Fire escape – ladder – or scaffold – Self-sustaining – Scaffold horse
Reexamination Certificate
2011-08-09
2011-08-09
Mitchell, Katherine (Department: 3634)
Fire escape, ladder, or scaffold
Self-sustaining
Scaffold horse
C182S186400, C182S181100, C182S151000
Reexamination Certificate
active
07992683
ABSTRACT:
The multipurpose sawhorse end frame has a top section defining center and lateral slots for receiving 2″×4″ beams and central slots for 2″×12″ planks, a central section with center slots for receiving 2″×4″ beams and lateral support bars for supporting 2″×12″ planks, and a bottom section having feet for supporting the frame. A plurality of diagonal braces maintain rigidity of the end frame and provide the end frame with structural strength. Two or more end frames may be configured as a sawhorse, a scaffold, a workbench, a table, or other temporary construction accessory using scrap lumber and without fasteners. The multipurpose sawhorse end frame may be made from lightweight aluminum or other suitable material.
REFERENCES:
patent: 1101610 (1914-06-01), Allard
patent: 1272151 (1918-07-01), Torp
patent: 1340370 (1920-05-01), Boze
patent: 2272957 (1942-02-01), Walp
patent: 2400659 (1946-05-01), St-Mars
patent: 2416950 (1947-03-01), Pohrman
patent: 2634172 (1953-04-01), Hollidge
patent: 2897013 (1959-07-01), Delp
patent: 2911265 (1959-11-01), Hannah
patent: 3035660 (1962-05-01), Leon
patent: 3605945 (1971-09-01), Knuth
patent: 3763958 (1973-10-01), Hanson
patent: 3809183 (1974-05-01), Lowd et al.
patent: D245105 (1977-07-01), Rader
patent: 4124093 (1978-11-01), Breisch
patent: 4241808 (1980-12-01), Middleton et al.
patent: 4248326 (1981-02-01), Hansen et al.
patent: 4394005 (1983-07-01), Stewart
patent: 4433753 (1984-02-01), Watson
patent: 4570915 (1986-02-01), O'Hern
patent: 4700986 (1987-10-01), Davis et al.
patent: 5012893 (1991-05-01), Kraeger
patent: 5224753 (1993-07-01), Fox
patent: 5351730 (1994-10-01), Lewellen et al.
patent: 5427200 (1995-06-01), Yemini
patent: 5526897 (1996-06-01), Schiller
patent: 5582267 (1996-12-01), Bockoven et al.
patent: 5678655 (1997-10-01), Bearden
patent: 6007147 (1999-12-01), McCracken
patent: D493236 (2004-07-01), Frey
patent: 2004/0016600 (2004-01-01), Austin et al.
patent: 2008/0105492 (2008-05-01), Maxson
Bradford Candace L
Litman Richard C.
Mitchell Katherine
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