US3580571A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chain swing
Assignee: Blazon Inc
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Filing: 1969-01-27
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Granted: 1971-05-25
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Expires: 1989-01-27
Abstract
Abstract A chain swing for an outdoor amusement device having four chains supporting a bar, curved seats which are held apart by spacebars and held fast to the chains by spring pin arrangements, the spring pin arrangements including springs interposed between the bottom of the spacebar and extensions or wings of the spring pin arrangement for resilient cushioning of said seats.
Inventors
- 👤 Martin Green
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:57
CPC Classifications
A; A63; A63G; A63G9/00
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
163 words
An outdoor gym set with a swing, comprising in combination; a frame to support the swing including a main cylinder with a swing section; pairs of space chains extending from said swing section; hollow spacebars horizontally affixed to the outer ends of each pair of chains and at least two seats, each seat extending across the outer ends of the spacebars, the ends of each spacebar having upper and lower vertically spaced apertures therethrough, each of said chains being attached to the ends of the spacebars by a winged pin and a coiled spring, each said winged pin having a winged portion and a pin portion, each said coiled spring being vertically placed within a said hollow spacebar and having its vertical axis in registry with the center of said upper and lower apertures and having its upper end abutting the inner surface of the spacebar adjacent said upper aperture, and its lower end abutting said winged portion of a said winged pin.
Claim 2
Dependent Claim
163 words
An outdoor gym set with a swing, comprising in combination; a frame to support the swing including a main cylinder with a swing section; pairs of space chains extending from said swing section; hollow spacebars horizontally affixed to the outer ends of each pair of chains and at least two seats, each seat extending across the outer ends of the spacebars, the ends of each spacebar having upper and lower vertically spaced apertures therethrough, each of said chains being attached to the ends of the spacebars by a winged pin and a coiled spring, each said winged pin having a winged portion and a pin portion, each said coiled spring being vertically placed within a said hollow spacebar and having its vertical axis in registry with the center of said upper and lower apertures and having its upper end abutting the inner surface of the spacebar adjacent said upper aperture, and its lower end abutting said winged portion of a said winged pin.
Claim 3
Dependent Claim
28 words
A device as claimed in claim 1, wherein the spacebars have a winged U-shape, seats being placed across the ends thereof with a footrest at the center thereof.
Claim 4
Dependent Claim
26 words
A device as claimed in claim 2 wherein the spacebars are curved, with seats across the outer ends thereof and a footrest at the center thereof.
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) | 1974-05-24 | 1974-11-23 | 1975-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-24 | 1978-11-23 | 1979-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-24 | 1982-11-23 | 1983-05-25 | $7700.00 | Window Closed / Lapsed |