US3602928A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pillow construction
Assignee: Individual
•
Filing: 1969-03-10
•
Granted: 1971-09-07
•
Expires: 1989-03-10
Abstract
Abstract An inflatable pillow having a central aperture is arranged for positioning under the neck and lower head of the user, maintaining the hair of the user in an elevated position to prevent crushing of the hairdo, and a surge chamber extending beyond the head of the user permits a flow of air into and out of a main portion of the pillow.
Inventors
- 👤 Florence V Helzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:27
CPC Classifications
A; A47; A47G; A47G9/00; A47G9/10; A47G2009/003
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
223 words
An inflatable pillow for preventing crushing the hairdo of the user comprising: a. an elongated first generally rectangular chamber when inflated supporting the neck, shoulders and a portion of the head of the user; b. a second generally rectangular chamber arranged as a surge chamber to accommodate surges of air from said first chamber, and spaced therefrom so thaT the head and hair of the user generally do not contact said second chamber when inflated, said first chamber being approximately twice the crosssectional width of said second chamber, and the length of both said chambers being about three times the cross-sectional width of said first chamber; c. a pair of spaced-apart chambers having a length less than that of said first and second chamber extending from the ends of said first chamber to the ends of said second chamber providing means for forming communication passages in said pillow between said first and second chambers, supporting the hair of the user above the supporting surface of the pillow, and permitting free movement of a user on said first chamber, a generally rectangular pillow with a generally rectangular opening being formed by said chambers, the pillow being formed solely by said chambers and being flexible in its inflated and deflated states; and d. means for inflating said pillow at least adjacent to said second chamber.
Claim 2
Dependent Claim
223 words
An inflatable pillow for preventing crushing the hairdo of the user comprising: a. an elongated first generally rectangular chamber when inflated supporting the neck, shoulders and a portion of the head of the user; b. a second generally rectangular chamber arranged as a surge chamber to accommodate surges of air from said first chamber, and spaced therefrom so thaT the head and hair of the user generally do not contact said second chamber when inflated, said first chamber being approximately twice the crosssectional width of said second chamber, and the length of both said chambers being about three times the cross-sectional width of said first chamber; c. a pair of spaced-apart chambers having a length less than that of said first and second chamber extending from the ends of said first chamber to the ends of said second chamber providing means for forming communication passages in said pillow between said first and second chambers, supporting the hair of the user above the supporting surface of the pillow, and permitting free movement of a user on said first chamber, a generally rectangular pillow with a generally rectangular opening being formed by said chambers, the pillow being formed solely by said chambers and being flexible in its inflated and deflated states; and d. means for inflating said pillow at least adjacent to said second chamber.
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) | 1974-09-06 | 1975-03-08 | 1975-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-06 | 1979-03-08 | 1979-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-06 | 1983-03-08 | 1983-09-07 | $7700.00 | Window Closed / Lapsed |