Door hanging jack

Details Door hanging jack Door hanging jack

1998-02-11

2000-02-08

Morgan, Eileen P.

Work holders

Plural holders to hold workpieces relative to each other

254131, B25B 120

Patent

active

060220082

ABSTRACT:
A door-hanging jack for adjustably supporting doors in door openings while installing doors in building structures. The jack structure has a generally triangular base with a pivoted rectangular framework secured to the top and has a structural angle shaped door-supporting member on one side overlying one edge of the triangular base. A threaded member at an apex of the triangle provides movement of the door supporting member through the interaction of a female threaded member having foot engageable handles.

REFERENCES:
patent: 604833 (1898-05-01), Muller
patent: 671554 (1901-04-01), Heisler
patent: 1681834 (1928-08-01), Arends
patent: 1833005 (1931-11-01), Staggers
patent: 2682076 (1954-06-01), Christensen
patent: 3642251 (1972-02-01), Niederholtmeyer
patent: 3871054 (1975-03-01), Schaefer
patent: 4043536 (1977-08-01), Almond
patent: 4712771 (1987-12-01), Donelly et al.
patent: 5294099 (1994-03-01), Dalfino
patent: 5814842 (1998-09-01), Muldoon et al.

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