Implements or apparatus for applying pushing or pulling force – Vehicle attached jack – Screw actuated
Reexamination Certificate
2007-07-31
2007-07-31
Thomas, David B. (Department: 3723)
Implements or apparatus for applying pushing or pulling force
Vehicle attached jack
Screw actuated
C254S418000
Reexamination Certificate
active
10535866
ABSTRACT:
A stabilizing jack (10) for securement to the underside of a recreational vehicle. The jack includes a channel frame (25) formed with longitudinal trunnion flanges. A longitudinal screw (50) is rotatably mounted in the channel and drives a trunnion (38) that rides between the trunnion flanges (22a, 22b). A support leg (30) is rotatably connected to the trunnion. Rotation of the screw drives the trunnion towards an outboard end of the jack and lowers the support leg to its supporting position.
REFERENCES:
patent: 3565396 (1971-02-01), Spear
patent: 3826470 (1974-07-01), Spear
patent: 5205586 (1993-04-01), Tallman
patent: D349801 (1994-08-01), Few et al.
patent: 5348330 (1994-09-01), Few et al.
patent: D364259 (1995-11-01), Garceau
patent: 5501428 (1996-03-01), Garceau
patent: 6224102 (2001-05-01), Nebel
patent: 6494487 (2002-12-01), Nebel
“20″ and 24″ Telescopic Stabilizing Jack for Use on Travel Trailers and 5th Wheel Trailers,” BAL RV Products Group, 1993.
“20″, 24″ and 30″ “T” Type Stabilizing Jack for Use on Travel Trailers and 5th Wheel Trailers,” BAL RV Products Group, 1995.
“Light Trailer Stabilizing Jack for Use on Lightweight Travel Trailers and Tent Trailers,” BAL RV Products Group, Mar. 1995.
“20-8-T “T” Type Stabilizing Jack for Use on Travel Trailers and 5th Wheel Trailers,” BAL RV Products Group, 1993.
“Models 26150C through 26465U QTC Leveling Jacks for Use on Travel Trailers and 5th Wheel Trailers,” BAL RV Products Group, 1998.
Garceau Bernard F.
McDonald James D.
Smith Jon M.
Hahn Loeser & Parks LLP
Minns Michael H.
Norco Industries Inc.
Thomas David B.
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