Handling: hand and hoist-line implements – Hook – hoistline – or grab type – Load releasing means
Patent
1999-02-26
2000-07-18
Kramer, Dean J.
Handling: hand and hoist-line implements
Hook, hoistline, or grab type
Load releasing means
B66C 134
Patent
active
060896345
ABSTRACT:
A lifting device detachably interconnecting a lifting machine to a lug is disclosed, comprising a body having a longitudinal axis and a throughpassage having an axis transverse thereto, which throughpassage extends between first and second lateral sides of the body; a shackle connecting the body to the lifting machine; a lift pin having a head, a shaft extending therefrom along a major axis to an end, a bore extending through the shaft adjacent the end, substantially normal to the major axis, the shaft being insertable into the throughpassage to a fully inserted position, whereat a terminal section of the shaft containing the end and the bore projects from the first lateral side with the bore substantially vertical, the head projects from the second lateral side, and an intermediate section of the shaft between the terminal section and the head is positioned to provide lifting engagement of the lug; a stop pin having a head and a shaft extending from the head which is, when the lift pin is fully inserted, insertable into the bore to a locked position whereat the stop pin head provides interfering contact with the first lateral side, thereby preventing withdrawal of the lift pin; lift pin line and stop pin lines, connected to the lift pin and stop pin heads, respectively, for withdrawal of the lift pin and stop pin, and a guide member on the body for directing tensile force applied upon a distal end of the stop pin line to the stop pin head.
REFERENCES:
patent: 1751309 (1930-03-01), De Mone
patent: 3895836 (1975-07-01), Barnes
patent: 4453622 (1984-06-01), Betz
patent: 5108139 (1992-04-01), Leech
patent: 5152567 (1992-10-01), Raber
Blueprint drawing by Walters Inc. draftsman depicting Canron Lifting Device in public use circa 1986.
Blueprint drawing by Walters Inc. draftsman depicting Hepburn Lifting Device in public use circa 1992.
Blueprint drawing by walters Inc. draftsman depicting Canron Lifting Device in public use circa 1995.
Hofbauer Patrick J.
Kramer Dean J.
Walters Inc.
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