US3827689A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gymnastic horizontal bar
Assignee: Permali Inc
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Filing: 1973-05-25
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Granted: 1974-08-06
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Expires: 1993-05-25
Abstract
Abstract A gymnastic horizontal bar is formed from thin wooden strips extending lengthwise of the bar side by side in parallel vertical planes, with laterally spaced reinforcing tapes sandwiched between some of the strips at both sides of the longitudinal axis of the bar. The tapes and wooden strips are laminated together to form a unitary bar of increased resistance to lateral impacts. The areas of the pair of wooden strips engaging the opposite sides of each tape are compressed by the tape so that the pair of strips engage each other above and below the tape, whereby the tapes are concealed and the bar has a continuous wooden surface.
Inventors
- 👤 G Hyde
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 20:08
CPC Classifications
A; A63; A63B; A63B3/00
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
212 words
A gymnastic horizontal bar that is substantially oval in cross section with its maximum width less than its depth, the bar comprising wooden strips extending lengthwise of the bar side-byside in parallel vertical planes, laterally spaced reinforcing tapes extending lengthwise of said strips at opposite sides of the longitudinal axis of the bar, each tape being sandwiched between an adjoining pair of said strips in engagement therewith and extending above and below said axis, the upper and lower edges of the tapes being spaced inwardly from the adjacent edges of said wooden strips, and adhesive material laminating said tapes and wooden strips together to form a unitary bar of increased resistance to lateral impacts, the areas of the pair of wooden strips engaging the opposite sides of each tape being compressed by the tape so that said pair of strips engage each other above and below the tape, whereby the tapes are concealed and the bar has a continuous wooden surface, the length and cross-sectional dimensions of said bar being sufficient for said bar to support the weight of an ordinary human being at such time as said human being is performing gymnastic exercises on said bar while substantially the entire length of said bar is spaced upwardly from a supporting surface.
Claim 2
Dependent Claim
212 words
A gymnastic horizontal bar that is substantially oval in cross section with its maximum width less than its depth, the bar comprising wooden strips extending lengthwise of the bar side-byside in parallel vertical planes, laterally spaced reinforcing tapes extending lengthwise of said strips at opposite sides of the longitudinal axis of the bar, each tape being sandwiched between an adjoining pair of said strips in engagement therewith and extending above and below said axis, the upper and lower edges of the tapes being spaced inwardly from the adjacent edges of said wooden strips, and adhesive material laminating said tapes and wooden strips together to form a unitary bar of increased resistance to lateral impacts, the areas of the pair of wooden strips engaging the opposite sides of each tape being compressed by the tape so that said pair of strips engage each other above and below the tape, whereby the tapes are concealed and the bar has a continuous wooden surface, the length and cross-sectional dimensions of said bar being sufficient for said bar to support the weight of an ordinary human being at such time as said human being is performing gymnastic exercises on said bar while substantially the entire length of said bar is spaced upwardly from a supporting surface.
Claim 3
Dependent Claim
61 words
A gymnastic horizontal bar according to claim 1, in which there is a plurality of said tapes at each side of said bar axis, the innermost tape at each side of the central vertical plane of the bar being spaced from that plane at least about a third of the distance between said plane and the adjacent side of the bar.
Claim 4
Dependent Claim
35 words
A gymnastic horizontal bar according to claim 1, in which each of said tapes is formed from synthetic resin reinforced with filaments, substantially all of which extend continuously from end to end of the tape.
Claim 5
Dependent Claim
19 words
A gymnastic horizontal bar according to claim 1, in which each of said tapes is about 0.010 inch thick.
Claim 6
Dependent Claim
55 words
A gymnastic horizontal bar according to claim 1, in which there is a plurality of said tapes at each side of said bar axis, each of said tapes being about 0.010 inch thick and formed from synthetic resin reinforced with glass filaments, substantially all of which extend continuously from end to end of the tape.
References Cited (Backward Citations)
GB305412A
Cited
CH231199A
Cited
US2596894A
Cited
DE1163208B
Cited
US3167882A
Cited
DE1816112A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-08-05 | 1978-02-04 | 1978-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-05 | 1982-02-04 | 1982-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-05 | 1986-02-04 | 1986-08-06 | $7700.00 | Window Closed / Lapsed |