Patent US4954810A successfully refreshed from Google Patents.
US4954810A
Expired / Lapsed
US
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Garage door openers
Assignee: Individual
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Filing: 1990-01-22
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Granted: 1990-09-04
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Expires: 2010-01-22
Abstract
Abstract A signaling system is provided for an automated garage door including a transmitter rendered operative upon the opening of the door and a receiver stage which may be adhesively mounted on the remote sending unit by which door operation is signalled. The receiver stage includes a clock and an audio signal generator both of which are disabled by a reset switch. A bar is adhesively affixed to this reset switch and to the sending unit for common manual articulation of a door closing signal and a reset signal.
Inventors
- 👤 Theodore E. Llewellyn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:57
CPC Classifications
G; G08; G08B; G08B21/00; G08B21/18; E; E05; E05F; E05F15/00; E05F15/60; E05F15/603; E05F15/665; E05F15/668; E05F15/70; E05F15/77; E05Y; E05Y2900/00; E05Y2900/10; E05Y2900/106
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
130 words
In an automated door operating system characterized by a source of motive power connected to operate said door, a control system for controlling said source of motive power and a remote sending unit conformed to issue signals to said control system for directing the operation of said door, the improvement comprising: a radio frequency transmitter deployed adjacent said door and rendered operative to produce a first radio signal upon the opening of said door; and a first radio frequency receiver attached to said sending unit and including a clock rendered operative in response to the receipt of said first radio signal, an audio signal source concurrently actuated with said clock, and signaling means concurrently actuated with said sending unit for terminating the operation of said clock upon the actuation thereof.
Claim 2
Dependent Claim
130 words
In an automated door operating system characterized by a source of motive power connected to operate said door, a control system for controlling said source of motive power and a remote sending unit conformed to issue signals to said control system for directing the operation of said door, the improvement comprising: a radio frequency transmitter deployed adjacent said door and rendered operative to produce a first radio signal upon the opening of said door; and a first radio frequency receiver attached to said sending unit and including a clock rendered operative in response to the receipt of said first radio signal, an audio signal source concurrently actuated with said clock, and signaling means concurrently actuated with said sending unit for terminating the operation of said clock upon the actuation thereof.
Claim 3
Dependent Claim
20 words
Apparatus according to claim 1 wherein: said radio frequency transmitter includes a limit switch aligned for actuation by said door.
Claim 4
Dependent Claim
14 words
Apparatus according to claim 2 wherein: said limit switch is a normally closed switch.
Claim 5
Dependent Claim
40 words
Apparatus according to claim 2 further comprising: a second radio frequency receiver deployed in proximity of said door and conformed to respond to said first radio signal, said second receiver including a light rendered operative by said first radio signal.
Claim 6
Dependent Claim
18 words
Apparatus according to claim 1 wherein: said first radio frequency receiver is adhesively secured to said sending unit.
Claim 7
Dependent Claim
129 words
In a garage door operating system provided with a source of motive power connected to said door, a control system for directing the movement of said source of motive power in response to a first radio signal emitted by a portable sending unit, the improvement comprising: a radio frequency transmitter rendered operative upon the opening of said door for producing a second radio signal indicative thereof; a first radio frequency receiver secured to said sending unit and including a clock rendered operative by said second radio signal and a resetting circuit for resetting said clock rendered operative by a manual articulation of a reset switch; and means connected to said reset switch and deployed adjacent said sending unit for concurrent articulation of said reset switch and said sending unit.
Claim 8
Dependent Claim
129 words
In a garage door operating system provided with a source of motive power connected to said door, a control system for directing the movement of said source of motive power in response to a first radio signal emitted by a portable sending unit, the improvement comprising: a radio frequency transmitter rendered operative upon the opening of said door for producing a second radio signal indicative thereof; a first radio frequency receiver secured to said sending unit and including a clock rendered operative by said second radio signal and a resetting circuit for resetting said clock rendered operative by a manual articulation of a reset switch; and means connected to said reset switch and deployed adjacent said sending unit for concurrent articulation of said reset switch and said sending unit.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-09-03 | 1994-03-05 | 1994-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-09-03 | 1998-03-05 | 1998-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-09-03 | 2002-03-05 | 2002-09-04 | $7700.00 | Window Closed / Lapsed |