Patent US3638618A successfully refreshed from Google Patents.
US3638618A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic pet feeder
Assignee: Individual
•
Filing: 1970-07-31
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Granted: 1972-02-01
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Expires: 1990-07-31
Abstract
Abstract An automatic pet feeder controlled by a timer which releases a door to a feed compartment and simultaneously rings a bell to signal the pet that the door has been opened. A second door is released by the same timer at a later time for a second feeding also with a simultaneous ringing of the bell. A supply of water is released by the same timer simultaneously with the opening of one of the doors with the water supply being fed into one of the feeder dishes to moisten dry pet food at the time of its being made available to the pet.
Inventors
- 👤 John Strother
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:14
CPC Classifications
A; A01; A01K; A01K5/00; A01K5/02; A01K5/0291
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
162 words
An automatic pet feeder comprising a box for enclosing and holding a dish of pet food, said box having an access opening to said dish, a door hingedly secured to said box normally closing said access opening, means spring biasing said door to open position inwardly of said box, a solenoid latch normally securing said door in closed position in said access opening, a water tank on said box, a water conduit extending from said tank to said dish, a solenoid valve normally closing said conduit, an audible electric signal on said box for indicating to a pet that the door is open, and an electric timer on said box to energize said solenoid latch to release said door, to simultaneously energize said solenoid valve to release water to flow from said tank to said dish and to simultaneously actuate said electric signal all at a predetermined preset time, said spring biasing means holding said door in open position until manually closed.
Claim 2
Dependent Claim
162 words
An automatic pet feeder comprising a box for enclosing and holding a dish of pet food, said box having an access opening to said dish, a door hingedly secured to said box normally closing said access opening, means spring biasing said door to open position inwardly of said box, a solenoid latch normally securing said door in closed position in said access opening, a water tank on said box, a water conduit extending from said tank to said dish, a solenoid valve normally closing said conduit, an audible electric signal on said box for indicating to a pet that the door is open, and an electric timer on said box to energize said solenoid latch to release said door, to simultaneously energize said solenoid valve to release water to flow from said tank to said dish and to simultaneously actuate said electric signal all at a predetermined preset time, said spring biasing means holding said door in open position until manually closed.
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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) | 1975-01-31 | 1975-08-02 | 1976-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-31 | 1979-08-02 | 1980-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-31 | 1983-08-02 | 1984-02-01 | $7700.00 | Window Closed / Lapsed |