Implements or apparatus for applying pushing or pulling force – Apparatus for hauling or hoisting load – including driven... – Device includes rotatably driven – cable contacting drum
Patent
1997-06-19
1998-10-13
Walsh, Donald P.
Implements or apparatus for applying pushing or pulling force
Apparatus for hauling or hoisting load, including driven...
Device includes rotatably driven, cable contacting drum
254288, 254327, 254332, B66D 126
Patent
active
058201084
ABSTRACT:
A monopod anchoring device for facilitating the entry or removal of a workman or equipment into a cavity. The device is adapted to engage an eyelet or the like that extends from a support structure located above the cavity and includes a head member and a leg member extending downwardly therefrom. Secured to one side of the head member is a pulley assembly. A safety device is secured to the leg member and includes a housing with a drum and a drum shaft mounted therein and a safety line that is adapted to be wrapped around the drum. The safety line is positioned over the pulley assembly and has one end secured to the drum and another end secured to the object to be raised or lowered. A hook extends upwardly from the head member in order to secure the monopod anchoring device to the eyelet. Secured to the end of the leg member distal the hook is a transverse cross member which has a pair of feet extending downwardly therefrom for frictionally engaging a support surface.
REFERENCES:
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patent: 4287963 (1981-09-01), Coxsey
patent: 4511123 (1985-04-01), Ostrobod
patent: 4589523 (1986-05-01), Olson et al.
patent: 4706939 (1987-11-01), Gagne
patent: 5147013 (1992-09-01), Olson et al.
patent: 5217084 (1993-06-01), Olson et al.
Lehrer Norman E.
Marcelo Emmanuel M.
Walsh Donald P.
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