Back packable portable unit

Details Back packable portable unit Back packable portable unit

1982-02-16

1988-11-08

Peters, Jr., Joseph F.

Traversing hoists

Having counterweight or counterbalancing means

224153, 212178, 212182, 212187, 212255, 212263, 212264, 212265, B66C 2372, B66C 2306, A45F 402

Patent

active

047829621

ABSTRACT:
A portable, backpackable crane lift involving a retractable boom, boom cable, winch and winch cable mounted to a wheeled frame with extendable axles all which fold into a compact unit. A shoulder harness apparatus which attaches to the folded unit for carrying converts to a ballast carrying extension of the frame during operation. Such a lift is readily carried up a ladder for use on flat roofs to raise and place air conditioning heat exchangers and the like.

REFERENCES:
patent: 2569821 (1951-10-01), Maxeiner
patent: 3978989 (1976-09-01), Avila, Jr.
patent: 4135627 (1979-01-01), McInerney
patent: 4310098 (1982-01-01), Dirksen

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