Patent US3849935A successfully refreshed from Google Patents.
US3849935A
Expired / Lapsed
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Impact-absorbing boundary structure for sports arenas
Assignee: LITTLE LEAGUE BASEBALL Inc
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Filing: 1973-04-16
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Granted: 1974-11-26
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Expires: 1993-04-16
Abstract
Abstract A boundary structure formed of a supple sheet secured to a series of spaced-apart support members, with the support member at one end being secured to a fixed structure such as a post or a wall by turnbuckles, and the support member at the other end of the sheet being secured to another fixed structure by springs under tension. Intermediate support members may be disposed between the end support members and connected by one or more tensioned ropes or cables to a fixed structure spaced rearwardly from the boundary structure, so as to dispose the boundary structure in a series of chordal segments.
Inventors
- 👤 C Hale
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:47
CPC Classifications
A; A63; A63B; A63B71/00; A63B71/02; A63B71/022; E; E01; E01F; E01F15/00; E01F15/02; E01F15/06; E01F15/065
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
154 words
An impact-absorbing boundary structure for preventing injury to a human body moving into contact with said boundary structure, comprising: 1. a supple boundary sheet; 2. first and second end support means connected to first and second ends of said boundary sheet, respectively, and at least one intermediate support means connected to said boundary sheet at a position intermediate of said first and second ends thereof; 3. at least first and second connecting means attached to said first and second end support means to enable connection of said boundary sheet to first and second end support structures, respectively; and 4. at least one non-rigid connecting means attached to said at least one intermediate support means for tensioned connection to an associated intermediate support structure spaced away from said boundary sheet to exert tension between said boundary sheet and the associated intermediate support structure and thereby dispose said boundary sheet in at least two chordal segments.
Claim 2
Dependent Claim
154 words
An impact-absorbing boundary structure for preventing injury to a human body moving into contact with said boundary structure, comprising: 1. a supple boundary sheet; 2. first and second end support means connected to first and second ends of said boundary sheet, respectively, and at least one intermediate support means connected to said boundary sheet at a position intermediate of said first and second ends thereof; 3. at least first and second connecting means attached to said first and second end support means to enable connection of said boundary sheet to first and second end support structures, respectively; and 4. at least one non-rigid connecting means attached to said at least one intermediate support means for tensioned connection to an associated intermediate support structure spaced away from said boundary sheet to exert tension between said boundary sheet and the associated intermediate support structure and thereby dispose said boundary sheet in at least two chordal segments.
Claim 3
Dependent Claim
40 words
first and second end support means connected to first and second ends of said boundary sheet, respectively, and at least one intermediate support means connected to said boundary sheet at a position intermediate of said first and second ends thereof;
Claim 4
Dependent Claim
40 words
first and second end support means connected to first and second ends of said boundary sheet, respectively, and at least one intermediate support means connected to said boundary sheet at a position intermediate of said first and second ends thereof;
Claim 5
Dependent Claim
14 words
A resilient boundary structure according to claim 1 wherein said boundary sheet is resilient.
Claim 6
Dependent Claim
14 words
A resilient boundary structure according to claim 1 wherein said boundary sheet is non-resilient.
Claim 7
Dependent Claim
32 words
at least first and second connecting means attached to said first and second end support means to enable connection of said boundary sheet to first and second end support structures, respectively; and
Claim 8
Dependent Claim
32 words
at least first and second connecting means attached to said first and second end support means to enable connection of said boundary sheet to first and second end support structures, respectively; and
Claim 9
Dependent Claim
55 words
at least one non-rigid connecting means attached to said at least one intermediate support means for tensioned connection to an associated intermediate support structure spaced away from said boundary sheet to exert tension between said boundary sheet and the associated intermediate support structure and thereby dispose said boundary sheet in at least two chordal segments.
Claim 10
Dependent Claim
55 words
at least one non-rigid connecting means attached to said at least one intermediate support means for tensioned connection to an associated intermediate support structure spaced away from said boundary sheet to exert tension between said boundary sheet and the associated intermediate support structure and thereby dispose said boundary sheet in at least two chordal segments.
Claim 11
Dependent Claim
52 words
A resilient boundary structure according to claim 1 wherein at least one of said first and second connecting means comprises a plurality of turnbuckles spaced apart along one of said first and second ends of said boundary sheet and each separately connected to one of said first and second end support members.
Claim 12
Dependent Claim
53 words
A resilient boundary structure according to claim 1 wherein at least one of said first and second connecting means comprises a plurality of spring members spaced apart along one of said first and second ends of said boundary sheet and each separately connected to one of said first and second end support members.
Claim 13
Dependent Claim
36 words
A resilient boundary structure according to claim 1 wherein said first and second end support means each comprises connected front and back sections between which said first and second ends of said boundary sheet are retained.
References Cited (Backward Citations)
US1549139A
Cited
US1711898A
Cited
US1913690A
Cited
GB312960A
Cited
US1913715A
Cited
US1922445A
Cited
US1903725A
Cited
US1922878A
Cited
US2675197A
Cited
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 |