US3648750A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vehicle tire repair body
Assignee: Stahlgruber Otto Gruber GmbH and Co
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Filing: 1969-01-31
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Granted: 1972-03-14
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Expires: 1989-01-31
Abstract
Abstract A repair body for damaged vehicle tires includes a stem portion and a patch portion. The stem is of uniform cross section over the largest part of its length and is larger than the canal-like injury which it fills. At the juncture or transition section of the stem and patch the stem is tapered or recessed. Additionally, the stem is made of a plurality of layers or varying hardness arranged spirally or concentrically about the stem axis.
Inventors
- 👤 Alois Felden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:25
CPC Classifications
B; B29; B29C; B29C73/00; B29C73/04; B29C73/06; B29C73/10; B29L; B29L2030/00; Y; Y10; Y10T; Y10T152/00; Y10T152/10; Y10T152/10882; Y10T152/10909
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
198 words
A tire body adapted to permanently seal tire injuries of a size exceeding nail punctures comprising, in combination therewith, a tire having an injury extending from its tread through its interior surface, said repair body comprising a stem for plugging the injury, a disc-like reinforced patch secured to said stem at one end of said stem fitting against said interior surface of the tire body to restore the strength of the tire body impaired by the injury, said stem being of uniform cross-section over the greater part of its length for forming a tight pressure fit with the considerably smaller cross-sectioned tire injury wall, said uniform cross-section portion of said stem filling substantially the entire injury, and said stem being of laminate structure with a plurality of soft rubber layers and a plurality of hard rubber layers alternatively arranged for replacing the missing tire tread and for compensating for excess pressure created by said stem being forced into a tight pressure fit with the tire injury wall to prevent the creation of hollow spaces between said patch and the tire body, and said stem tapering inwardly at the juncture with said patch to further compensate for excess pressure.
Claim 2
Dependent Claim
198 words
A tire body adapted to permanently seal tire injuries of a size exceeding nail punctures comprising, in combination therewith, a tire having an injury extending from its tread through its interior surface, said repair body comprising a stem for plugging the injury, a disc-like reinforced patch secured to said stem at one end of said stem fitting against said interior surface of the tire body to restore the strength of the tire body impaired by the injury, said stem being of uniform cross-section over the greater part of its length for forming a tight pressure fit with the considerably smaller cross-sectioned tire injury wall, said uniform cross-section portion of said stem filling substantially the entire injury, and said stem being of laminate structure with a plurality of soft rubber layers and a plurality of hard rubber layers alternatively arranged for replacing the missing tire tread and for compensating for excess pressure created by said stem being forced into a tight pressure fit with the tire injury wall to prevent the creation of hollow spaces between said patch and the tire body, and said stem tapering inwardly at the juncture with said patch to further compensate for excess pressure.
Claim 3
Dependent Claim
18 words
A repair body as set forth in claim 1 wherein said layers are spirally arranged about said axis.
Claim 4
Dependent Claim
18 words
A repair body as set forth in claim 1 wherein said layers are concentrically arranged about said axis.
Claim 5
Dependent Claim
27 words
A repair body as set forth in claim 1 wherein the end of said stem remote from said patch is conically tapered and includes tool receiving means.
Claim 6
Dependent Claim
20 words
A repair body as set forth in claim 1 wherein said layers are of vulcanized rubber having alternate Shore hardnesses.
Claim 7
Dependent Claim
19 words
A repair body as set forth in claim 5 wherein the alternate Shore hardnesses are 15-25 and 50-55 Shore.
Claim 8
Dependent Claim
19 words
A repair body as set forth in claim 1 wherein said layers consist of alternately vulcanized and unvulcanized rubber.
Claim 9
Dependent Claim
47 words
A repair body as set forth in claim 1 wherein said stem and said patch are manufactured separately and united together before use to form an integral repair body with the plane of juncture being spaced from the plane of the smallest cross-sectional area of said stem.
Claim 10
Dependent Claim
39 words
A repair body as set forth in claim 8 wherein the lower end of saiD stem is disc-shaped, and the endface of the disc with the area of connection to said patch being greater than said uniform cross-sectional area.
Claim 11
Dependent Claim
45 words
A repair body as set forth in claim 8 wherein said patch has a projection extending into said stem, the area of connection of said stem with said patch being at least as great as the diameter of said stem at said uniform cross-sectional area.
Claim 12
Dependent Claim
20 words
A repair body as set forth in claim 10 wherein said projection fits in a complementary recess in said stem.
Claim 13
Dependent Claim
36 words
A repair body as set forth in claim 11 wherein said reduced cross-section is produced by a hollow chamber formed by a groove between said projection and said stem recess in the proximity of said juncture.
Claim 14
Dependent Claim
23 words
A repair body as set forth in claim 11 wherein said projection has an annular rim engaging a corresponding depression in said stem.
Claim 15
Dependent Claim
36 words
A repair body as set forth in claim 13 wherein said reduced cross-section is produced by a hollow chamber formed by a groove between said projection and said stem recess in the proximity of said juncture.
Claim 16
Dependent Claim
19 words
A tire repair body as set forth in claim 1 wherein said layers are alternately vulcanized and unvulcanized rubber.
Claim 17
Dependent Claim
25 words
A repair body as set forth in claim 1, wherein the diameter of said stem at said uniform cross-section is greater than about 50 mm.
Claim 18
Dependent Claim
50 words
A repair body as set forth in claim 1 wherein a binding layer is provided on the exposed interior surface of said patch disposed in contact with the tire interior, said binding layer being curved and conforming to the tire curvature in the formation direction and from rim to rim.
Claim 19
Dependent Claim
180 words
A tire repair body adapted to permanently seal tire injuries of a size exceeding nail punctures comprising, in combination therewith, a tire having an injury extending from its tread through its interior surface, said repair body comprising a stem for plugging the injury, at least a portion of said stem being made of a hard rubber to replace the missing tire tread, a disc-like reinforced patch secured to said stem at one end of said stem fitting against said interior surface of the tire body to restore the strength of the tire body impaired by the injury, said stem being of uniform cross-section over the greater part of its length forming a tight pressure fit with the considerably smaller cross-sectioned tire injury wall, said uniform cross-section of said stem filling substantially the entire injury and said stem tapering inwardly at the juncture with said patch to compensate for excess pressure created by said stem being forced into a tight pressure fit with the tire injury wall to prevent the creation of hollow spaces between said patch and the tire body.
Claim 20
Dependent Claim
180 words
A tire repair body adapted to permanently seal tire injuries of a size exceeding nail punctures comprising, in combination therewith, a tire having an injury extending from its tread through its interior surface, said repair body comprising a stem for plugging the injury, at least a portion of said stem being made of a hard rubber to replace the missing tire tread, a disc-like reinforced patch secured to said stem at one end of said stem fitting against said interior surface of the tire body to restore the strength of the tire body impaired by the injury, said stem being of uniform cross-section over the greater part of its length forming a tight pressure fit with the considerably smaller cross-sectioned tire injury wall, said uniform cross-section of said stem filling substantially the entire injury and said stem tapering inwardly at the juncture with said patch to compensate for excess pressure created by said stem being forced into a tight pressure fit with the tire injury wall to prevent the creation of hollow spaces between said patch and the tire body.
Claim 21
Dependent Claim
30 words
A repair body as set forth in claim 18 including a rubber compensating ring inserted over said stem at said juncture, said ring being coated with a self-vulcanizing binding layer.
Claim 22
Dependent Claim
29 words
A repair body as set forth in claim 18 wherein said stem and said patch are manufactured separately and united together before use to form an integral repair body.
Claim 23
Dependent Claim
130 words
A tire repair body adapted to permanently seal tire injuries of a size exceeding nail-punctures comprising a stem for plugging the injury and a disc-like patch to restore the strength of the tire body impaired by the injury; said stem being over the greater part of its length, of a uniform cross-section, considerably larger than the corresponding cross-section of the injury, to ensure a tight pressure fit; pressure compensating means being provided to compensate excess pressure near the juncture where the stem merges into said patch; said compensating means comprising said stem being formed of a plurality of rubber-like layers symmetrically disposed about the axis of said stem and being of varying degrees of hardness; and said layers are of vulcanized rubber having alternate Shore hardnesses of 15-25 and 50-55.
Claim 24
Dependent Claim
130 words
A tire repair body adapted to permanently seal tire injuries of a size exceeding nail-punctures comprising a stem for plugging the injury and a disc-like patch to restore the strength of the tire body impaired by the injury; said stem being over the greater part of its length, of a uniform cross-section, considerably larger than the corresponding cross-section of the injury, to ensure a tight pressure fit; pressure compensating means being provided to compensate excess pressure near the juncture where the stem merges into said patch; said compensating means comprising said stem being formed of a plurality of rubber-like layers symmetrically disposed about the axis of said stem and being of varying degrees of hardness; and said layers are of vulcanized rubber having alternate Shore hardnesses of 15-25 and 50-55.
Claim 25
Dependent Claim
145 words
A tire repair body adapted to permanently seal tire injuries of a size exceeding nail-punctures comprising a stem for plugginG the injury and a disc-like patch to restore the strength of the tire body impaired by the injury; said stem being over the greater part of its length, of a uniform cross-section, considerably larger than the corresponding cross-section of the injury, to ensure a tight pressure fit; pressure compensating means being provided to compensate excess pressure near the juncture where the stem merges into said patch; said compensating means comprising a reduced cross-section of said stem near said junction, and said compensating means further comprising said stem being formed of a plurality of rubber-like layers symmetrically disposed about the axis of said stem and being of varying degrees of hardness; and said layers being of vulcanized rubber having alternate Shore hardness of 15-25 and 50-55.
Claim 26
Dependent Claim
145 words
A tire repair body adapted to permanently seal tire injuries of a size exceeding nail-punctures comprising a stem for plugginG the injury and a disc-like patch to restore the strength of the tire body impaired by the injury; said stem being over the greater part of its length, of a uniform cross-section, considerably larger than the corresponding cross-section of the injury, to ensure a tight pressure fit; pressure compensating means being provided to compensate excess pressure near the juncture where the stem merges into said patch; said compensating means comprising a reduced cross-section of said stem near said junction, and said compensating means further comprising said stem being formed of a plurality of rubber-like layers symmetrically disposed about the axis of said stem and being of varying degrees of hardness; and said layers being of vulcanized rubber having alternate Shore hardness of 15-25 and 50-55.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-03-14 | 1975-09-13 | 1976-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-14 | 1979-09-13 | 1980-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-14 | 1983-09-13 | 1984-03-14 | $7700.00 | Window Closed / Lapsed |