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Class 160/296 - Speed limiting


Subclass of Class 160 - Flexible or portable closure, partition, or panel
Definition: Roll type devices in which the brake or stop prevents the
No. of patents: 38
Last issue date: 04/05/2011


NumberTitleIssue Date
7918264Constant viscosity speed reducer
A speed reducer assembly for rolling screen systems includes a speed reducer chamber. A resistance element is mounted for movement within the speed reducer chamber. A non-viscous resistance material is provided in contact with the resistance element within the speed...
04/05/2011
7461683Curtain rolling buffer apparatus
An improved curtain rolling buffer apparatus mainly includes a rolling means mounted to a left end of the track to allow the curtain hanging below the track to be extended by pulling once and retracted by pulling another time. A buffer means is located on the right ...
12/09/2008
7360736Viscous braking device equipped with monodirectional mechanism, particularly for mosquito curtains
A monodirectional braking mechanism for use with a device for extending and retracting a sheet of material on a roller, the braking mechanism comprising one or more than one housing, one or more than one rotor within the housing, a brake controller connected to the ...
04/22/2008
7325584Mechanism for tensioning a compensation spring for a closing or sun protection installation
The invention relates to a mechanism comprising at least one spring (3) for compensating the weight of a closing screen, said spring (3) being fixed, at one of its ends (32), to a ring (6) which is rotatably arranged around a shaft (4
02/05/2008
7246648Friction device for rolling up curtains and the like
A friction device for rolling up curtains and the like includes a tubular roller (1), on which a curtain (1a) is wound. The roller (1) is rotatably carried by a support (10) and a threaded stem (2) is situated axially inside...
07/24/2007
7237592Maneuvering mechanism and closing installation or sun protection installation incorporating one such device
A mechanism (1) comprising a driving element (4) for rotationally driving a winding shaft (2) for a closing or sun-protection installation of an opening (0) and at least one spring (5) for compensating a weight of the installation....
07/03/2007
7234503Roll screen for reduction device
The present invention relates to a reduction device for a roll screen, as a compressive piston of a reduction part comes in and out inside of a cylinder combined with a one end of inside of a winding bar, to a device being capable of winding and loosening the roll s...
06/26/2007
7210513Screen frame with integral roll screen compartment and improvements thereof
A sliding screen frame for a closure assembly having an opening and an existing track for mounting a screen, the screen frame has framing sections with both inner and outer side edges, and a housing from which a screen is payed out and accumulated. The framing secti...
05/01/2007
7165688Retractable hanging apparatus
A retractable hanging apparatus that includes an engagement structure, such as a bar, upon which an article is hung or secured, with the engagement structure being suspended by one or more lines that are attached to a spring-biased roller assembly rotatably mounted ...
01/23/2007
7134474Elastic coupling device for connecting two rotating parts
The invention concerns an elastic coupling device comprising a first cylindrical part (46), a second cylindrical part (47), at least partly tubular and enclosing the first part with its tubular part and provided with internal teeth (9), at least...
11/14/2006
7086441Hydraulic governor device for use with a rotational shaft, and door assembly including the same
A hydraulic governor device for use with a rotational shaft of a door assembly for controlling a rotation of said rotational shaft. The device includes a sleeve; first and second end coverings mounted respectively onto first and second ends of the sleeve so as to de...
08/08/2006
7047991Bed enclosure
A bed enclosure comprising a frame, a tent supported by the frame, and a mattress cover is disclosed. The frame employs a pair of opposed upright end members, an upper support bar connecting the upright end members, and an attachment bar connected to at least one of...
05/23/2006
7048319Easy-to-use safety net device
The invention relates to a safety net device with a housing, in which a winding shaft is rotationally mounted. The winding shaft is pretensioned by a spring motor in the direction of winding of a safety net which is fixed to the winding shaft. The other edge of the ...
05/23/2006
6959748Apparatus for covering an opening in a building
A storm protector (20) to be attachable over a window (21) or other opening of a building (22) includes a header (26), a bottom sill (25) and side frames (23, 24) extending between the ends of the header (26) and the ...
11/01/2005
6955207Friction device for roll-up curtains and the like
A friction device (10), applied to roll-up curtains and the like, includes a tubular roller (1), on which the curtain (2) rolls up, and which is rotatably carried on a horizontal axis. The friction device (10) includes a threaded shaft (
10/18/2005
6948544Blind lift rod control lock
A blind lift rod control lock includes a housing having an axle hole, a rotating member revolvably mounted in the axle hole of the housing, the rotating member having a non-circular through hole, which receives a lift rod for enabling the rotating member to be synch...
09/27/2005
6938667Automatic wind-up screen device
An automatic winding screen device has a coil spring fixed to a bracket at one end of a winding box, the other end of the coil spring being fixed to a winding shaft, and a damper for alleviating impact and collision noise. Between the damper on a shaft fixed to the ...
09/06/2005
6923398Mechanism for winding sheet material
A winding mechanism retains a sheet material in a state in which the sheet material can be pulled out. The winding mechanism includes a flexible sheet material, a winding shaft attached to one end of the sheet material, a force application device that always applies...
08/02/2005
6854505Speed reducer for retractable screen systems
A retractable screen mechanism is disclosed for covering an opening. The retractable screen mechanism comprises two tracks mounted on opposing sides of the opening. A screen comprises a screen material mounted on a frame having two flexible opposing sides correspond...
02/15/2005
6749142Apparatus for winding sheet-like element
A sheet-like element winding apparatus has an accommodating case 1, at one end portion of which a cap 2 is attached to, and also has a winding shaft 3, disposed in the accommodating case 1, for winding a sheet-like element, and a pushing ...
06/15/2004
6666252Winding mechanism
A winding mechanism for controlling the retraction and deployment of an architectural covering, such as a window blind or shade having a winding element 12, about which the covering, or its lift cord or tapes are wound and unwound with rotation of the win...
12/23/2003
6591890Speed reducer for retractable screen systems
A retractable screen mechanism having two tracks mounted on opposing sides of an opening and a screen with a screen material mounted on a frame having two flexible opposing sides corresponding to and adapted to engage the two tracks. A spool mechanism for...
07/15/2003
6550597Emergency brake mechanism
In an emergency brake mechanism of the present invention, a rotation input shaft is increased in rotation speed by a planetary set-up gear to centrifuge weights. Through the action of the centrifugal force of the weights, linings of the brake shoes are br...
04/22/2003
6467714Winding mechanism for roller blinds
A roller for a roller blind in the shape of a tube (T) comprising a mechanism known per se is braked by means of friction, in that a compression spring (7) is compressed when the blind is pulled down and establishes a force between a collar (6) on the non...
10/22/2002
6443210Winding mechanism
A winding mechanism for controlling the retraction and deployment of an architectural covering, such as a window blind or shade having a winding element 12, about which the covering, or its lift cord or tapes are wound and unwound with rotation of the win...
09/03/2002
6223802Control system for coverings for architectural openings
A control system for a vertically moveable covering for an architectural opening includes a uni-directional drive assembly that is operated with a single pull element such that upon pulling of the pull element, the covering can be raised in increments. A ...
05/01/2001
6155328Winding mechanism
A winding mechanism for controlling the retraction and deployment of an architectural covering, such as a window blind or shade having a winding element, about which the covering, or its lift cord or tapes are wound and unwound with rotation of the windin...
12/05/2000
6129131Control system for coverings for architectural openings
A control system for a vertically moveable covering for an architectural opening includes a uni-directional drive assembly that is operated with a single pull element such that upon pulling of the pull element, the covering can be raised in increments. A ...
10/10/2000
6123134Method and apparatus for regulating the closing speed of a rolling fire door
A mechanism for regulating the closing speed of a rolling fire door during an emergency condition. The speed regulating mechanism includes a viscous speed governor which is operatively connected to the support shaft of the fire door for providing a speed ...
09/26/2000
6059008Braking device for shutter for building
A device for preventing a shutter curtain from falling by its own weight and allowing the shutter curtain to descend in a braked manner, is provided such that separate space for the device does not need to be provided. A viscous clutch 9, which provides b...
05/09/2000
5634507Driving device for vertically movable shutters
The invention relates to a driving device for a roller shutter 1. For driving the roller shutter 1 into the open position there is provided a motor 8 with a drive 7 and a chain drive 5 which acts on the bearing shaft 3 of the roller 2 winding up the rolle...
06/03/1997
5542464Roller blind with screen rolled up by a spring and rolled down by hand
A clutch-brake type roll blind is provided with a wind-up spring for rolling up a screen on a tube and a weight bar free from a pulling string, being suitable for use with a tall window extending from floor to ceiling. The roll blind includes a rotary sha...
08/06/1996
5022452Rolling fire door
A rolling fire door consists of a plurality of interconnected fireproof slats forming a curtain which is received by a pair of tracks along the sides of an opening to be secured. A torsion spring assembly assists in the raising and lowering of the curtain...
06/11/1991
4848522Safety device to prevent accidental unwinding of a rolling shutter or rolling overhead door wound on a shaft
A safety device for preventing accidental unrolling of a rolling shutter or overhead door comprising a cogwheel which has uniformly distributed on the circumference opening outward for containing radially movable tumblers, a cage which surrounds the cogwh...
07/18/1989
4838333Roller blind with a centrifugal-mass brake located outside the roller and an end support containing the brake
A roller blind comprising a horizontal roller for supporting the blind and mounted for rotation about its own axis, a blind having an upper edge fixed to the roller and a free lower edge, resilient means tending to bias the roller towards a position in wh...
06/13/1989
4521048Vehicle supported collapsible bed with shelter cover
Vehicle supported collapsible bed with a shelter cover comprises a pair of spaced upright center sections upon a support panel overlying and secured to the vehicle roof, and longitudinally spaced pairs of upright end sections at their ends pivotally mount...
06/04/1985
4188992Brake device for rotatable and spring loaded rods, foil or cloth material being attachable to said rods
A braking device for roller blind spring loaded rods compressing a sleeve affixed to the end of the rod carrying therein several radially movable weight segments. The shaft upon which the rod rotates carries at least one non-rotatable braking element. The...
02/19/1980
4112996Safety device for arresting unrolling of roller blinds
A roller blind with a safety device for arresting accidental unrolling of the blind in which a concentric blocking shaft is affixed to the winding shaft, a gear fastened to the blocking shaft, a pivotally mounted pawl with a spring urging the pawl in cont...
09/12/1978
 
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