Metal working – Means to assemble or disassemble – Puller or pusher means – contained force multiplying operator
Reexamination Certificate
2007-10-23
2007-10-23
Wilson, Lee D. (Department: 3723)
Metal working
Means to assemble or disassemble
Puller or pusher means, contained force multiplying operator
C029S225000, C029S227000
Reexamination Certificate
active
11185178
ABSTRACT:
An apparatus for replacing a shock absorber for another for automobiles, which supports and compresses a coil spring in a strut type suspension, in correspondence to various dimensions of shock absorbers is provided. The shock absorber replacement apparatus includes: a movable cart having a flat support table, wheels and a handle; an air cylinder installed on the support table; a fixed frame installed on a cylinder head of the air cylinder; a strut fixing unit which fixes and supports a lower portion of the strut onto the fixed frame; a rotatable semi-circular clip arm installed in an end of a piston rod of the air cylinder; a clip which is hung on the upper portion of a coil spring toward an end of the clip arm; and an air opening and closing pedal which opens and closes an air pressure to be introduced to upper and lower cylinder chambers of the air cylinder and thus descends and ascends the piston rod.
REFERENCES:
patent: 4752173 (1988-06-01), Fleming
patent: 5269501 (1993-12-01), Liegel et al.
patent: 5505578 (1996-04-01), Fuller
patent: 5944474 (1999-08-01), Cummins et al.
patent: 6364328 (2002-04-01), Stahler, Sr.
patent: 2006/0016059 (2006-01-01), Park
Ladas & Parry LLP
Wilson Lee D.
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