US3929174A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for rejuvenating tennis balls and the like
Assignee: Individual
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Filing: 1973-11-09
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Granted: 1975-12-30
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Expires: 1993-11-09
Abstract
Abstract To rejuvenate a hollow elastic ball such as a tennis ball, an aerosol comprising a mixture of a carrier gas and a sealant is injected within the interior of a tennis ball to repressurize the ball and to seal any leaks in the ball.
Inventors
- 👤 Jr Luis L Isnardi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:16
CPC Classifications
A; A63; A63B; A63B39/00; A63B39/02; A63B39/027; A63B39/04
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
164 words
Apparatus for pressurizing and maintaining the air pressure within the interior of a tennis ball comprising: a. a sealed container; b. a sealant contained within said container; c. a liquid contained within said container which when exposed to reduced pressures is converted into a pressurized gaseous state; d. means for creating an aerosol composed of said gas and said sealant, said means including a valve assembly forming a part of said container for lowering the pressure within said container to cause said liquid to convert into the pressurized gaseous state; e. a conduit forming a part of said container for providing an outlet for said aerosol, said conduit having a sharpened tip to enable penetration thereof within the interior of a tennis ball to enable the aerosol to enter within the tennis ball to increase the pressure therein, and whereby said sealant acts to seal both the hole caused by said tip when removed as well as other holes in the tennis ball walls.
Claim 2
Dependent Claim
164 words
Apparatus for pressurizing and maintaining the air pressure within the interior of a tennis ball comprising: a. a sealed container; b. a sealant contained within said container; c. a liquid contained within said container which when exposed to reduced pressures is converted into a pressurized gaseous state; d. means for creating an aerosol composed of said gas and said sealant, said means including a valve assembly forming a part of said container for lowering the pressure within said container to cause said liquid to convert into the pressurized gaseous state; e. a conduit forming a part of said container for providing an outlet for said aerosol, said conduit having a sharpened tip to enable penetration thereof within the interior of a tennis ball to enable the aerosol to enter within the tennis ball to increase the pressure therein, and whereby said sealant acts to seal both the hole caused by said tip when removed as well as other holes in the tennis ball walls.
Claim 3
Dependent Claim
13 words
Apparatus as in claim 1 wherein said narrow conduit is a hollow needle.
Claim 4
Dependent Claim
14 words
Apparatus as in claim 1 wherein said sealant comprises a liquid rubber cement compound.
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) | 1978-12-29 | 1979-06-30 | 1979-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-29 | 1983-06-30 | 1983-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-29 | 1987-06-30 | 1987-12-30 | $7700.00 | Window Closed / Lapsed |