Patent US4430173A successfully refreshed from Google Patents.
US4141602A
Expired / Lapsed
US
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Track-type vehicle wheel having controlled impact resistance
Assignee: Caterpillar Inc
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Filing: 1977-10-11
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Granted: 1979-02-27
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Expires: 1997-10-11
Abstract
Abstract A wheel of a driven track of a track-type vehicle has a plurality of teeth connected to a hub. A plurality of annular springs is positioned in the openings of the teeth and actuated in response to associated plungers on the springs contacting a portion of the track. The springs controllably resist the impact forces of the track that are directed onto the wheel.
Inventors
- 👤 Roger L. Boggs
- 👤 John W. Sogge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 00:12
CPC Classifications
B; B62; B62D; B62D55/00; B62D55/08; B62D55/18; B62D55/20; B62D55/202; B62D55/096; B62D55/0963; Y; Y10; Y10S; Y10S474/00; Y10S474/901
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
174 words
A wheel of a track-type vehicle having a track, comprising: a hub; a plurality of arcuately spaced apart teeth each having an opening and being connected to said hub; a first annular spring assembly having a plurality of generally radially extending openings and being positioned in said openings of the teeth, each of said openings of the first spring assembly being positioned between adjacent teeth; a second annular spring assembly positioned in said openings of the teeth and forcibly urging against said first spring assembly; and a plurality of plungers, each extending through an associated opening of the first spring assembly and movable towards and from said hub and controllably biased outwardly by the second spring assembly, said teeth being spaced apart a distance sufficient for receiving a pin bushing of the associated track between adjacent teeth, said pin bushing contacting said first annular spring and a selected one of said plungers and biasing a portion of said second spring with said plunger a preselected distance toward said hub in response to said contact.
Claim 2
Dependent Claim
174 words
A wheel of a track-type vehicle having a track, comprising: a hub; a plurality of arcuately spaced apart teeth each having an opening and being connected to said hub; a first annular spring assembly having a plurality of generally radially extending openings and being positioned in said openings of the teeth, each of said openings of the first spring assembly being positioned between adjacent teeth; a second annular spring assembly positioned in said openings of the teeth and forcibly urging against said first spring assembly; and a plurality of plungers, each extending through an associated opening of the first spring assembly and movable towards and from said hub and controllably biased outwardly by the second spring assembly, said teeth being spaced apart a distance sufficient for receiving a pin bushing of the associated track between adjacent teeth, said pin bushing contacting said first annular spring and a selected one of said plungers and biasing a portion of said second spring with said plunger a preselected distance toward said hub in response to said contact.
Claim 3
Dependent Claim
21 words
An apparatus, as set forth in claim 1, wherein each plunger has first and second end portions of generally common diameter.
References Cited (Backward Citations)
US1046969A
Cited
US3889550A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-02-26 | 1982-08-28 | 1983-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-02-26 | 1986-08-28 | 1987-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-02-26 | 1990-08-28 | 1991-02-27 | $7700.00 | Window Closed / Lapsed |