Patent US3796429A successfully refreshed from Google Patents.
US3796429A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Playground slide
Assignee: Individual
•
Filing: 1972-11-29
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Granted: 1974-03-12
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Expires: 1992-11-29
Abstract
Abstract An adjustable and portable playground slide adapted for placement on, for example, a conventional staircase. The slide is composed of detachable section channels, with telescoping legs for determining the angle of incline, which are uniquely braced together by means of extensible members to insure the safety of the user without impairing the detachability of the sections which serve to facilitate assembly and portage.
Inventors
- 👤 E Johnston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:57
CPC Classifications
A; A63; A63G; A63G21/00; Y; Y10; Y10T; Y10T24/00; Y10T24/44; Y10T24/44966; Y10T24/44974
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
179 words
A playground slide adapted for mounting on a staircase comprising a plurality of elongated detachable channel Slide sections, the elongated side edges of each section each comprising an elongated socket, an elongated plug fixed to and extending from one of the ends of each socket receivable in a socket of an adjoining section for longitudinal alignment of said sections, a plurality of elongated depending leg supports each having one end hingedly secured to a respective socket with each leg support being elongatedly adjustable, and a plurality of elongated adjustable telescoping brace members with adjustable mounting means on each end thereof whereby the adjustment of the elongated depending leg supports adjusts the incline angle of the slide with the telescoping brace members each being elongatedly adjusted to connect a respective depending leg support on one slide section with the depending leg support on the same side of the adjacent slide section by means of the adjustable mounting means adjustably engaging the respective legs at any selected points along the length thereof so as to impart rigidity to the overall slide.
Claim 2
Dependent Claim
179 words
A playground slide adapted for mounting on a staircase comprising a plurality of elongated detachable channel Slide sections, the elongated side edges of each section each comprising an elongated socket, an elongated plug fixed to and extending from one of the ends of each socket receivable in a socket of an adjoining section for longitudinal alignment of said sections, a plurality of elongated depending leg supports each having one end hingedly secured to a respective socket with each leg support being elongatedly adjustable, and a plurality of elongated adjustable telescoping brace members with adjustable mounting means on each end thereof whereby the adjustment of the elongated depending leg supports adjusts the incline angle of the slide with the telescoping brace members each being elongatedly adjusted to connect a respective depending leg support on one slide section with the depending leg support on the same side of the adjacent slide section by means of the adjustable mounting means adjustably engaging the respective legs at any selected points along the length thereof so as to impart rigidity to the overall slide.
References Cited (Backward Citations)
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Cited
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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) | 1977-03-11 | 1977-09-10 | 1978-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-11 | 1981-09-10 | 1982-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-11 | 1985-09-10 | 1986-03-12 | $7700.00 | Window Closed / Lapsed |