Animal husbandry – Feeding device – Timer-controlled
Patent
1987-03-05
1988-08-23
Swiatek, Robert P.
Animal husbandry
Feeding device
Timer-controlled
248156, 248407, 119 23, A01K 3900, A45F 344
Patent
active
047652772
ABSTRACT:
A telescopic pole system for supporting a bird feeder, light system or the like comprises an elongated lower tubular pole component of circular cross-section, a ground sleeve for supporting the lower pole component, an upper tubular pole component of circular cross-section having an inner diameter greater than the outer diameter of the lower pole component, the lower pole component having an upper end of expanded cross-section for a snug, sliding fit within the upper pole component, and a collar secured to the lower end of the upper pole component having centering members for providing a snug, sliding fit over the lower pole component as the upper component is axially extended and retracted relative to the lower component, the collar having a pivotally-mounted retainer for locking the upper component on the lower component.
REFERENCES:
patent: 2560109 (1951-07-01), Hines
patent: 2691958 (1954-10-01), Lage
patent: 2891508 (1959-06-01), Bower
patent: 3066769 (1962-12-01), Pasquale
patent: 3301217 (1967-01-01), Prowinsky
patent: 3519234 (1970-07-01), Matson
patent: 4030451 (1977-06-01), Miller
Bailey Robert A.
Laurie Gordon H.
Delbridge Robert F.
Fors Arne I.
Swiatek Robert P.
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