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US4256054A Expired / Lapsed US ⏱️ 0.0 years remaining

Pet feeder

Assignee: Individual
•
Filing: 1979-10-10
•
Granted: 1981-03-17
•
Expires: 1999-10-10
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Abstract

Abstract The pet feeder comprises a cabinet structure having a sloping internal partition dividing the cabinet into an upper bin for receiving food and a lower chamber. A metering cylinder is secured under an opening in the partition for receiving food for a pet. This cylinder has a circumferential slot intermediate its upper and lower ends and cooperates with upper and lower paddles vertically spaced on a common shaft and circumferentially displaced so that the lower paddle covers the bottom of the cylinder when the upper paddle is to one side of the cylinder. Rotation of the mounting shaft for the paddles causes the upper paddle to enter the circumferential slot and the lower paddle to leave the bottom of the cylinder so that the amount of food between the circumferential slot and bottom of the cylinder is metered downwardly into the chamber. A food tray is provided for receiving the food and also a water tray with a float valve is provided with access openings to the exterior of the cabinet. A master timer periodically operates a solenoid to move the paddles and thus meter the food.

Inventors

  • 👤 Kenneth H. Hitchcock

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-03 06:48
CPC Classifications
A; A01; A01K; A01K5/00; A01K5/02; A01K5/0291

Claims Analysis

Total Claims: 9
Claim 1
Independent Claim 465 words
A pet feeder including, in combination: (a) a cabinet having a top lid and a sloping partition dividing the interior of the cabinet into an upper bin and lower chamber, the lower central portion of said partition having an oblique opening, and the lower front wall of said cabinet having a food tray opening: (b) a vertical food metering cylinder having open upper and lower ends, the upper end being secured to the underside of said partition and cut at a bias to register with said oblique opening so that food placed in said bin by raising said lid fills said cylinder through its upper end opening, said cylinder having at least two vertically spaced circumferential slots intermediate its upper and lower ends each extending over at least 180°; (c) chopper means comprising a vertical shaft rotatably mounted in the interior portion of said chamber adjacent to said cylinder, and upper and lower circumferentially spaced paddles secured to said shaft at vertically spaced points such that the lower paddle covers said lower end opening of said cylinder and said upper paddle lies in the plane of one of said circmferential slots to one side of said cylinder, the circumferential spacing of said upper and lower paddles being such that when said shaft and paddles are rotated from a first to a second position, the lower paddle is swung out from under said cylinder and the upper paddle is swung into said one slot so that food filling said cylinder has a first measured amount chopped off by said upper paddle to fall through the lower end opening of said cylinder, said upper paddle preventing further food in said bin from falling through said cylinder, the securement point of said upper paddle to said shaft being releasable to enable vertical shifting thereof so that said upper paddle can be secured at a level to be received in the other of said two slots when moved from said first to said second position whereby a second different measured amount of food can be metered from said cylinder to fall through the lower end opening of said cylinder; (d) a food tray extending from the exterior of said cabinet partially within said food tray opening to underlie the lower end of said cylinder; (e) an electrically operable solenoid connected to move said shaft and paddles from said first to said second position when energized; (f) spring means for rotating said shaft and paddles together back to said first position from said second position when said solenoid is de-energized; and (g) timer means connected to said solenoid to energize said solenoid for a given period of time at desired set time intervals whereby a pet will have food available in said food tray for eating at said time intervals.
Claim 2
Dependent Claim 465 words
A pet feeder including, in combination: (a) a cabinet having a top lid and a sloping partition dividing the interior of the cabinet into an upper bin and lower chamber, the lower central portion of said partition having an oblique opening, and the lower front wall of said cabinet having a food tray opening: (b) a vertical food metering cylinder having open upper and lower ends, the upper end being secured to the underside of said partition and cut at a bias to register with said oblique opening so that food placed in said bin by raising said lid fills said cylinder through its upper end opening, said cylinder having at least two vertically spaced circumferential slots intermediate its upper and lower ends each extending over at least 180°; (c) chopper means comprising a vertical shaft rotatably mounted in the interior portion of said chamber adjacent to said cylinder, and upper and lower circumferentially spaced paddles secured to said shaft at vertically spaced points such that the lower paddle covers said lower end opening of said cylinder and said upper paddle lies in the plane of one of said circmferential slots to one side of said cylinder, the circumferential spacing of said upper and lower paddles being such that when said shaft and paddles are rotated from a first to a second position, the lower paddle is swung out from under said cylinder and the upper paddle is swung into said one slot so that food filling said cylinder has a first measured amount chopped off by said upper paddle to fall through the lower end opening of said cylinder, said upper paddle preventing further food in said bin from falling through said cylinder, the securement point of said upper paddle to said shaft being releasable to enable vertical shifting thereof so that said upper paddle can be secured at a level to be received in the other of said two slots when moved from said first to said second position whereby a second different measured amount of food can be metered from said cylinder to fall through the lower end opening of said cylinder; (d) a food tray extending from the exterior of said cabinet partially within said food tray opening to underlie the lower end of said cylinder; (e) an electrically operable solenoid connected to move said shaft and paddles from said first to said second position when energized; (f) spring means for rotating said shaft and paddles together back to said first position from said second position when said solenoid is de-energized; and (g) timer means connected to said solenoid to energize said solenoid for a given period of time at desired set time intervals whereby a pet will have food available in said food tray for eating at said time intervals.
Claim 3
Dependent Claim 36 words
A pet feeder according to claim 1, including an electric bell mounted on said cabinet and connected to said timer for operation whenever said solenoid is energized to thereby alert a pet that food is available.
Claim 4
Dependent Claim 80 words
A pet feeder according to claim 1, including an electrically operated water valve in said cabinet connected to said timer for operation thereby when said solenoid is operated; and a water hose and spray head in said housing for connection to an exterior water supply tap, said valve being in said hose line and said spray head being directed into said food tray so that food when dropped into said tray is simultaneously moistened by water from said spray head.
Claim 5
Dependent Claim 63 words
A pet feeder according to claim 1, in which a side of said chamber portion of said cabinet has an opening; a water tray exposed through said opening; and a float controlled valve secured to said cabinet adjacent to said water tray connected to an external water supply tap, said float control valve maintaining a given level of water in said water tray.
Claim 6
Dependent Claim 72 words
A pet feeder according to claim 1, in which said cabinet has a blue light and a yellow light, said blue light being on when electrical energy is applied to said timer; and switch means responsive to the amount of food in said bin being reduced to a given level for energizing said yellow light, whereby a user is apprised when the food in said bin is low and should be replaced.
Claim 7
Dependent Claim 75 words
A pet feeder according to claim 5, in which said means responsive to the amount of food in said bin comprises an arm in said bin pivoted to the upper central rear portion of said bin and extending forwardly to overlie food in said bin resting on said partition, downward movement of said arm as food is used up closing a switch to energize said yellow light when said arm reaches a predetermined lower position.
Claim 8
Dependent Claim 29 words
A pet feeder according to claim 4, including means for securing said food tray and water tray in said cabinet so that they cannot be removed by a pet.
Claim 9
Dependent Claim 36 words
A pet feed according to claim 1, including a push-button switch connected to bridge said timer and energize said solenoid directly when manually depressed so that extra meals may be provided by operation of said push-button.

References Cited (Backward Citations)

US166791A Cited
US534082A Cited
US785167A Cited
US1364003A Cited
US3196835A Cited
US3504654A Cited
US3561403A Cited
US3762373A Cited
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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) 1984-03-16 1984-09-15 1985-03-17 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1988-03-16 1988-09-15 1989-03-17 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1992-03-16 1992-09-15 1993-03-17 $7700.00 Window Closed / Lapsed

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