US3891208A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Concealed spring anchoring means for trampolines and method of producing same
Assignee: NEW SIDLINGER PRODUCTS Co A CORP OF TX
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Filing: 1973-06-18
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Granted: 1975-06-24
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Expires: 1993-06-18
Abstract
Abstract The anchor bars which connect the springs with the flexible bed of a trampoline are attached to the margin of the bed by a series of short tapes which extend perpendicular to the margin and these short tapes are first attached to a second elongated tape which runs parallel with the margins of the bed and thereafter both tapes are secured to the bed so that if one of the short tapes becomes detached from the bed it will still remain attached to the elongated tape and prevent the spring from flying away. The tapes are also positioned to place the ends of the springs and the anchors under the bed and out of possible contact by an acrobat. The side frames of the trampoline frame are also strengthened to support a pad over the outer ends of the springs to prevent injury to an acrobat.
Inventors
- 👤 Bruce C Sidlinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:55
CPC Classifications
A; A63; A63B; A63B5/00; A63B5/11; A63B21/00; A63B21/02; A63B21/023
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
138 words
In a trampoline of the type comprising a flexible bed supported in horizontally stressed taut condition by a plurality of coil springs connected between an encircling metal frame means and the margins of the flexibLe bed by means of anchors whose respective ends are received in the loops of spaced pairs of tapes attached to the bed adjacent the margins thereof, the improvement which comprises said pairs of tapes being attached to the underside of said bed at locations spaced inwardly of the adjacent margin to position said anchors and the connected ends of the coil springs below the material comprising the bed and also inwardly of said margin, a distance sufficient for the margin of the bed to cover said anchors and the inner ends of said coils springs while exposing the remaining portions of the spring.
Claim 2
Dependent Claim
138 words
In a trampoline of the type comprising a flexible bed supported in horizontally stressed taut condition by a plurality of coil springs connected between an encircling metal frame means and the margins of the flexibLe bed by means of anchors whose respective ends are received in the loops of spaced pairs of tapes attached to the bed adjacent the margins thereof, the improvement which comprises said pairs of tapes being attached to the underside of said bed at locations spaced inwardly of the adjacent margin to position said anchors and the connected ends of the coil springs below the material comprising the bed and also inwardly of said margin, a distance sufficient for the margin of the bed to cover said anchors and the inner ends of said coils springs while exposing the remaining portions of the spring.
Claim 3
Dependent Claim
35 words
The invention according to claim 1 wherein said pairs of tapes are sewed to another elongated tape extending parallel with the marginal area of the bed, and said another tape is sewed to said bed.
Claim 4
Dependent Claim
17 words
The invention according to claim 2, wherein said pairs of tapes are also sewed to said bed.
Claim 5
Dependent Claim
147 words
In a trampoline of the type wherein a flexible bed is supported by an encircling frame by means of a series of coil spring means connected in stressed condition between a series of short tapes secured at spaced intervals along the marginal areas of the bed and said frame, the improvement which consists of a plurality of first securing means respectively connecting each of said short tapes only to an elongated second tape extending along a margin of the bed, and second securing means to attach the second tape extending along the marginal area of the trampoline bed on the underside thereof and thereby to cover and protect said first securing means from exposure to forces acting from above said trampoline bed whereby a failure of the second securing means at a given location will not result in the complete loss of spring support at that location.
Claim 6
Dependent Claim
147 words
In a trampoline of the type wherein a flexible bed is supported by an encircling frame by means of a series of coil spring means connected in stressed condition between a series of short tapes secured at spaced intervals along the marginal areas of the bed and said frame, the improvement which consists of a plurality of first securing means respectively connecting each of said short tapes only to an elongated second tape extending along a margin of the bed, and second securing means to attach the second tape extending along the marginal area of the trampoline bed on the underside thereof and thereby to cover and protect said first securing means from exposure to forces acting from above said trampoline bed whereby a failure of the second securing means at a given location will not result in the complete loss of spring support at that location.
Claim 7
Dependent Claim
25 words
The invention according to claim 4, wherein said second tape is sewed to said second tape and said second tape is sewed to said bed.
Claim 8
Dependent Claim
44 words
The invention according to claim 5, wherein said first tapes are comparatively short in length, the first tape being doubled over at least once to form a closed loop at one end, the first tapes being disposed at right angles to the second tape.
Claim 9
Dependent Claim
16 words
The invention according to claim 6, wherein said first tapes are also sewed to said bed.
Claim 10
Dependent Claim
19 words
The invention according to claim 7, wherein said first tapes are secured between the second tape and said bed.
Claim 11
Dependent Claim
51 words
Method of attaching spring anchors to the margin of a trampoline bed comprising the steps of preparing a length of flexible tape to receive a plurality of metal anchors at spaced locations along the length of the tape, and securing said prepared tape to said trampoline bed adjacent a margin thereof.
Claim 12
Dependent Claim
51 words
Method of attaching spring anchors to the margin of a trampoline bed comprising the steps of preparing a length of flexible tape to receive a plurality of metal anchors at spaced locations along the length of the tape, and securing said prepared tape to said trampoline bed adjacent a margin thereof.
Claim 13
Dependent Claim
18 words
The method according to claim 9 which includes the step of sewing said prepared tape to the bed.
Claim 14
Dependent Claim
33 words
The method according to claim 10 in which said preparing step includes the step of sewing a hem in the margin of the bed simultaneously with sewing said prepared tape to the bed.
Claim 15
Dependent Claim
34 words
The method according to claim 9 in which said preparing step includes the step of attaching a series of short lengths of doubled over tapes of said first tape at longitudinally spaced intervals thereof.
Claim 16
Dependent Claim
25 words
The method according to claim 12 in which said preparing step includes the step of sewing the short lengths of tape to the first tape.
Claim 17
Dependent Claim
33 words
The method according to claim 13 in which said preparing step includes the step of sewing the first tape to the bed after the short lengths have been sewed to the first tape.
Claim 18
Dependent Claim
45 words
The method according to claim 9 which includes the step of positioning said prepared tape inwardly from the edge of said adjacent margin a distance sufficient to allow the marginal area of the bed to cover said anchors and the ends of springs connected therewith.
Claim 19
Dependent Claim
32 words
The method according to claim 15 in which said preparing step includes the step of sewing short lengths of tape to the first tape at longitudinally spaced intervals to receive said anchors.
Claim 20
Dependent Claim
39 words
The method according to claim 16 in which said preparing step includeS the steps of doubling over the short lengths of tape to form loops for the receipt of said anchors, and sewing said first tape to the bed.
Claim 21
Dependent Claim
40 words
The method according to claim 17 in which said preparing step includes the step of arranging pairs of said short lengths of tape to receive the respective ends of substantially straight anchors parallel to the length of the first tape.
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) | 1978-06-23 | 1978-12-23 | 1979-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-23 | 1982-12-23 | 1983-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-23 | 1986-12-23 | 1987-06-24 | $7700.00 | Window Closed / Lapsed |