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US3763914A Expired / Lapsed US ⏱️ 0.0 years remaining

Tire trueing machine

Assignee: Individual
•
Filing: 1971-07-08
•
Granted: 1973-10-09
•
Expires: 1991-07-08
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Abstract

Abstract A device for trueing automotive tires by abrasively removing non-symmetrical, non-concentric irregularities or anomalies in the tread face of ''''out-of-round'''' tires. An electric motor, operatively mounted on a portable platform is mechanically coupled to a cutting assembly comprising a plurality of blades mounted within a cylindrical drum. The cutting assembly is arranged on the platform whereby the cutting blades will operatively engage the tread face to grind the eccentricities from the face of the tire as the tire is rotated by an external driving means. To prevent scattering of the material buffed or ground from the tread face the cutting assembly is partially enclosed in an accumulator housing adapted to catch and collect this residue. A pluraltity of apertures is formed in the rear portion of the housing which permits the air pressure built up in advance of the high speed rotation of the blades to flow rewardly through the housing carrying the material residue rewardly under the force of the resultant pressure differential. Attached to the aft portion of the platform is a substantially U-shaped handle which in combination with a series of rollers attached to the under portion of the platform permits movement of the device over the supporting surface. The cutting assembly is arranged on the platform whereby the cutting blades will operatively engage the tread face to grind the eccentricities from he face of the tire as the tire is rotated by an external driving means. To prevent scattering of the material buffed or ground from the tread face the cutting assembly is partially enclosed in an accumulator housing adapted to catch and collect this residue. A

Inventors

  • 👤 E Vance

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-09 08:01
CPC Classifications
B; B29; B29D; B29D30/00; B29D30/06; B29D30/0601; B29D30/0633; B24; B24B; B24B5/00; B24B5/36; B24B5/366; B29D2030/0634; B29D2030/0635; B29D2030/0638

Claims Analysis

Total Claims: 10
Claim 1
Independent Claim 166 words
A tire truing machine of the type designed to true nonsymmetrical, nonconcentric automotive tires, said machine comprising: platform means, cutting means arranged on said platform means to grind the eccentricities of a tread face of the tire and arranged to movably engage the tread face of the tire, said cutting means comprising a plurality of interrupted saw tooth blades arranged within a cylindrical drum, said blades fixed in parrallel relation relative to one another by the cooperative engagement of spacers arranged between each said blade and axially disposed retaining means which passes through each said blade and each said spacer, said retaining means fixed to opposite ends of said cylindrical drum, driving means mounted on said platform means operatively coupled to said cutting means to rotate said cutting means when said driving means is actuated, and accumulator means at least partially enclosing said cutting assembly to collect residue buffed from said tread face during the truing process, said accumulator means including means for removing said residue.
Claim 2
Dependent Claim 166 words
A tire truing machine of the type designed to true nonsymmetrical, nonconcentric automotive tires, said machine comprising: platform means, cutting means arranged on said platform means to grind the eccentricities of a tread face of the tire and arranged to movably engage the tread face of the tire, said cutting means comprising a plurality of interrupted saw tooth blades arranged within a cylindrical drum, said blades fixed in parrallel relation relative to one another by the cooperative engagement of spacers arranged between each said blade and axially disposed retaining means which passes through each said blade and each said spacer, said retaining means fixed to opposite ends of said cylindrical drum, driving means mounted on said platform means operatively coupled to said cutting means to rotate said cutting means when said driving means is actuated, and accumulator means at least partially enclosing said cutting assembly to collect residue buffed from said tread face during the truing process, said accumulator means including means for removing said residue.
Claim 3
Dependent Claim 69 words
A machine as in claim 1 wherein said cutting means comprises a plurality of interrupted saw-tooth blades arranged within a cylindrical drum, said blades fixed in parallel relation relative to one another by the cooperative engagement of spacers arranged between each said blade and axially disposed retaining means which passes through each said blade and each said spacer, said retaining means fixed to opposite ends of said cylindrical drum.
Claim 4
Dependent Claim 18 words
A machine as in claim 1 wherein said interrupted saw-tooth blades are angularly disposed relative to tread face.
Claim 5
Dependent Claim 26 words
A machine as in claim 1 wherein said cutting means includes at least one strength member mounted in supporting interconnecting relation to said interrupted saw-tooth blades.
Claim 6
Dependent Claim 23 words
A machine as in claim 1 further including support means attached to said platform means to move said machine over the supporting surface.
Claim 7
Dependent Claim 52 words
A machine as in claim 1 wherein said accumulator means comprises a housing including a plurality of apertures formed in the rearward portion of said housing whereby the air pressure generated in advance of the rapidly rotating cutting assembly flows rearwardly within said housing carrying the residue buffed from the tread face.
Claim 8
Dependent Claim 20 words
A machine as in claim 6 wherein said accumulator means comprises a substantially L-shaped housing which encloses said cutting means.
Claim 9
Dependent Claim 28 words
A machine as in claim 7 wherein the forward portion of said substantially L-shaped housing is open to permit operative engagement between said cutting means and said tire.
Claim 10
Dependent Claim 26 words
A machine as in claim 8 wherein a lip is formed on said opening of said housing to prevent residue blowback during operation of said machine.

References Cited (Backward Citations)

US2717640A Cited
US2897882A Cited
US2924268A Cited
US3081817A Cited
US3614973A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1976-10-08 1977-04-09 1977-10-09 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-10-08 1981-04-09 1981-10-09 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-10-08 1985-04-09 1985-10-09 $7700.00 Window Closed / Lapsed

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