US3603650A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wheel liners for track-type vehicle
Assignee: Individual
•
Filing: 1969-02-18
•
Granted: 1971-09-07
•
Expires: 1989-02-18
Abstract
Abstract An abrasion preventing liner for the track engaging surface of the wheels and rollers of an endless track-type vehicle, such as used in earthmoving, is provided to extend the useful life of the endless track. The liners are made of a material which is softer than that of the track and wheels and is fitted into grooves on the wheels so as to minimize loss of dimensional stability.
Inventors
- 👤 Robert L Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:12
CPC Classifications
B; B62; B62D; B62D55/00; B62D55/08; B62D55/14; B62D55/145; Y; Y10; Y10S; Y10S474/00; Y10S474/901
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
127 words
In an endless track vehicle including a drive sprocket, front idler roller and upper and lower track support rollers; each of said rollers including at least one axially extending cylindrical portion providing a cylindrical track-supporting surface, and at least one radially extending flange providing a radially extending track-aligning surface, said cylindrical portion and said radially extending flange on at least some of said rollers each including annular groove means recessed into each respective surface, and annular abrasion-preventing liner means inlaid in said groove means with the outer surface of the liner means substantially flush with said radially extending aligning surface and said cylindrical supporting surface, and operative to prevent abrasion between the endless tracks and the rollers so that wear on the track and roller is reduced.
Claim 2
Dependent Claim
127 words
In an endless track vehicle including a drive sprocket, front idler roller and upper and lower track support rollers; each of said rollers including at least one axially extending cylindrical portion providing a cylindrical track-supporting surface, and at least one radially extending flange providing a radially extending track-aligning surface, said cylindrical portion and said radially extending flange on at least some of said rollers each including annular groove means recessed into each respective surface, and annular abrasion-preventing liner means inlaid in said groove means with the outer surface of the liner means substantially flush with said radially extending aligning surface and said cylindrical supporting surface, and operative to prevent abrasion between the endless tracks and the rollers so that wear on the track and roller is reduced.
Claim 3
Dependent Claim
56 words
The improvements recited by claim 1 wherein: the portions of the abrasion-absorbing liners exposed by said grooves have the same width as the track rails; the wheels having surfaces adjacent to the track-engaging surfaces dimensioned to come into close proximity to the track rails and the wheels, so that the liners are protected from excessive wear.
Claim 4
Dependent Claim
29 words
The improvements of claim 1 wherein: the liners are made of a tough fibrous material which is softer than the material of the track and that of the wheels.
Claim 5
Dependent Claim
27 words
The improvements of claim 1 wherein: the liners are attached to the wheels by bonding the liner into the groove on the track-engaging surface of a wheel.
Claim 6
Dependent Claim
14 words
The improvements of claim 1 wherein: the liners are made of a resilient material.
Claim 7
Dependent Claim
29 words
The improvements of claim 5 wherein: the liner material is a member of the class consisting of natural rubber, Butyl polymers, Choroprene polymers, Organic polysulphides, and Dimethyl butadiene polymers.
Claim 8
Dependent Claim
14 words
The improvements of claim 5 wherein: the resilient liner material is reinforced by cords.
Claim 9
Dependent Claim
21 words
The improvements of claim 5 wherein: the liner means frictionally engages the surfaces of the wheel grooves and is easily replaced.
References Cited (Backward Citations)
US1317650A
Cited
US2003528A
Cited
DE720092C
Cited
US2374644A
Cited
US2363015A
Cited
US2599233A
Cited
US3148921A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-06 | 1975-03-08 | 1975-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-06 | 1979-03-08 | 1979-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-06 | 1983-03-08 | 1983-09-07 | $7700.00 | Window Closed / Lapsed |