Patent US4606442A successfully refreshed from Google Patents.
US4606442A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Frictional damping assembly for suspension strut
Assignee: Individual
•
Filing: 1984-11-28
•
Granted: 1986-08-19
•
Expires: 2004-11-28
Abstract
Abstract The assembly includes three damper shoes that are guided by and wedged transversely between two wedge rings, one having three curved flats and the other having three planar flats that respectively contact conforming contact surfaces of the damper shoes. The assembly is particularly useful in a frictionally damped suspension strut.
Inventors
- 👤 H. Neil Paton
- 👤 Frank F. Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 05:37
CPC Classifications
B; B60; B60G; B60G13/00; B60G13/02; B60G13/04; F; F16; F16F; F16F7/00; F16F7/08; Y; Y10; Y10T; Y10T403/00; Y10T403/70; Y10T403/7047; Y10T403/7051; Y10T403/7052; Y10T403/7054
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
168 words
An improved frictional damping assembly suitable for use with a suspension strut, comprising: two spaced apart wedge rings and a plurality of damper wedges engaged between said wedge rings such that axial compression between said wedge rings will cause said damper wedges to move inwardly in generally radial directions with respect to a bore which extends through said wedge rings; each of said damper wedges having an anterior surface which fronts upon said bore, and which is bounded by two parallel side surfaces and two opposed wedge ring contact surfaces; at least one of said wedge ring contact protruding outwardly into and conforming to a radial groove formed by one of said wedge rings so that said anterior surface has two portions, a first portion bounded by said side surfaces and a second portion bounded by said one wedge ring contact surface, whereby the aggregate area of said anterior surfaces is equal to the the areas of said first portions together with the areas of said second portions.
Claim 2
Dependent Claim
168 words
An improved frictional damping assembly suitable for use with a suspension strut, comprising: two spaced apart wedge rings and a plurality of damper wedges engaged between said wedge rings such that axial compression between said wedge rings will cause said damper wedges to move inwardly in generally radial directions with respect to a bore which extends through said wedge rings; each of said damper wedges having an anterior surface which fronts upon said bore, and which is bounded by two parallel side surfaces and two opposed wedge ring contact surfaces; at least one of said wedge ring contact protruding outwardly into and conforming to a radial groove formed by one of said wedge rings so that said anterior surface has two portions, a first portion bounded by said side surfaces and a second portion bounded by said one wedge ring contact surface, whereby the aggregate area of said anterior surfaces is equal to the the areas of said first portions together with the areas of said second portions.
Claim 3
Dependent Claim
15 words
The damping assembly of claim 1, wherein said one wedge ring contact surface is curved.
References Cited (Backward Citations)
US2426661A
Cited
US2574788A
Cited
US2752149A
Cited
US2747696A
Cited
US2753177A
Cited
US2844366A
Cited
US3054478A
Cited
US4415146A
Cited
US4473216A
Cited
US4475722A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-08-18 | 1990-02-17 | 1990-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-08-18 | 1994-02-17 | 1994-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-08-18 | 1998-02-17 | 1998-08-19 | $7700.00 | Window Closed / Lapsed |