Handling: hand and hoist-line implements – Hand bars and hand barrows – Ball retriever
Patent
1987-08-17
1988-12-27
Marbert, James B.
Handling: hand and hoist-line implements
Hand bars and hand barrows
Ball retriever
285 7, 285303, 15143B, 15144B, 16115, 114221R, B63B 2104
Patent
active
047936460
ABSTRACT:
By providing at least two elongated, telescopically engaged tube members which incorporate therein a spring biased, dual locking pin structure in combination with tube aligning and centralizing zones, a unique, adjustable handle and arm assembly is achieved which is capable of being easily moved into a plurality of alternate positions and securely engaged in each position, with unwanted dislodgement or lateral wobbling or movement being completely eliminated. In the preferred embodiment, the elongated telescopically engaged tube members are constructed with cooperating enlarged diameter zones and reduced diameter zones to prevent the unwanted disengagement of the tube members. In addition a plurality of alternate operative end units can be quickly and easily mounted to said elongated handle and arm assembly, with one of said end units comprising a unique mooring clasp and book hook construction.
REFERENCES:
patent: 2319992 (1943-05-01), Hubbard
patent: 2606050 (1952-08-01), Morris et al.
patent: 2980456 (1961-04-01), McMullin
patent: 3913515 (1975-10-01), Hernsjo et al.
patent: 4247216 (1981-01-01), Ponsini
Marbert James B.
Northeast Marine, Inc.
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