US3877496A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pneumatic tire inflating agents
Assignee: Individual
•
Filing: 1973-06-26
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Granted: 1975-04-15
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Expires: 1993-06-26
Abstract
Abstract An inflating agent for inflating the gas containing chamber of a pneumatic tire. The agent is comprised of helium, hydrogen, or a mixture of helium and hydrogen together with either air, nitrogen, or flue gases.
Inventors
- 👤 Lawrence R Sperberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:24
CPC Classifications
B; B60; B60C; B60C5/00; B60C5/001
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
98 words
METHOD OF IMPROVING THE DURABLE LIFE OF A PNEUMATIC TIRE FOR USE ON AN EARTH BOUND VEHICLE COMPRISING THE STEPS OF: MOUNTING THE PNEUMATIC TIRE ON A WHEEL, ADDING TO THE TIRE CHAMBER OF THE PNEUMATIC TIRE A GASEOUS INFLATING AGENT; SAID AGENT BEING A MIXTURE OF AT LEAST TWO DIFFERENT GASES, ONE GAS BEING SELECTED FROM A FIRST GROUP OF GASEOUS COMPOUNDS, AND THE SECOND GAS BEING SELECTED FROM A SECOND GROUP OF GASEOUS COMPOUNDS; SAID FIRST GROUP CONSISTING ESSENTIALLY OF NITROGEN, AND HELIUM; SAID SECOND GROUP CONSISTING ESSENTIALLY OF NITROGEN CARBON DIOXIDE, FLUE GASES, AND AIR.
Claim 2
Dependent Claim
98 words
METHOD OF IMPROVING THE DURABLE LIFE OF A PNEUMATIC TIRE FOR USE ON AN EARTH BOUND VEHICLE COMPRISING THE STEPS OF: MOUNTING THE PNEUMATIC TIRE ON A WHEEL, ADDING TO THE TIRE CHAMBER OF THE PNEUMATIC TIRE A GASEOUS INFLATING AGENT; SAID AGENT BEING A MIXTURE OF AT LEAST TWO DIFFERENT GASES, ONE GAS BEING SELECTED FROM A FIRST GROUP OF GASEOUS COMPOUNDS, AND THE SECOND GAS BEING SELECTED FROM A SECOND GROUP OF GASEOUS COMPOUNDS; SAID FIRST GROUP CONSISTING ESSENTIALLY OF NITROGEN, AND HELIUM; SAID SECOND GROUP CONSISTING ESSENTIALLY OF NITROGEN CARBON DIOXIDE, FLUE GASES, AND AIR.
Claim 3
Dependent Claim
15 words
The method of claim 1 wherein the gas selected from the first group is helium.
Claim 4
Dependent Claim
15 words
The method of claim 1 wherein the gas selected from the second group is air.
Claim 5
Dependent Claim
16 words
The method of claim 1 wherein the gas selected from the second group is flue gases.
Claim 6
Dependent Claim
15 words
The method of claim 1 wherein the gas selected from the second group is nitrogen.
Claim 7
Dependent Claim
25 words
The method of claim 1 wherein the gas selected from the first group is Helium and the gas selected from the second group is air.
Claim 8
Dependent Claim
26 words
The method of claim 1 wherein the gas selected from the first group is helium and the gas selected from the second group is flue gases.
Claim 9
Dependent Claim
25 words
The method of claim 1 wherein the gas selected from the first grOup is helium and the gas selected from the second group is nitrogen.
Claim 10
Dependent Claim
31 words
The method of claim 1 whrein the inflating agent is a mixture of gases comprised of more than 50% of the first group and less than 50% of the second group.
Claim 11
Dependent Claim
31 words
The method of claim 1 wherein the inflating agent is a mixture of gases comprised of less than 50% of the first group and more than 50% of the second group.
Claim 12
Dependent Claim
61 words
Method of improving the durable life of a pneumatic tire for use on an earth vehicle comprising: mounting the tire upon a wheel, removing any gaseous material from the tire chamber, and inflating the tire chamber of the pneumatic tire with a gaseous inflating agent, said agent consisting essentially of a gas selected from the group comprised of helium and hydrogen.
Claim 13
Dependent Claim
61 words
Method of improving the durable life of a pneumatic tire for use on an earth vehicle comprising: mounting the tire upon a wheel, removing any gaseous material from the tire chamber, and inflating the tire chamber of the pneumatic tire with a gaseous inflating agent, said agent consisting essentially of a gas selected from the group comprised of helium and hydrogen.
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) | 1978-04-14 | 1978-10-14 | 1979-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-14 | 1982-10-14 | 1983-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-14 | 1986-10-14 | 1987-04-15 | $7700.00 | Window Closed / Lapsed |