Patent US3556194A successfully refreshed from Google Patents.
US3556194A
Expired / Lapsed
US
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Tire truing device
Assignee: Individual
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Filing: 1969-05-26
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Granted: 1971-01-19
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Expires: 1989-05-26
Abstract
Abstract A tire truing machine capable of use in truing a tire either on a car or off of a car has a removable carriage and lift that carries a bearing block into which a shaft supporting a tire may enter as the carriage and lift is lifted off the floor into its upright position and locked in place in the machine. The machine is operable from either side to facilitate truing of tires on either side of an automobile.
Inventors
- 👤 John Farrington
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:20
CPC Classifications
B; B29; B29D; B29D30/00; B29D30/06; B29D30/0601; B29D30/0633; B29B; B29B17/00; B29B17/02; B29B17/0206; B29D2030/0634; B29D2030/0635; B29D2030/0638; B29K; B29K2021/00; B29L; B29L2030/00; Y; Y02; Y02W; Y02W30/00; Y02W30/50; Y02W30/62; Y10; Y10S; Y10S451/00; Y10S451/92
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
171 words
A tire truing machine comprising a supporting frame having a partially open end; a removable carriage and lift hinged at its bottom near the bottom of said frame at the open end; means on said carriage and lift for rotatably holding the tire, said holding means including a shaft journaled in bearings located near the top of said carriage and lift and a means for affixing the tire on said shaft; means mounted on the supporting frame for rotating the tire while on either an elevated car or on said shaft when the carriage and lift is locked in place at the partially open end of the frame; means on said frame for locking said carriage and lift in tire truing position; means for cutting the tread of the tire, said cutting means being movably mounted on said frame; means for selectively moving the cutting means longitudinally toward and away from the tire; and means for selectively moving the cutting means laterally across the periphery of the tread of the tire.
Claim 2
Dependent Claim
171 words
A tire truing machine comprising a supporting frame having a partially open end; a removable carriage and lift hinged at its bottom near the bottom of said frame at the open end; means on said carriage and lift for rotatably holding the tire, said holding means including a shaft journaled in bearings located near the top of said carriage and lift and a means for affixing the tire on said shaft; means mounted on the supporting frame for rotating the tire while on either an elevated car or on said shaft when the carriage and lift is locked in place at the partially open end of the frame; means on said frame for locking said carriage and lift in tire truing position; means for cutting the tread of the tire, said cutting means being movably mounted on said frame; means for selectively moving the cutting means longitudinally toward and away from the tire; and means for selectively moving the cutting means laterally across the periphery of the tread of the tire.
Claim 3
Dependent Claim
40 words
A tire truing machine in accordance with claim 1 wherein said laterally moving means includes means for controlling the lateral movement of said cutting means from either side of said frame independently of any longitudinal movement of said cutting means.
Claim 4
Dependent Claim
108 words
A tire truing machine in accordance with claim 1 further including slots near the bottom of the frame at the partially open end of the frame, and wherein said carriage and lift comprises two parallel arms spaced apart a distance greater than the width of the largest tire to be trued, at least one spreader bar connected between the arms near the bottom of the arms to keep the arms in spaced parallelism, handles at the upper end of the arms, and pins near the bottom end of the arms that cooperate with the slots in the frame to removably hinge the carriage and lift on said frame.
Claim 5
Dependent Claim
129 words
A tire truing machine in accordance with claim 3 wherein the bearings for journaling the shaft include three bearings triangularly disposed with insufficient distance between the bearings along two sides of the triangle for passage of the shaft between the bearings and with sufficient distance between two bearings on the third side of the triangle for passage of the shaft between the two bearings, and wherein the two bottom bearings journal the shaft in a horizontal plane when the carriage and lift is in its locked position, and the two bearings removed from the cutter and the rotating means journal the shaft when the rotating means engages the tire to be trued with the side of the triangle through which the shaft may pass being toward the cutting means.
Claim 6
Dependent Claim
63 words
A tire truing machine in accordance with claim 1 wherein the carriage and lift comprises two parallel arms spaced apart a distance equal to the width of the supporting frame, at least one spreader bar connected between the arms near the bottom of the arms to keep the arms in spaced parallelism, and lift handles connected at the upper end of the arms.
Claim 7
Dependent Claim
148 words
A tire truing machine in accordance with claim 1 wherein the rotating means comprises a frame pivotally mounted on said supporting frame and carrying a rotatable shaft having a knurled portion for engaging the tread of the tire, a motor for driving the shaft, means for attaching a pair of springs on opposite sides of the frame, and a foot lever for locking said rotating means in its inoperative position away from the tire; and the machine further comprises a bent arm connected to the supporting frame for cooperating with the foot lever to lock the frame of the rotating means away from the tire; and a pair of springs attached between the supporting frame and the frame of said rotating means for urging the knurled portion of the shaft of the rotating means against the tread of the tire in the operative position of the rotating means.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-18 | 1974-07-20 | 1975-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-18 | 1978-07-20 | 1979-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-18 | 1982-07-20 | 1983-01-19 | $7700.00 | Window Closed / Lapsed |