US3595295A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tire tread trimming and truing apparatus
Assignee: SAF-TEE SIPING AND GROOVING Inc
•
Filing: 1969-04-11
•
Granted: 1971-07-27
•
Expires: 1989-04-11
Abstract
Abstract The apparatus is for rounding the tread of tires to give the tread a perfect annular configuration as well as a lateral arc which is the same entirely around the tread of the tire and includes a tire loading and unloading means, a tire-rotating and tread-flexing means for both flexing the tire before trimming and rotating the tire during trimming and guided means for trimming the tire tread to the desired configuration.
Inventors
- 👤 Kenneth D Curry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:45
CPC Classifications
B; B29; B29B; B29B17/00; B29B17/02; B29B17/0206; B29D; B29D30/00; B29D30/06; B29D30/0601; B29D30/0633; B29D2030/0634; B29D2030/0635; B29D2030/0639; B29K; B29K2021/00; B29L; B29L2030/00; Y; Y02; Y02W; Y02W30/00; Y02W30/50; Y02W30/62
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
176 words
An apparatus for trimming and truing a tire tread comprising a frame, means for rotatably and detachably supporting a wheelmounted tire on said frame, a driven roller positioned for engaging the tread of the tire, means for moving said roller to and from said tire tread, a cutter support slideably mounted on said frame, consisting of rods mounted on said frame, a pair of sleeves each slideably mounted on one of said rods, a second pair of rods extending between said first pair of rods and connected to said sleeves, a plate slideably mounted on said second pair of rods, a driven cutter carried by said plate, means for moving said cutter across said tire tread being connected to said plate, a bow-shaped guide slideably mounted on said first-mentioned rods, a roller carried by said plate, resilient means tending to bring said roller against said bow-shaped guide whereby said cutter will follow the shape of said bow-shaped guide and means for moving said bow-shaped guide and thus said cutter towards and away from said tire tread.
Claim 2
Independent Claim
176 words
An apparatus for trimming and truing a tire tread comprising a frame, means for rotatably and detachably supporting a wheelmounted tire on said frame, a driven roller positioned for engaging the tread of the tire, means for moving said roller to and from said tire tread, a cutter support slideably mounted on said frame, consisting of rods mounted on said frame, a pair of sleeves each slideably mounted on one of said rods, a second pair of rods extending between said first pair of rods and connected to said sleeves, a plate slideably mounted on said second pair of rods, a driven cutter carried by said plate, means for moving said cutter across said tire tread being connected to said plate, a bow-shaped guide slideably mounted on said first-mentioned rods, a roller carried by said plate, resilient means tending to bring said roller against said bow-shaped guide whereby said cutter will follow the shape of said bow-shaped guide and means for moving said bow-shaped guide and thus said cutter towards and away from said tire tread.
Claim 3
Independent Claim
154 words
An apparatus for timing and truing a tire tread comprising a frame, means for rotatably and detachably supporting a wheel-mounted tire on said frame, a driven roller positioned for engaging the tread of the tire, means for moving said roller to and from said tire tread, a support slideably mounted on said frame, a driven cutter carried by said support, means for moving said cutter to and from said tire tread, means for moving said cutter across said tire tread, a guide slIdeably mounted on said frame, a roller carried by said support and resilient means tending to brings said roller against said guide whereby said cutter will follow the shape of said guide, a pair of uprights pivotally connected to said frame, a hook carried by each upright and an axle supporting said tire wheel mountable on said hooks whereby said tire can be manually lifted by said uprights to said tire-supporting means.
Claim 4
Independent Claim
154 words
An apparatus for timing and truing a tire tread comprising a frame, means for rotatably and detachably supporting a wheel-mounted tire on said frame, a driven roller positioned for engaging the tread of the tire, means for moving said roller to and from said tire tread, a support slideably mounted on said frame, a driven cutter carried by said support, means for moving said cutter to and from said tire tread, means for moving said cutter across said tire tread, a guide slIdeably mounted on said frame, a roller carried by said support and resilient means tending to brings said roller against said guide whereby said cutter will follow the shape of said guide, a pair of uprights pivotally connected to said frame, a hook carried by each upright and an axle supporting said tire wheel mountable on said hooks whereby said tire can be manually lifted by said uprights to said tire-supporting means.
Claim 5
Independent Claim
169 words
An apparatus for trimming and truing a tire tread comprising a frame, means for rotatably and detachably supporting a wheel-mounted tire on said frame, consisting of a pair of support units at opposite sides on said frame, and a further roller pivotally mounted on said frame, an axle supporting said tire wheel rotatably and detachably mounted at each end on one of said plurality of rollers and retainable therebetween upon the pivoting of said further roller against said axle, a driven roller positioned for engaging the tread of the tire, means for moving said roller to and from said tire tread, a support slideably mounted on said frame, a driven cutter carried by said support, means for moving said cutter to and from said tire treads, means for moving said cutter across said tire tread, a guide slideably mounted on said frame, a roller carried by said support and resilient means tending to bring said roller against said guide whereby said cutter will follow the shape of said guide.
Claim 6
Independent Claim
169 words
An apparatus for trimming and truing a tire tread comprising a frame, means for rotatably and detachably supporting a wheel-mounted tire on said frame, consisting of a pair of support units at opposite sides on said frame, and a further roller pivotally mounted on said frame, an axle supporting said tire wheel rotatably and detachably mounted at each end on one of said plurality of rollers and retainable therebetween upon the pivoting of said further roller against said axle, a driven roller positioned for engaging the tread of the tire, means for moving said roller to and from said tire tread, a support slideably mounted on said frame, a driven cutter carried by said support, means for moving said cutter to and from said tire treads, means for moving said cutter across said tire tread, a guide slideably mounted on said frame, a roller carried by said support and resilient means tending to bring said roller against said guide whereby said cutter will follow the shape of said guide.
Claim 7
Independent Claim
175 words
An apparatus for trimming and truing a tire tread comprising a frame, means for rotatably and detachably supporting a wheel-mounted tire on said frame, a driven roller positioned for engaging the tread of the tire, means for moving said roller to and from said tire tread, consisting of a pair of bars pivotally connected at one end to said frame and having said driven roller carried at the other end thereof, a cylinder pivotally connected at one end to said frame, a piston rod slideably extending from said cylinder and pivotally connected to said bars and capable of moving said roller to and from the tire tread, a support slideably mounted on said frame, a driven cutter carried by said support, means for moving said cutter to and from said tire tread, means for moving said cutter across said tire tread, a guide slideably mounted on said frame, a roller carried by said support and resilient means tending to bring said roller against said guide whereby said cutter will follow the shape of said guide.
Claim 8
Independent Claim
175 words
An apparatus for trimming and truing a tire tread comprising a frame, means for rotatably and detachably supporting a wheel-mounted tire on said frame, a driven roller positioned for engaging the tread of the tire, means for moving said roller to and from said tire tread, consisting of a pair of bars pivotally connected at one end to said frame and having said driven roller carried at the other end thereof, a cylinder pivotally connected at one end to said frame, a piston rod slideably extending from said cylinder and pivotally connected to said bars and capable of moving said roller to and from the tire tread, a support slideably mounted on said frame, a driven cutter carried by said support, means for moving said cutter to and from said tire tread, means for moving said cutter across said tire tread, a guide slideably mounted on said frame, a roller carried by said support and resilient means tending to bring said roller against said guide whereby said cutter will follow the shape of said guide.
Claim 9
Dependent Claim
50 words
An apparatus for trimming and truing a tire tread as claimed in claim 1 wherein said means for moving said cutter across said tire consists of a nut carried by said plate and a screw rod rotatably carried by said first rods and being in threaded engagement with said nut.
Claim 10
Dependent Claim
51 words
An apparatus for trimming and truing a tire tread as claimed in claim 1, wherein a crossbar is slideably mounted on said first rods, said bow-shaped guide is adjustably and detachably mounted on said crossbar and said roller is carried by said plate at an opposite end thereof to said cutter.
Claim 11
Dependent Claim
37 words
An apparatus for trimming and truing a tire tread as claimed in claim 6 including means for moving said guide from said support against the tendency of said resilient means to move said roller against said guide.
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) | 1974-07-26 | 1975-01-25 | 1975-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-26 | 1979-01-25 | 1979-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-26 | 1983-01-25 | 1983-07-27 | $7700.00 | Window Closed / Lapsed |