US4801082A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Security activated load control
Assignee: HARWOOD-MOODY ENT Inc PO BOX 4888 RICHMOND VA 23220
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Filing: 1988-04-06
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Granted: 1989-01-31
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Expires: 2008-04-06
Abstract
Abstract A power saving system for a hotel guest room has a keyboard operated control circuit that controls operation of an electrical load, such as a room air conditioner, and arms a door-window security circuit. When the guest enters the room, he disables the load control and security alarm system by actuation of a suitable contact on the keyboard. Prior to leaving the room, in order to secure it, he enables the security alarm system, and also the electrical load control, by making a suitable entry on the keyboard.
Inventors
- 👤 Charles Harwood, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 03:05
CPC Classifications
G; G08; G08B; G08B13/00; F; F24; F24F; F24F11/00; F24F11/30; F24F11/46; F24F11/50; F24F11/52; F24F11/88; G05; G05D; G05D23/00; G05D23/19; G05D23/1902; F24F11/32; F24F2110/00; F24F2110/10; F24F2120/00; F24F2120/10; F24F2140/00; F24F2140/50
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
117 words
A power saving system for conserving energy consumption by a primary electric load and which is responsive to room security activation, comprising: a key pad operated control circuit, first means connecting said control circuit to supply means tor said load when said control circuit is in a first condition, second means connecting said control circuit through a control means to said supply means for said load when said control circuit is in a second condition, said control means having timing means operative repetitively to connect said control circuit to said load for a predetermined time interval, and third means connecting said control circuit to room security switch means when said control circuit is in said second condition.
Claim 2
Dependent Claim
117 words
A power saving system for conserving energy consumption by a primary electric load and which is responsive to room security activation, comprising: a key pad operated control circuit, first means connecting said control circuit to supply means tor said load when said control circuit is in a first condition, second means connecting said control circuit through a control means to said supply means for said load when said control circuit is in a second condition, said control means having timing means operative repetitively to connect said control circuit to said load for a predetermined time interval, and third means connecting said control circuit to room security switch means when said control circuit is in said second condition.
Claim 3
Dependent Claim
16 words
The invention of claim 1, in which said second and third means have time delay means.
Claim 4
Dependent Claim
23 words
The invention of claim 1, and means operative to shut down operation of said electric load independently of said first and second means.
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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) | 1992-01-31 | 1992-08-01 | 1993-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-01-31 | 1996-08-01 | 1997-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-01-31 | 2000-08-01 | 2001-01-31 | $7700.00 | Window Closed / Lapsed |