Ralph Mercado Walker

US Patent:

7152550, Dec 26, 2006

Filed:

Jan 6, 2005

Appl. No.:

11/029514

Inventors:

Ralph Walker - Sacramento CA, US

International Classification:

A01K 5/02
A01K 7/02

US Classification:

119 515, 119 5111, 119 5113

Abstract:

An apparatus for automatically supplying both food and water to an animal according to a predefined schedule input into a timer wherein food is introduced into a food ring mounted on a rotatable carousel from a feed hopper and the rotation of the carousel being controlled by the timer. Water is introduced also at timed intervals through spray nozzles for several purposes, namely, to premoisten pelletized food prior to it being eaten and to clean the food ring subsequent to food consumption or removal of any leftover food, which food removal takes place by gravity. Water is also introduced into a drinking bowl for the pet to consume. Periodically, according to the input schedule, the water is automatically drained and subsequently the bowl is refilled.

US Patent:

44224095, Dec 27, 1983

Filed:

Dec 14, 1981

Appl. No.:

6/330444

Inventors:

Ralph Walker - Sacramento CA
David Bories - Fair Oaks CA

International Classification:

A01K 502

US Classification:

119 5111

Abstract:

Apparatus for automatically supplying food and water to an animal wherein food is introduced into a food ring mounted on a rotatable carousel, the rotation thereof being controlled by a timer. Water is introduced at timed intervals through spray nozzles for both cleaning the food ring, after the animal has eaten, and moisturizing the food prior to being eaten.

US Patent:

40754782, Feb 21, 1978

Filed:

Jun 3, 1976

Appl. No.:

5/692622

Inventors:

Ralph Eldridge Walker - Canoga Park CA

Assignee:

Litton Systems, Inc. - Beverly Hills CA

International Classification:

G01D 534

US Classification:

250231SE

Abstract:

An optical encoder design is disclosed which maintains a constant fixed air gap between the commutator and light sensors. The encoder head is mounted on a partially compressed hollow bellows or other spring member biasing snubber posts adjacent to the light sensors against tracks on the commutator. The height of the snubber posts above the light sensors defines the air gap.