US4595234A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rocking chair
Assignee: Individual
•
Filing: 1984-10-19
•
Granted: 1986-06-17
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Expires: 2004-10-19
Abstract
Abstract A rocking chair with rockers wherein each rocker has a fulcrum between a forward rocker section and a rearward rocker section for tilting the chair into a forward or a backward position, respectively. The chair seat and backrest are connected to the forward ends of the rockers via resilient arms which form acute angles to the rockers and whose upper, substantially horizontal parts support the rear section of the seat, which section is lower than the forward section of the seat. The backrest comprises a straight, fixed, horizontal body disposed at a height of less than 30 cm, preferably about 22 cm, above the lowest section of the seat, which corresponds to the height of the fifth lumbar vertebra of a person sitting in the chair. The vertical thickness of the backrest body is less than 11 cm, preferably 8 cm or less, and its forward surface is approximately vertical when the chair has been tipped into its backward position. In a preferred embodiment, the lower edge of the support body will thus lie 14-15 cm above the lower, rear section of the chair seat.
Inventors
- 👤 Jens A. Kjersem
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 21:17
CPC Classifications
A; A47; A47C; A47C3/00; A47C3/02; A47C3/029; A47C9/00; A47C9/002
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
173 words
A rocking chair with rockers wherein each rocker has a fulcrum between a forward rocker section and a rearward rocker section for rocking the chair into a forward-tilted or back-tilted position, respectively, and wherein the chair seat and backrest are connected to the forward end of the rockers via resilient arms which form acute angles relative to the rockers and whose upper, substantially horizontal parts provide support for the chair seat, wherein the rear section of the chair seat is lower than its forward section in the back tilted position of the chair, and the backrest comprises a straight, fixed, horizontal body disposed at a height of less than 30 cm above the lower section of the seat, which corresponds to the height of the fifth lumbar vertebra on an adult person sitting in the chair, the vertical thickness of said backrest body being less than 11 cm, and the forward surface of the backrest being approximately vertical when the chair has been tilted into the back-tilted position, resting on a horizontal surface.
Claim 2
Dependent Claim
173 words
A rocking chair with rockers wherein each rocker has a fulcrum between a forward rocker section and a rearward rocker section for rocking the chair into a forward-tilted or back-tilted position, respectively, and wherein the chair seat and backrest are connected to the forward end of the rockers via resilient arms which form acute angles relative to the rockers and whose upper, substantially horizontal parts provide support for the chair seat, wherein the rear section of the chair seat is lower than its forward section in the back tilted position of the chair, and the backrest comprises a straight, fixed, horizontal body disposed at a height of less than 30 cm above the lower section of the seat, which corresponds to the height of the fifth lumbar vertebra on an adult person sitting in the chair, the vertical thickness of said backrest body being less than 11 cm, and the forward surface of the backrest being approximately vertical when the chair has been tilted into the back-tilted position, resting on a horizontal surface.
Claim 3
Dependent Claim
33 words
A rocking chair according to claim 1, characterized in that the forward surface of the backrest body is disposed almost directly above the rear edge of the rear section of the chair seat.
Claim 4
Dependent Claim
30 words
A rocking chair according to claim 1, characterized in that the backrest body is embedded within a padded material which gradually becomes integral with the padding or the chair seat.
Claim 5
Dependent Claim
28 words
A rocking chair according to claim 1, characterized in that the rear section of the seat is supported by said upper substantially horizontal parts of the resilient arms.
Claim 6
Dependent Claim
22 words
A rocking chair according to claim 1, wherein said straight, fixed, horizontal body is disposed at a height of about 22 cm.
Claim 7
Dependent Claim
22 words
A rocking chair according to claim 2, wherein said straight, fixed, horizontal body is disposed at a height of about 22 cm.
Claim 8
Dependent Claim
20 words
A rocking chair according to claim 1, wherein the vertical thickness of said backseat body is 8 cm or less.
Claim 9
Dependent Claim
20 words
A rocking chair according to claim 2, wherein the vertical thickness of said backseat body is 8 cm or less.
Claim 10
Dependent Claim
20 words
A rocking chair according to claim 5, wherein the vertical thickness of said backseat body is 8 cm or less.
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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) | 1989-06-16 | 1989-12-16 | 1990-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-06-16 | 1993-12-16 | 1994-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-06-16 | 1997-12-16 | 1998-06-17 | $7700.00 | Window Closed / Lapsed |