Patent US3850217A successfully refreshed from Google Patents.
US3850217A
Expired / Lapsed
US
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Pneumatic tires
Assignee: Dunlop Ltd
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Filing: 1973-04-24
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Granted: 1974-11-26
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Expires: 1993-04-24
Abstract
Abstract A tire and wheel assembly in which one or more ingredients of a lubricant composition are enclosed separately from other ingredients, all the ingredients being enclosed in enclosing means which, on deflation of the tire, will release them into the inflation chamber of the assembly to form the composition.
Inventors
- 👤 R Edwards
- 👤 G Coulter
- 👤 A Dodd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:24
CPC Classifications
B; B29; B29D; B29D30/00; B29D30/06; B29D30/0681; B29D30/0685; B29C; B29C73/00; B29C73/16; B29C73/163; B29C73/22; B60; B60C; B60C17/00; B60C17/10; B60C3/00; B29D2030/0686; B29D2030/0697; C; C10; C10M; C10M2201/00; C10M2201/02; C10M2201/04; C10M2201/041; C10M2201/042; C10M2201/06; C10M2201/062; C10M2201/065; C10M2201/066; C10M2201/085; C10M2201/10; C10M2201/102; C10M2205/00; C10M2205/02; C10M2205/022; C10M2205/14; C10M2205/20; C10M2207/00; C10M2207/02; C10M2207/021; C10M2207/022; C10M2207/04; C10M2207/046; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/129; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286; C10M2207/34; C10M2207/40; C10M2207/402; C10M2207/404; C10M2209/00; C10M2209/02; C10M2209/08; C10M2209/10; C10M2209/103; C10M2209/104; C10M2209/105; C10M2209/107; C10M2209/108; C10M2209/12; C10M2211/00; C10M2211/04; C10M2211/044; C10M2211/06; C10M2213/00; C10M2213/02; C10M2213/06; C10M2213/062; C10M2215/00; C10M2215/10; C10M2215/102; C10M2227/00; C10M2227/02; C10M2227/04; C10M2227/08; C10M2227/081; C10M2229/00; C10M2229/02; C10M2229/04; C10M2229/05; C10N; C10N2010/00; C10N2010/02; C10N2040/00; C10N2040/30; C10N2040/32; C10N2040/34; C10N2040/36; C10N2040/38; C10N2040/40; C10N2040/42; C10N2040/44; C10N2040/50; C10N2050/00; C10N2050/04; Y; Y10; Y10T; Y10T152/00; Y10T152/10; Y10T152/10495; Y10T152/10666; Y10T152/10675
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
115 words
A PNEUMATIC TIRE AND WHEEL ASSEMBLY CAPABLE OF BEING RUN IN A DEFLATED CONDITION COMPRISING: A. A PNEUMATIC TIRE HAVING AN INTERIOR SURFACE AND MOUNTED UPON A WHEEL RIM TO DEFINE THEREWITH AN INFLATION CHAMBER; B. MEANS FOR LUBRICATING THE INTERIOR SURFACE OF THE TIRE WHEN OPERATED IN A DEFLATED CONDITION COMPRISING AT LEAST TWO INGREDIENTS OF A LUBRICANT COMPOSITION, AT LEAST ONE OF SAID INGREDIENTS BEING A LUBRICATING MATERIAL; C. ENCLOSING MEANS WITHIN SAID INFLATION CHAMBER FOR ENCLOSING SEPARATLEY FROM ONE ANOTHER SAID AT LEAST TWO INGREDIENTS; D. SAID ENCLOSING MEANS BEING ADAPTED TO RELEASE SAID AT LEAST TWO INGREDIENTS INTO THE INFLATION CHAMBER UPON DEFLATION OR SUBSTANTIAL LOSS OF INFLATION PRESSURE TO PERMIT
Claim 2
Dependent Claim
115 words
A PNEUMATIC TIRE AND WHEEL ASSEMBLY CAPABLE OF BEING RUN IN A DEFLATED CONDITION COMPRISING: A. A PNEUMATIC TIRE HAVING AN INTERIOR SURFACE AND MOUNTED UPON A WHEEL RIM TO DEFINE THEREWITH AN INFLATION CHAMBER; B. MEANS FOR LUBRICATING THE INTERIOR SURFACE OF THE TIRE WHEN OPERATED IN A DEFLATED CONDITION COMPRISING AT LEAST TWO INGREDIENTS OF A LUBRICANT COMPOSITION, AT LEAST ONE OF SAID INGREDIENTS BEING A LUBRICATING MATERIAL; C. ENCLOSING MEANS WITHIN SAID INFLATION CHAMBER FOR ENCLOSING SEPARATLEY FROM ONE ANOTHER SAID AT LEAST TWO INGREDIENTS; D. SAID ENCLOSING MEANS BEING ADAPTED TO RELEASE SAID AT LEAST TWO INGREDIENTS INTO THE INFLATION CHAMBER UPON DEFLATION OR SUBSTANTIAL LOSS OF INFLATION PRESSURE TO PERMIT
Claim 3
Dependent Claim
19 words
A pneumatic tire and wheel assembly according to claim 1 in which one ingredient includes a puncture sealing material.
Claim 4
Dependent Claim
26 words
A pneumatic tire and wheel assembly according to claim 2 in which the puncture sealing material is selected from chopped cotton wool, asbestos and synthetic fibers.
Claim 5
Dependent Claim
31 words
A pneumatic tire and wheel assembly according to claim 3 in which said fibers are used in conjunction with another solid material selected from graphite, mica, crumb rubber and polyethylene flakes.
Claim 6
Dependent Claim
44 words
A pneumatic tire and wheel assembly according to claim 1 in which one ingredient comprises a volatile liquid which has a boiling point sufficiently low to appreciably volatilize at the temperature generated by running of the tire in a deflated or partially deflated condition.
Claim 7
Dependent Claim
24 words
A pneumatic tire and wheel assembly according to claim 5 in which the volatile liquid has an initial boiling point between 60*C. and 150*C.
Claim 8
Dependent Claim
17 words
A pneumatic tire and wheel assembly according to claim 5 in which the volatile liquid is water.
Claim 9
Dependent Claim
32 words
A pneumatic tire and wheel assembly according to claim 7 in which the water contains a further volatile liquid to enhance the volatility and also reduce the freeze point of the water.
Claim 10
Dependent Claim
19 words
A pneumatic tire and wheel assembly according to claim 8 in which the further volatile liquid is ethyl alcohol.
Claim 11
Dependent Claim
50 words
A pneumatic tire and wheel assembly according to claim 1 in which the lubricant composition is an aqueous gel and the ingredients of the lubricant composition which are separately enclosed are a. water, optionally having various additives dissolved or dispersed therein, and b. a solid gelling agent for the water.
Claim 12
Dependent Claim
34 words
A pneumatic tire and wheel assembly according to claim 1 in which the lubricant composition includes two ingredients which react when brought together to produce a gas to at least partially reinflate the tire.
Claim 13
Dependent Claim
34 words
A pneumatic tire and wheel assembly according to claim 1 in which the wheel rim is a split rim and the enclosing means comprises a supporting band for the compartments extending around the rim.
Claim 14
Dependent Claim
33 words
A pneumatic tire and wheel assembly according to claim 1 in which the pneumatic tire is a radial ply pneumatic tire having an aspect ratio in the range 50 percent to 75 percent.
Claim 15
Dependent Claim
36 words
A pneumatic tire and wheel assembly according to claim 1 in whiCh the pneumatic tire has a tread which is wider than the width between flanges when the tire is inflated to its normal working pressure.
Claim 16
Dependent Claim
100 words
A pneumatic tire and wheel rim assembly capable of being driven in a deflated condition comprising: a. a pneumatic tire having an interior surface and mounted upon a wheel rim, to define an inflation chamber therewith; b. an enclosing means comprising at least two separate compartments containing different ingredients of a lubricant composition for lubricating the interior surfaces of the tire, each compartment being adapted to release the ingredient contained therein into the inflation chamber to form said lubricant composition through mixture of said ingredients upon substantial loss of inflation pressure or deflation of the tire and wheel rim assembly.
Claim 17
Dependent Claim
100 words
A pneumatic tire and wheel rim assembly capable of being driven in a deflated condition comprising: a. a pneumatic tire having an interior surface and mounted upon a wheel rim, to define an inflation chamber therewith; b. an enclosing means comprising at least two separate compartments containing different ingredients of a lubricant composition for lubricating the interior surfaces of the tire, each compartment being adapted to release the ingredient contained therein into the inflation chamber to form said lubricant composition through mixture of said ingredients upon substantial loss of inflation pressure or deflation of the tire and wheel rim assembly.
Claim 18
Dependent Claim
103 words
A pneumatic tire capable of being driven deflated comprising: a. an interior surface in the tire; b. means for lubricating the interior surface when the tire is driven deflated comprising at least two ingredients of a lubricant composition, at least one of said ingredients being a lubricating material, c. enclosing means attached to said interior surface for enclosing separately from one another said at least two ingredients; d. said enclosing means being adapted to release said at least two ingredients onto the interior surface upon deflation of the tire to permit said at least two ingredients to mix to form said lubricant composition.
Claim 19
Dependent Claim
103 words
A pneumatic tire capable of being driven deflated comprising: a. an interior surface in the tire; b. means for lubricating the interior surface when the tire is driven deflated comprising at least two ingredients of a lubricant composition, at least one of said ingredients being a lubricating material, c. enclosing means attached to said interior surface for enclosing separately from one another said at least two ingredients; d. said enclosing means being adapted to release said at least two ingredients onto the interior surface upon deflation of the tire to permit said at least two ingredients to mix to form said lubricant composition.
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) | 1977-11-25 | 1978-05-27 | 1978-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-25 | 1982-05-27 | 1982-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-25 | 1986-05-27 | 1986-11-26 | $7700.00 | Window Closed / Lapsed |