Patent US3738893A successfully refreshed from Google Patents.
US3738893A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for positioning a tread band on a vehicle tire
Assignee: Individual
•
Filing: 1970-07-07
•
Granted: 1973-06-12
•
Expires: 1990-07-07
Abstract
Abstract An apparatus for positioning a closed thread band on a vehicle tire whereby the closed tread band is disposed around and spaced from a tire and there the space between the tread band and the tire is evacuated. The tread band is thereafter brought into contact with the tire and affixed thereto.
Inventors
- 👤 B Edler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:37
CPC Classifications
B; B29; B29D; B29D30/00; B29D30/06; B29D30/52; B29D30/54; B29D30/56; B29D30/58; B29D2030/523; B29D2030/582; B29D2030/585; Y; Y10; Y10S; Y10S156/00; Y10S156/909
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
244 words
An apparatus for use in retreading a worn vehicle tire, comprising: means defining a container having an opening therein and adapted to receive a worn vehicle tire mounted on a rim; mandrel means for holding said rim having said worn tire thereon in said container means and permitting rotation of said tire; means defining an annular, closed tread band; movable gripping means for supporting said closed tread band means in a radially, spaced relationship from the periphery of said worn tire; transport means adapted to hold said rim having a worn tire thereon for transporting said rim and worn tire from a position outside said container means to a position inside said container means and depositing same therein on said mandrel means; means for hermetically sealing said container means after said rim, said worn tire and said closed tread band have been placed therein; evacuating means for evacuating said container means and the space between said closed tread band means and said periphery of said worn tire; drive means for moving said gripping means toward said periphery of said worn tire after said container has been evacuated and to deposit said closed tread band means on said periphery of said worn tire to thereby prevent the entrapment of air between said tread band means and said periphery of said worn tire; and a driven roller adapted to press the periphery of said tread band means while rotating the tire in said container under vacuum.
Claim 2
Independent Claim
244 words
An apparatus for use in retreading a worn vehicle tire, comprising: means defining a container having an opening therein and adapted to receive a worn vehicle tire mounted on a rim; mandrel means for holding said rim having said worn tire thereon in said container means and permitting rotation of said tire; means defining an annular, closed tread band; movable gripping means for supporting said closed tread band means in a radially, spaced relationship from the periphery of said worn tire; transport means adapted to hold said rim having a worn tire thereon for transporting said rim and worn tire from a position outside said container means to a position inside said container means and depositing same therein on said mandrel means; means for hermetically sealing said container means after said rim, said worn tire and said closed tread band have been placed therein; evacuating means for evacuating said container means and the space between said closed tread band means and said periphery of said worn tire; drive means for moving said gripping means toward said periphery of said worn tire after said container has been evacuated and to deposit said closed tread band means on said periphery of said worn tire to thereby prevent the entrapment of air between said tread band means and said periphery of said worn tire; and a driven roller adapted to press the periphery of said tread band means while rotating the tire in said container under vacuum.
Claim 3
Dependent Claim
35 words
Apparatus according to claim 1, wherein said means for hermetically sealing said container comprises a lid adapted to fit over the opening in said container and seal means for sealing said lid to said container.
Claim 4
Dependent Claim
25 words
Apparatus according to claim 2, wherein said lid includes means for moving said lid vertically in relation to saId container between open and closed positions.
Claim 5
Dependent Claim
29 words
Apparatus according to claim 2, wherein said hermetically sealing means comprises an inflatable hose adapted, when inflated, to simultaneously sealingly engage said container adjacent said opening and said lid.
Claim 6
Dependent Claim
25 words
Apparatus according to claim 1, wherein said mandrel means includes rotatably mounted sleeve means, said sleeve means being adapted to support said rim for rotation.
Claim 7
Dependent Claim
17 words
Apparatus according to claim 1, wherein said rim is split into halves along a central radial plane.
Claim 8
Dependent Claim
57 words
Apparatus according to claim 1, wherein said driven roller is rotatably mounted on a pivotable lever arm in said container means, said lever arm being pivotable to cause an engagement of said roller with the periphery of said closed tread band means when said closed tread band has been deposited on said periphery of said worn tire.
Claim 9
Dependent Claim
22 words
Apparatus according to claim 1, wherein said drive means is adapted to drive said gripping means radially relative to said mandrel means.
Claim 10
Dependent Claim
27 words
Apparatus according to claim 8, wherein said drive means comprises at least one hydraulic cylinder movable radially of said mandrel means relative to a fixed piston element.
Claim 11
Dependent Claim
51 words
Apparatus according to claim 9, wherein said piston element is mounted on a hollow rod having openings therein which open outwardly adjacent said piston element on opposite sides thereof; and wherein said cylinder is slidable relative to said piston element by pressurizing one or the other ends of said hollow rod.
Claim 12
Dependent Claim
34 words
Apparatus according to claim 8, wherein said gripping means comprises a pair of hooks mounted for movement toward and away from each other generally transversely of said radial movement of said movable gripping means.
Claim 13
Dependent Claim
19 words
Apparatus according to claim 11, including means for moving said pair of hooks toward and away from each other.
Claim 14
Dependent Claim
40 words
Apparatus according to claim 12, wherein said moving means comprises a power cylinder having an extensible rod, one of said pair of hooks being mounted on said extensible rod for movement toward and away from the other of said hooks.
Claim 15
Dependent Claim
49 words
Apparatus according to claim 13, wherein said other of said pair of hooks is secured to said one hook by a linkage so that a movement of said one hook in one direction by said power cylinder will effect a movement of said other hook in the opposite direction.
Claim 16
Independent Claim
211 words
An apparatus for use in retreading a worn vehicle tire, comprising: means defining a container having an opening therein and adapted to receive a worn vehicle tire mounted on a rim; mandrel means for holding said rim having said worn tire thereon in said container means; means defining an annular, closed tread band; movable gripping means for supporting said closed tread band means in a radially spaced relationship from the periphery of said worn tire; transport means adapted to hold said rim having a worn tire thereon for transporting said rim and worn tire from a position outside said container means to a position inside said container means and depositing same therein on said mandrel means; means for hermetically sealing said container means having said rim, said worn tire and said closed tread band therein; evacuating means for evacuating said container means and the space between said closed tread band means and said periphery of said worn tire; and drive means for moving said gripping means toward said periphery of said worn tire in said evacuated container and to deposit said closed tread band means on said periphery of said worn tire to thereby prevent the entrapment of air between said tread band means and said periphery of said worn tire.
Claim 17
Independent Claim
211 words
An apparatus for use in retreading a worn vehicle tire, comprising: means defining a container having an opening therein and adapted to receive a worn vehicle tire mounted on a rim; mandrel means for holding said rim having said worn tire thereon in said container means; means defining an annular, closed tread band; movable gripping means for supporting said closed tread band means in a radially spaced relationship from the periphery of said worn tire; transport means adapted to hold said rim having a worn tire thereon for transporting said rim and worn tire from a position outside said container means to a position inside said container means and depositing same therein on said mandrel means; means for hermetically sealing said container means having said rim, said worn tire and said closed tread band therein; evacuating means for evacuating said container means and the space between said closed tread band means and said periphery of said worn tire; and drive means for moving said gripping means toward said periphery of said worn tire in said evacuated container and to deposit said closed tread band means on said periphery of said worn tire to thereby prevent the entrapment of air between said tread band means and said periphery of said worn tire.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-06-11 | 1976-12-11 | 1977-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-11 | 1980-12-11 | 1981-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-11 | 1984-12-11 | 1985-06-12 | $7700.00 | Window Closed / Lapsed |