movement operator having obstruction detection  
A barrier movement operator includes an A.C. motor having a rotatable rotor connected to a barrier for movement thereof. A sensing apparatus generates motor signals representing an operational...
7418800 Automatic door opener with magnetic clutch  
An automatic door opener ( 10 ) for opening or closing a door ( 28 ) includes a motor ( 14 ) driving a drive shaft ( 50 ) and an opener arm ( 18 ) connected to the door ( 28 ) and being responsive...
EP1526248B1 Tape drum for a darkening device, like a roller shutter  
7367160 Door operator system  
An operator for use in connection with a door system including an axle having an operator framework supporting an operator motor, the operator framework defining a clearance adapted to insertably...
7339338 Method for operating a door and a door drive for carrying out this method  
A door, especially a sectional door, is operated with the use of a drive unit with a drive gear, a clutch, and a position-detecting unit. The position-detecting unit detects the direction of...
7310911 Automatic door opener with magnetic clutch  
An automatic door opener ( 10 ) for opening or closing a door ( 28 ) includes a motor ( 14 ) driving a drive shaft ( 50 ) and an opener arm ( 18 ) connected to the door ( 28 ) and being responsive...
7296607 Side mount counterbalance system for upward acting door  
A counterbalance system for an upward acting door includes a cable drum support shaft and a torsion spring drive mechanism mounted adjacent one or both sides of the door and drivably connected to...
7282883 Pivoting and barrier locking operator system  
A system for moving a barrier between limit positions, includes an operator motor assembly mounted proximate to the barrier, wherein at least a portion of the motor assembly is movable between an...
7254868 winding and anti-drop assembly for door counterbalance system  
A counterbalance system ( 25 ) for a door (D) movable between a closed position and an open position having an axle ( 20 ), a cable drum ( 15 ) attached to the axle, a winding shaft ( 35 )...
7205735 Barrier movement operator having obstruction detection  
A barrier movement operator which uses an A.C. motor to move a barrier is disclosed herein. The operator senses a characteristic of barrier movement, such as motor rotation speed, to detect when...
7061197 Pivoting and barrier locking operator system  
A system for moving a barrier between limit positions, includes an operator motor assembly mounted proximate to the barrier, wherein at least a portion of the motor assembly is movable between an...
EP1526248A2 Tape drum for a darkening device, like a roller shutter  
A winder (2) in a casing (1) winds up belting (3). A motor gearing mechanism (4) coupled to the winder drives the winder. A feeder channel (5), preferably with a deflection roller (6) fitted in it,...
6860065 Remote release for a movable barrier arrangement  
A system for decoupling a barrier from a barrier movement apparatus for the manual operation of the barrier. Advantageously, the decoupling is performed in response to a wireless signal and may be...
6634140 Automatic door opener  
An automatic door opener ( 10 ) for opening or closing a door ( 28 ) includes a motor ( 14 ) driving a drive shaft ( 50 ) and an opener arm ( 18 ) connected to the door ( 28 ) and being responsive...
6527037 Rolling door tensioner  
A rolling door including an axle supported by end brackets, a plurality of drum wheels mounted on the axle, a multi-section door adapted to be selectively rolled and unrolled about the drum wheels,...
EP0684452B1 Position detector and position control method for a moving body  
Abstract of EP0684452 In a position detector (30), a ring gear (46) rotates with a motor output shaft and a specified rotation position is detected by a move contact (50) and fixed contacts (60)....
6374543 Door opener apparatus with power transfer mechanism  
A garage door opener apparatus ( 10 ) with a transfer mechanism ( 50 ) is described. The transfer mechanism includes motor sprocket ( 59 ), chain ( 52, 52 A), drive sprocket ( 53, 53 A), shaft (...
6373214 Method and device for exerting a closing force upon an element that has been opened  
The present invention relates to a drive system for closing elements, preferably for doors, roller blinds or windows, with a motor, with a position pick-up to detect certain positions of the...
6230864 Clutch mechanism  
A drive engagement mechanism for providing selective engagement with a drive shaft where the drive shaft includes a surface having a discontinuity. The engagement mechanism includes a cylindrical...
6114820 Power window apparatus having safety unit  
A power window apparatus is provided for detecting pinching in accordance with the opened/closed position of the window and a state of rotation of a motor, the apparatus having a position sensor...
5794381 Selectively engageable motor drive assembly  
A selectively engageable motor-drive assembly operable for moving a vehicle door or ramp to enable manual operation or motorized operation is provided, having a motor, a pulley drawing a cable...
5778490 Tension device for live axle doors  
A live axle tension device (15) that is suitable for adjusting the setting of a spring (16) on a live axle door (10). The tension device comprises a spring (16) that connects to a drum wheel (14)...
5773947 Position detector and position control method for a moving body  
In a position detector, a ring gear rotates with a motor output shaft and a specified rotation position is detected by a move contact and fixed contacts. When the output shaft rotates thereafter,...
5698073 Automatic sectional door opener  
An automatic opener for a sectional door includes a drive unit mounted adjacent to a door drive shaft and having a reversible motor, a gear linkage for translating rotation of the motor drive shaft...
EP0780536A1 Gate  
The coupling is operable from an operating component (12) outside the building. Two operating components are provided, one operable from inside the building and one from the outside. The inside...
5572829 Power operated garage door  
A power operated garage door of the type having a single section movable from a vertical closed position to a horizontal open position at the ceiling of the garage by cables which pull the door...
5557887 Yieldable gearing and safety mechanisms for garage door operators  
A garage door operator which senses obstructions and takes corrective action before entrapment can occur. Yieldable gears are utilized as a failsafe mechanism such that when the applied torque...
EP0684452A2 Position detector and position control method for a moving body.  
In a position detector (30), a ring gear (46) rotates with a motor output shaft and a specified rotation position is detected by a move contact (50) and fixed contacts (60). When the output shaft...
5152893 Ceramic filter for molten metal  
A ceramic filter used for filtering molten metal, particularly molten aluminum, made by sintering the composition comprising 90 parts by weight of electrofused alumina for an aggregate and 5 to 15...
Matches 1 - 29 out of 29