Patent US3747660A successfully refreshed from Google Patents.
US3747660A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ballasted vehicle tire and self-sealing thixotropic ballast composition therefor
Assignee: Individual
•
Filing: 1971-10-04
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Granted: 1973-07-24
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Expires: 1991-10-04
Abstract
Abstract Vehicle tire at least partially filled with leak-sealing, tire ballast composition in the form of an aqueous, thixotropic mixture consisting essentially of a gel-forming clay, and an alkali metal hexametaphosphate.
Inventors
- 👤 D Tibbals
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:52
CPC Classifications
B; B29; B29C; B29C73/00; B29C73/16; B29C73/163; B29D; B29D30/00; B29D30/06; B29D30/0681; B29D30/0685; B60; B60C; B60C5/00; B60C5/004; B60C5/005; B29D2030/0686; B29D2030/0698; B29L; B29L2030/00; Y; Y10; Y10T; Y10T152/00; Y10T152/10; Y10T152/10495; Y10T152/10666; Y10T152/10675; Y10T152/10684
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
25 words
A ballasted vehicle tire as described in claim 1, wherein said ballast material additionally includes a minor amount of a water-soluble salt of boric acid.
Claim 2
Dependent Claim
21 words
A ballasted vehicle tire as described in claim 2, wherein said water-soluble salt is an alkali metal salt of boric acid.
Claim 3
Dependent Claim
17 words
A ballasted vehicle tire as described in claim 3, wherein said boric acid salt is sodium tetraborate.
Claim 4
Dependent Claim
17 words
A ballasted vehicle tire as described in claim 1, wherein said alkaline metal hexametaphosphate is sodium hexametaphosphate.
Claim 5
Dependent Claim
41 words
A ballasted vehicle tire as described in claim 1, wherein said ballast material is composed of between about 5 and about 35 percent by weight of said clay and between about 10 and about 40 percent by weight of said sand.
Claim 6
Dependent Claim
19 words
A ballasted vehicle tire as described in claim 1, wherein said ballast material additionally includes a liquid antifreeze material.
Claim 7
Dependent Claim
22 words
A ballasted vehicle tire as described in claim 1, wherein said tire is substantially completely filled to capacity with said ballast material.
Claim 8
Dependent Claim
43 words
A leak-sealing tire ballast composition which comprises an aqueous, thixotropic mixture consisting essentially of between about 5 and about 35 percent of a gel-forming clay, between about 10 and about 40 percent sand, and between about 0.005 and about 0.01 percent sodium hexametaphosphate.
Claim 9
Dependent Claim
25 words
A tire ballast composition as defined in claim 9, wherein said mixture additionally contains a rust inhibiting amount of a water-soluble salt of boric acid.
Claim 10
Dependent Claim
16 words
A tire ballast composition as defined in claim 10, wherein said boric acid salt is borax.
Claim 11
Dependent Claim
29 words
A ballasted vehicle tire as described in claim 3, wherein said ballast material has a viscosity of between about 140 and about 260 centipoises, when measured at 70* F.
Claim 12
Dependent Claim
23 words
A tire ballast composition as defined in claim 9, wherein said composition contains between about 25 and about 35 percent by weight water.
Claim 13
Dependent Claim
29 words
A tire ballast composition as defined in claim 9, wherein said ballast composition has a viscosity of between about 140 and about 260 centipoises when measured at 70* F.
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) | 1976-07-23 | 1977-01-22 | 1977-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-23 | 1981-01-22 | 1981-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-23 | 1985-01-22 | 1985-07-24 | $7700.00 | Window Closed / Lapsed |