Ball joint
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 26, 1991
Grant Date -
N/A
app pub date -
Jan 15, 1991
filing date -
Jan 16, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A ball joint uses a single-piece ball seat of hard plastic that has high rigidity, high load durability and elasticity, to prevent premature fracture of the ball seat caused by manufacturing imperfections in the socket of the ball joint. A preload contact surface is resilient supported at the top of the ball seat to enable uniform distribution of preload of the ball to the socket. At assembly of the ball joint, a cylindrical lower portion of the ball seat cylinder is reshaped into an inwardly bowed surface to envelop the lower portion of the ball. A thin annular wall at the periphery of the preload contact surface of the ball seat defines a thin annular space between itself and the upper portion of the ball seat cylinder to provide the preload contact surface with expansion space. Additional elasticity can be built into the ball seat by providing slits at the junction of the preload contact surface periphery and the base of the thin annular wall.
First Claim
Other Claims data not available
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
- 13 Citation Count
- F16C Class
- 0 % this patent is cited more than
- 34 Age