Collapsible grappling hook

Details Collapsible grappling hook Collapsible grappling hook

1998-10-21

2000-05-16

Kramer, Dean J.

Handling: hand and hoist-line implements

Hook, hoistline, or grab type

Resilient suspension means

294 11, B66C 110

Patent

active

060626216

ABSTRACT:
A collapsible grappling hook comprising a shaft having a first end and a second end and a raised shoulder portion located between the first end and the second end a spring having a first end and a second end, the spring attached to the shaft such that the first end contacts the raised shoulder portion, a fixed grapple attached to the shaft including at least one extending fluke and a movable grapple slidable attached to the shaft between the fixed grapple and the raised shoulder, the movable grapple including at least one extending fluke, wherein the movable grapple is movable from a collapsed position such that the movable grapple is generally parallel to the to fixed grapple to an open position such that the movable grapple is generally perpendicular to the fixed grapple whereby the spring applies a sufficient force from the second end of the spring to the movable grapple to lock the grapple in the open position.

REFERENCES:
patent: 721663 (1903-03-01), Brooke
patent: 1978844 (1934-10-01), McLeland
patent: 2796844 (1957-06-01), March
patent: 3092412 (1963-06-01), Drake
patent: 4108484 (1978-08-01), Malroit
patent: 4145835 (1979-03-01), Snow
patent: 4297963 (1981-11-01), Beacom
patent: 4596202 (1986-06-01), Brewster
patent: 5092261 (1992-03-01), Bertrand
patent: 5388877 (1995-02-01), Wenk
patent: 5613721 (1997-03-01), Mullins

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