Yieldable gearing and safety mechanisms for garage door operators

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 5557887
SERIAL NO

08330479

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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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 exceeds certain limit, the gears disengage so that the garage door can be manually moved. The yieldable gears may also be disengaged by remote control or by hand. Solid state circuitry is provided to achieve soft starts and stops of the electric motor. Test circuitry is provided that tests the operational readiness of the electrical components by simulating an abnormal torque condition. During operation of the electric motor, the torque load is electronically calculated and if an abnormal torque load is encountered, the electric motor reverses direction.

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First Claim

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Family

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Patent Owner(s)

Patent OwnerAddressTotal Patents
Fellows; Jerry W.MARTINEZ, CA0

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Davis, Richard S Palo Alto, CA 18 312
Fellows, Jerry W 4950 John Muir Rd., Martinez, CA 94553 2 60
Sherlock, Thomas M Los Altos Hills, CA 12 136

Cited Art Landscape

Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (3)
* 4428252 Actuator device for opening a sliding door 2 1981
* 4732203 Sectional door with operator 14 1986
* 5335307 Precision electric motor speed 8 1993
 
Firmaframe Nominees Pty. Ltd. (1)
* 4342354 Mechanism for stopping the drive or reversing the drive of motors of roller shutter doors 34 1980
 
The Chamberlain Group, Inc. (1)
* 4653565 Garage door opener 20 1985
 
SIEMENS AKTIENGESELLSCHAFT (1)
* 5239252 Method and apparatus for controlling single or multiphase A.C. power controllers 6 1990
 
Firmagroup Australia Pty. Ltd. (1)
* 4706727 Door operator 23 1985
 
UUSI, LLC (1)
* 5334876 Power window or panel controller 94 1992
 
Everest & Jennings Canadian Limited (1)
* 4504094 Drive mechanism for invalid carriages 11 1982
 
GMI HOLDINGS, INC. (1)
* 5384495 Wiring error detector for door operator 11 1993
 
Stanley Home Automation (1)
* 5278480 Door opener control with adaptive limits and method therefor 158 1992
 
R & S WHOLESALE DOORS, INC. (1)
* 5222327 Side mount garage door operator 39 1991
 
ITT CORPORATION (1)
* 5105131 Power drive system for sliding door 45 1990
 
CONAX FLORIDA CORPORATION (1)
* 4680537 Method and apparatus for testing a conductivity sensing circuit 12 1985
 
Effective Flow Ideas, Inc. (1)
* 4832184 Live roller conveyor apparatus 20 1987
 
F.LLI CUCCHI S.R.L. (1)
* 4667789 Control device for feeding metal bars for supplying an automatic multi-spindle lathe 5 1985
 
MITSUBISHI DENKI KABUSHIKI KAISHA (1)
* 5080642 Rotation transmission device with a torque limiting transmission gear mechanism 8 1990
 
FAIVELEY ENTERPRISES (1)
* 4605108 Device for releasing a rotational-locking actuating member 18 1983
 
SUNDSTRAND CORPORATION (1)
* 5040643 Radial torque limiter 2 1990
 
BELL & HOWELL COMPANY (1)
* 4553652 Coupling mechanism 12 1983
 
JOHNSON CONTROLS TECHNOLOGY COMPANY (1)
* 5246095 Output torque sensor and control apparatus 2 1992
 
JOHNSON SERVICE COMPANY (1)
* 4794314 Environmental position actuator apparatus having load responsive limit control apparatus 23 1987
 
IVG Australia Pty. Ltd. (1)
* 5042315 Gear mechanism 9 1989
 
C. & E. FEIN GMBH (1)
* 4923047 Machine with variable torque setting 9 1988
 
Chamnberlain Manufacturing Corporation (1)
* 4472910 Integral device for garage door opener 91 1982
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
Hydromach Inc. (1)
* 5698073 Automatic sectional door opener 56 1996
 
Other [Check patent profile for assignment information] (8)
* 5937578 Garage door safety sensor mounting assembly 5 1997
* 6179036 Automatic overhead door opening system with dual motor drive and automatic door lock 18 1999
* 2005/0183,236 Sliding replacement door 1 2005
* 2006/0015,398 Intruder, theft and vandalism deterrent management system for controlling a parking area 6 2005
8375635 Apparatus for opening and closing overhead sectional doors 1 2009
8825535 Management and control system for a designated functional space having at least one portal 1 2011
8831970 Virtual attendant system and parking management system 15 2012
* 9162094 Door machine mechanism for rolling door having functions of fireproof, smokeproof, and fire escape 0 2013
 
WON-DOOR CORPORATION (4)
* 7782019 Method and apparatus for battery-backed power supply and battery charging 14 2009
* 2010/0078,134 METHOD AND APPARATUS FOR BATTERY-BACKED POWER SUPPLY AND BATTERY CHARGING 2 2009
8493033 Method and apparatus for battery-backed power supply and battery charging 5 2010
* 2011/0036,513 METHOD AND APPARATUS FOR BATTERY-BACKED POWER SUPPLY AND BATTERY CHARGING 13 2010
 
SMARTDOOR HOLDINGS, INC. (3)
6484784 Door controlling device 65 2000
6945303 Intruder, theft and vandalism deterrent management system for controlling a parking area 14 2002
* 2003/0075,287 Intruder, theft and vandalism deterrent management system for controlling a parking area 5 2002
 
The Chamberlain Group, Inc. (8)
* 6091217 Safety gate operator which prevents entrapment, and method of its operation 29 1998
* 6860065 Remote release for a movable barrier arrangement 7 2002
* 6995533 Controlled torque drive for a barrier operator 3 2003
* 7205735 Barrier movement operator having obstruction detection 3 2004
* 2005/0156,546 Barrier movement operator having obstruction detection 0 2004
7610030 Wireless transmit-only apparatus and method 0 2006
* 2007/0054,644 Wireless Transmit-Only Apparatus and Method 3 2006
7432676 Barrier movement operator having obstruction detection 3 2006
 
WAYNEDALTON CORP. (1)
* 2009/0115,366 Pivoting and Barrier Locking Operator System 5 2006
 
WAYNE-DALTON CORP. (5)
6253824 Disconnect for powered sectional door 26 1999
6326751 System and related methods for detecting and measuring the operational parameters of a garage door utilizing a lift cable system 47 1999
6845804 Overhead door locking operator 6 2003
7143804 Overhead door locking operator with remote light assembly 3 2005
* 2005/0126,717 Overhead door locking operator with remote light assembly 0 2005
 
GMI HOLDINGS, INC. (1)
6851465 Overhead door locking operator 4 2003
 
HORMANN KG ANTRIEBSTECHNIK (2)
* 7007427 Separating device for an overhead door 3 2002
* 2003/0019,157 Separating device 0 2002
 
Kabushiki Kaisha Komatsu Seisakusho (1)
* 5802766 Method and apparatus for controlling automatic opening and closing of window of driver's cab of working vehicle 3 1996
 
HOMERUN HOLDINGS CORPORATION (20)
* 5931212 Motorized operator for doors 38 1997
* 5929580 System and related methods for detecting an obstruction in the path of a garage door controlled by an open-loop operator 78 1997
* 6164014 Cable control device for sectional overhead door 49 1998
6401792 Motorized operator for doors 37 1999
6263947 Cable control device for sectional overhead door 6 2000
* 6561255 Overhead door locking operator 20 2000
6588156 Sectional door operator alignment method 4 2001
6880609 Overhead door locking operator 6 2003
6739372 Overhead door locking operator 12 2003
7397342 Operating system for a motorized barrier operator with a radio frequency energized light kit and/or switch and methods for programming the same 4 2004
* 2005/0184,854 Operating system for a motorized barrier operator with a radio frequency energized light kit and/or switch and methods for programming the same 5 2004
7367160 Door operator system 7 2004
7061197 Pivoting and barrier locking operator system 10 2005
7282883 Pivoting and barrier locking operator system 2 2006
* 2006/0290,307 PIVOTING AND BARRIER LOCKING OPERATOR SYSTEM 0 2006
7717155 Pivoting barrier operator system with integral cable storage drum and transfer assembly 1 2006
* 2007/0215,292 Pivoting barrier operator system with integral cable storage drum and transfer assembly 2 2006
* 7576504 Pivoting and barrier locking operator system 4 2006
7246647 Overhead door locking operator 4 2006
7607263 Door operator system 4 2008
 
REGAL BELOIT AMERICA, INC. (2)
7271560 Assembly for moving a barrier and method of controlling the same 1 2004
* 2006/0091,838 Assembly for moving a barrier and method of controlling the same 1 2004
 
MAGNA CLOSURES INC. (1)
* 9234377 Powered garage door opener 0 2014
 
RYTEC CORPORATION (1)
* 2013/0112,357 Overhead Roll-Up Door Having At Least Two Motors 1 2011
 
MITSUBISHI DENKI KABUSHIKI KAISHA (1)
* 2006/0144,643 Elevator door control unit 5 2006
 
OVERHEAD DOOR CORPORATION (2)
* 6118243 Door operator system 78 1999
6442897 Counterbalance system cable drum for sectional doors 9 2000
* Cited By Examiner