Patent US3869118A successfully refreshed from Google Patents.
US3869118A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for protecting coverings of inflatable tennis halls
Assignee: STEINHOF MARKETING CORP Ltd RE
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Filing: 1973-03-20
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Granted: 1975-03-04
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Expires: 1993-03-20
Abstract
Abstract This invention describes a device for protecting coverings of inflatable halls, particularly inflatable tennis halls (covered tennis courts) from mechanical damages, which coverings are provided on the inner hall side in the range in which hit tennis balls might possibly strike on the covering wall. The protective device is a resilient skirt mounted on stands, which extends at a spacing parallel to the inner hall wall and is of a height up to which tennis balls can be expected to impact in play an unprotected covering.
Inventors
- 👤 Vladimir Kranz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:29
CPC Classifications
E; E04; E04H; E04H3/00; E04H3/10; E04H3/14; E04H15/00; E04H15/20; E04H15/22
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
145 words
In combination with an inflatable structure to be used to cover a tennis court, said structure having substantially vertical side walls and a base; said base including said tennis court positioned thereon, said court being provided with end boundaries and side boundaries, said court being further providEd with a net structure positioned across the center thereof; in addition to said net structure, a plurality of protection devices which are positioned around at least some of the boundaries of said tennis court each of said protection devices comprising a plurality of stands mounted to said base at a distance spaced inwardly from said side walls toward said court and a resilient skirt mounted on said stands disconnected from and spaced from said side walls and substantially parallel thereto, said skirt having a height sufficient to ordinarily protect said side walls from tennis balls being hit thereagainst.
Claim 2
Dependent Claim
145 words
In combination with an inflatable structure to be used to cover a tennis court, said structure having substantially vertical side walls and a base; said base including said tennis court positioned thereon, said court being provided with end boundaries and side boundaries, said court being further providEd with a net structure positioned across the center thereof; in addition to said net structure, a plurality of protection devices which are positioned around at least some of the boundaries of said tennis court each of said protection devices comprising a plurality of stands mounted to said base at a distance spaced inwardly from said side walls toward said court and a resilient skirt mounted on said stands disconnected from and spaced from said side walls and substantially parallel thereto, said skirt having a height sufficient to ordinarily protect said side walls from tennis balls being hit thereagainst.
Claim 3
Dependent Claim
25 words
The combination as claimed by claim 1, in which said skirt mounted on said stands is arranged in front of each of said side walls.
Claim 4
Dependent Claim
16 words
The combination as claimed by claim 1, in which said skirt is suspended on the stands.
Claim 5
Dependent Claim
21 words
The combination as claimed by claim 1, in which the skirt is disposed behind the ends only of said tennis court.
Claim 6
Dependent Claim
14 words
The combination as claimed by claim 1, in which the skirt contacts said base.
Claim 7
Dependent Claim
20 words
The combination as claimed by claim 1, in which the height of the skirt is adjustable by adjusting the stands.
Claim 8
Dependent Claim
86 words
In combination with an inflatable structure to be used to cover a tennis court, said structure having substantially vertical side walls and a base; stands mounted to said base at a distance spaced inwardly from said side walls toward said court and a resilient skirt mounted on said stands disconnected from and spaced from said side walls and substantially parallel thereto, said skirt having a height sufficient to ordinarily protect said side walls from tennis balls being hit thereagainst, said skirt being a continuous material web.
Claim 9
Dependent Claim
86 words
In combination with an inflatable structure to be used to cover a tennis court, said structure having substantially vertical side walls and a base; stands mounted to said base at a distance spaced inwardly from said side walls toward said court and a resilient skirt mounted on said stands disconnected from and spaced from said side walls and substantially parallel thereto, said skirt having a height sufficient to ordinarily protect said side walls from tennis balls being hit thereagainst, said skirt being a continuous material web.
Claim 10
Dependent Claim
14 words
The combination as claimed by 7, in which the material web is a foil.
References Cited (Backward Citations)
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Cited
US1998454A
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US2159633A
Cited
US2740613A
Cited
US2872161A
Cited
US3740902A
Cited
US3710519A
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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) | 1978-03-03 | 1978-09-02 | 1979-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-03 | 1982-09-02 | 1983-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-03 | 1986-09-02 | 1987-03-04 | $7700.00 | Window Closed / Lapsed |