Patent US4686504A successfully refreshed from Google Patents.
US4686504A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pet operable annunciator
Assignee: Individual
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Filing: 1986-08-07
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Granted: 1987-08-11
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Expires: 2006-08-07
Abstract
Abstract An annunciator or signal which can be mounted adjacent a door and actuated by a pet to signal its desire to be let in or out includes a housing with an opening in the lower front thereof and with a lever projecting outwardly through the opening. When a pet presses the lever, switch within the housing is closed to actuate a chime or the like.
Inventors
- 👤 Richard W. German
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 04:44
CPC Classifications
A; A01; A01K; A01K1/00; A01K1/02; A01K1/035; A01K15/00; A01K15/02; G; G08; G08B; G08B3/00; G08B3/10
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
180 words
A pet actuatable annunciator adapted for installation adjacent a door comprising: a housing having top, bottom, side, front and rear walls, said front wall being shorter than said rear wall and said bottom wall being shorter than said top wall thereby providing an opening at the lower front of said housing; a shaft carried by said side walls and extending vertically across the interior of said housing parallel to said front wall thereof, said shaft being located inwardly of and below the upper edge of said opening; a lever mounted on said shaft for pivotal movement relative to said housing and having a forward end projecting outwardly through said opening and a rear end extending rearwardly of said shaft; a counterweight carried by said rear end of said lever; a switch operated by said lever, said switch being open when said lever is in its normal position and closing upon depression of said forward end thereof; a battery within said housing; and an electrically operated annunciator mounted on said housing and connected in series with said battery and said switch.
Claim 2
Dependent Claim
180 words
A pet actuatable annunciator adapted for installation adjacent a door comprising: a housing having top, bottom, side, front and rear walls, said front wall being shorter than said rear wall and said bottom wall being shorter than said top wall thereby providing an opening at the lower front of said housing; a shaft carried by said side walls and extending vertically across the interior of said housing parallel to said front wall thereof, said shaft being located inwardly of and below the upper edge of said opening; a lever mounted on said shaft for pivotal movement relative to said housing and having a forward end projecting outwardly through said opening and a rear end extending rearwardly of said shaft; a counterweight carried by said rear end of said lever; a switch operated by said lever, said switch being open when said lever is in its normal position and closing upon depression of said forward end thereof; a battery within said housing; and an electrically operated annunciator mounted on said housing and connected in series with said battery and said switch.
Claim 3
Dependent Claim
14 words
The pet actuatable annunciator of claim 1 wherein said switch comprises a mercury switch.
Claim 4
Dependent Claim
20 words
The pet actuatable annunciator of claim 2 wherein said mercury switch is mounted on said rear end of said lever.
Claim 5
Dependent Claim
29 words
The pet actuatable annunciator of claim 1 further including means carried by said rear wall of said housing for detachably securing said housing to a surface adjacent said door.
Claim 6
Dependent Claim
28 words
The pet actuatable annunciator of claim 1 further including a second housing, shaft, lever, counterweight and switch, said second switch being connected in parallel with said firstmentioned switch.
Claim 7
Dependent Claim
26 words
The pet actuatable annunciator of claim 1 further characterized in that said housing and said lever are provided with surface ornamentation readily discernable by the pet.
References Cited (Backward Citations)
US4400696A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-08-10 | 1991-02-09 | 1991-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-08-10 | 1995-02-09 | 1995-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-08-10 | 1999-02-09 | 1999-08-11 | $7700.00 | Window Closed / Lapsed |