Patent US4389070A successfully refreshed from Google Patents.
US4389070A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reclining chair with supplemental telescoping frame
Assignee: Individual
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Filing: 1980-02-27
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Granted: 1983-06-21
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Expires: 2000-02-27
Abstract
Abstract A reclining chair has a main frame and a supplemental frame telescoping therefrom. The main frame includes a foot section and a back section pivotally supported thereon and latchable in adjusted positions. The back section includes arcuate slots and the supplemental frame includes horizontal legs telescoping into the main frame and vertical legs connected by pin means to the arcuate slots in the backrest. Spring means bias the horizontal legs toward the main frame and bias the vertical legs upwardly from the supplemental frame so that as the backrest is moved toward the horizontal the horizontal legs are extended and the vertical legs are lowered against the bias of the springs.
Inventors
- 👤 Wu-Shinn Chien
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:30
CPC Classifications
A; A47; A47C; A47C7/00; A47C7/50; A47C7/506; A47C1/00; A47C1/02; A47C1/022; A47C1/024
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
225 words
In a reclining chair having a main frame, and a supplemental frame telescopingly supported therefrom for movement between a first position wherein said supplemental frame is disposed adjacent said main frame and a plurality of telescoped positions wherein said supplemental frame is spaced from said main frame, the main frame including foot and back portions each pivotably mounted thereon for movement between raised and lowered positions, the foot and back portions being pivotable about respective axes through a plurality of positions intermediate the raised and lowered positions, and being latchable in any of said raised, lowered or intermediate positions, the improvement comprising: said back portion including arcuate slots disposed in opposing sides thereof; said supplemental frame including (1) a pair of horizontal legs telescopingly engaged with, and normally biased through tension means toward, said main frame, and (2) a pair of vertical legs each telescopingly supporting pin means thereon for vertical movement relative to said vertical legs, each said vertical leg carrying a compression spring biasing said pin means away from said supplemental frame; said pin means being engaged in said slots to cooperate therewith and interconnect said back portion with said supplemental frame during pivotal movement of said back portion relative to said main frame; and means for simultaneously unlatching said foot and back portions from any of said raised, intermediate or lowered positions.
Claim 2
Dependent Claim
225 words
In a reclining chair having a main frame, and a supplemental frame telescopingly supported therefrom for movement between a first position wherein said supplemental frame is disposed adjacent said main frame and a plurality of telescoped positions wherein said supplemental frame is spaced from said main frame, the main frame including foot and back portions each pivotably mounted thereon for movement between raised and lowered positions, the foot and back portions being pivotable about respective axes through a plurality of positions intermediate the raised and lowered positions, and being latchable in any of said raised, lowered or intermediate positions, the improvement comprising: said back portion including arcuate slots disposed in opposing sides thereof; said supplemental frame including (1) a pair of horizontal legs telescopingly engaged with, and normally biased through tension means toward, said main frame, and (2) a pair of vertical legs each telescopingly supporting pin means thereon for vertical movement relative to said vertical legs, each said vertical leg carrying a compression spring biasing said pin means away from said supplemental frame; said pin means being engaged in said slots to cooperate therewith and interconnect said back portion with said supplemental frame during pivotal movement of said back portion relative to said main frame; and means for simultaneously unlatching said foot and back portions from any of said raised, intermediate or lowered positions.
Claim 3
Dependent Claim
160 words
In the reclining chair of claim 1, the improvement further comprising: said back and foot portions each further including an apertured control wheel mounted on said respective axis; said back and foot portions being normally biased by torsion spring means toward their respective raised positions; said unlatching means including a first latching key normally biased into engagement with one of said back portion control wheel apertures, a second latching key normally biased into engagement with one of said foot portion control wheel apertures, and handle means connected to both said first and second latching keys for enabling simultaneous unlatching of said back and foot portions relative to said main frame; and said first and second control wheel being pivotable independently of each other, whereby upon actuation of said unlatching means, both said first and second latching keys are simultaneously removed from engagement with their respective control wheel aperture, thereby making the back and foot portions free for independent pivotal movement.
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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) | 1986-06-20 | 1986-12-20 | 1987-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-06-20 | 1990-12-20 | 1991-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-06-20 | 1994-12-20 | 1995-06-21 | $7700.00 | Window Closed / Lapsed |