Patent
1975-09-24
1976-10-05
Shay, F. Barry
A63H 1700
Patent
active
039836622
ABSTRACT:
Single, soft, polymeric-foam impeller is rotated into engagement with objects to be picked up and flips them up a ramp into a collection container. The impeller is releasably connected to grippers and is reinforced by a tough polymeric sheet sandwiched between two layers of polymeric foam.
REFERENCES:
patent: 2772196 (1956-11-01), Pooley
patent: 3170832 (1965-02-01), Wilson et al.
King Stephen
Mattel Inc.
Mulcahy Robert W.
Shay F. Barry
Shirk Max E.
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