Patent US3712674A successfully refreshed from Google Patents.
US3712674A
Expired / Lapsed
US
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Inflatable chair
Assignee: Century Products Inc
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Filing: 1971-04-19
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Granted: 1973-01-23
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Expires: 1991-04-19
Abstract
Abstract An inflatable chair is provided, consisting of a plurality of separately inflatable portions or sections, and which is so constructed as to adhere to the floor by the suction of a portion of the chair against the floor, to thereby provide excellent stability of the chair, irrespective of how the weight of an occupant of the chair is shifted in relation to the chair.
Inventors
- 👤 S Ando
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:05
CPC Classifications
A; A47; A47C; A47C4/00; A47C4/54; A47C3/00; A47C3/16; Y; Y10; Y10S; Y10S297/00; Y10S297/03
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
77 words
In a chair of the character described, said chair comprising a plurality of inflatable sections, independent of each other and separately inflatable, one of said sections constituting the back and arms of the chair, another section of circular conformation constituting the seat of the chair, and another section constituting a floor-engaging member which, when inflated, is in the form of a hollow torus, having an external diameter greater than the diameter of said seat section when inflated.
Claim 2
Dependent Claim
77 words
In a chair of the character described, said chair comprising a plurality of inflatable sections, independent of each other and separately inflatable, one of said sections constituting the back and arms of the chair, another section of circular conformation constituting the seat of the chair, and another section constituting a floor-engaging member which, when inflated, is in the form of a hollow torus, having an external diameter greater than the diameter of said seat section when inflated.
Claim 3
Dependent Claim
25 words
A chair, as defined in claim 1, in which said sections are made of a plastic material, and the sections are heat-sealed to each other.
Claim 4
Dependent Claim
31 words
A chair, as defined in claim 2, wherein said seat section comprises a pair of vertically-spaced disc-like portions and an annular portion interconnecting said disc-like portions, and heat-sealed to the latter.
Claim 5
Dependent Claim
38 words
A chair, as defined in claim 1, wherein said floor-engaging section consists of a strip of plastic material coiled to form a hollow torus, and having at least one flange-like portion which is heat-sealed to said seat section.
Claim 6
Dependent Claim
35 words
A chair, as defined in claim 1, wherein said floor-engaging section consists of a strip of plastic material coiled to form a hollow torus and having flange-like portions which are heat-sealed to said seat section.
Claim 7
Dependent Claim
29 words
A chair, as defined in claim 1, wherein each section is provided with a valve or inlet through which air under pressure may be introduced to inflate the sections.
References Cited (Backward Citations)
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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) | 1976-01-23 | 1976-07-24 | 1977-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-23 | 1980-07-24 | 1981-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-23 | 1984-07-24 | 1985-01-23 | $7700.00 | Window Closed / Lapsed |