Trailing arm suspension with optimized I-beam

Land vehicles – Wheeled – Running gear

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C280S124157, C384S295000

Reexamination Certificate

active

07484744

ABSTRACT:
A suspension system for suspending a vehicle frame above a plurality of ground-engaging wheels includes a wheel-carrying axle comprising a first end a second end, and a pair of frame bracket assemblies each comprising a resiliently-bushed pivotable connection defining a pivot axis, wherein the frame bracket assemblies are operably coupled to opposite sides of the frame bracket, and wherein the resiliently-bushed pivotable connection comprises a substantially cylindrically-shaped bushing. The suspension system also includes a pair of trailing arms each comprising a first end operably coupled to the first end and the second end of the axle, respectively, and a second end comprising an aperture that receives the bushing of one of the frame bracket assemblies therein, wherein the aperture of the second end of each trailing arm is nonsymmetrical, thereby causing a nonsymmetrical compression of the bushing about the pivot axis. The suspension system also includes embodiments wherein the aperture of the second end of each trailing arm is nonuniform, thereby reducing rotation of the bushing with respect to the trailing arm, wherein a mating surface of each trailing arm operably coupled to the first and second end of the axle comprise a cavity, thereby reducing a localized stress transferred from the trailing arm to the axle, wherein the second end of each trailing arm further comprises a lip extending radially outward from the aperture and at least one engagement surface extending radially outward from the lip and adapted to abut a bushing-removal tool, as well as other improvements.

REFERENCES:
patent: 1679941 (1928-08-01), Morris
patent: 3107951 (1963-10-01), Palm
patent: 3332701 (1967-07-01), Masser
patent: 3904300 (1975-09-01), Hetmann
patent: 4415179 (1983-11-01), Marinelli
patent: 4858949 (1989-08-01), Wallace et al.
patent: 5203585 (1993-04-01), Pierce
patent: 5238262 (1993-08-01), Nunes
patent: 5275429 (1994-01-01), Bunker
patent: 5366237 (1994-11-01), Dilling et al.
patent: 5413374 (1995-05-01), Pierce
patent: 5836698 (1998-11-01), Richardson
patent: 5988672 (1999-11-01), VanDenberg
patent: 6241266 (2001-06-01), Smith et al.
patent: 6508482 (2003-01-01), Pierce et al.
patent: 6550795 (2003-04-01), Schlosser et al.
patent: 6827360 (2004-12-01), Chan et al.
patent: 7048288 (2006-05-01), Chan et al.
patent: 2002/0130480 (2002-09-01), VanDenberg
patent: 2004/0056446 (2004-03-01), Dudding et al.
patent: 2006/0033304 (2006-02-01), Saieg et al.
Neway Parts Catalog, Truck/Tractor and Trailer Suspension Components, 1997, pp. 2-22, 2-66, 2-88, 2-90, 2-98, 2-116.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Trailing arm suspension with optimized I-beam does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Trailing arm suspension with optimized I-beam, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Trailing arm suspension with optimized I-beam will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-4093594

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.