US3695701A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable leg rest
Assignee: La Z Boy Inc
•
Filing: 1970-10-21
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Granted: 1972-10-03
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Expires: 1990-10-21
Abstract
Abstract The leg rest of the chair is extensible from a position against the front of the seat to a position forwardly thereof. A pair of spaced scissor links support the leg rest in retracted and extended positions when actuated by a movable member such as a chair back, handle or the like. The leg rest is supported on the scissor links for forward movement thereon when extended to position the leg rest a greater distance from the front of the chair. The forward movement of the leg rest tensions springs and operate latches which retain the leg rest in a selected one of a plurality of forward positions. The latches are automatically released upon the operation of the scissor links to retract the leg rest to its position adjacent to the front of the chair which permits the springs to return the leg rest to its initial position before the end of the retractive movement of the links.
Inventors
- 👤 Edward M Knabusch
- 👤 Edwin J Shoemaker
- 👤 David B White
- 👤 Harold P Ruble
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:08
CPC Classifications
A; A47; A47C; A47C7/00; A47C7/50; A47C7/506; A47C7/5062
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
63 words
In a leg rest for a chair, a pair of spaced link means extensible from the front of the chair, a unit leg rest, and slidable elements supported on the free ends of the link means which permit the leg rest mounted on said elements to be manually moved forwardly of the front of the chair when the leg rest is extended therefrom.
Claim 2
Dependent Claim
63 words
In a leg rest for a chair, a pair of spaced link means extensible from the front of the chair, a unit leg rest, and slidable elements supported on the free ends of the link means which permit the leg rest mounted on said elements to be manually moved forwardly of the front of the chair when the leg rest is extended therefrom.
Claim 3
Dependent Claim
36 words
In a leg rest for a chair as recited in claim 1, wherein said link means is of the scissor type on the free ends of which one of said relatively slidable elements are pivotally mounted.
Claim 4
Dependent Claim
21 words
In a leg rest for a chair as recited in claim 2, wherein said one relatively slidable element is a link.
Claim 5
Dependent Claim
37 words
In a leg rest for a chair as recited in claim 3, wherein the other of said relatively slidable elements is a channel member disposed in slidable relation on said links and secured to said leg rest.
Claim 6
Dependent Claim
48 words
In a leg rest for a chair as recited in claim 1, wherein a latch element is pivotally carried by one of said slidable elements at each side of the chair, and one or more latch engaging members on each of the other of said relatively slidable elements.
Claim 7
Dependent Claim
49 words
In a leg rest for a chair as recited in claim 1, wherein a latch element is pivotally carried by said link means at each side of the chair, and one or more latch engaging members on one of said relatively slidable elements located adjacent to the latch elements.
Claim 8
Dependent Claim
38 words
In a leg rest for a chair as recited in claim 5, wherein spring means is secured to opposite ends of said relatively slidable elements in position to retract the leg rest when the latch elements are released.
Claim 9
Dependent Claim
38 words
In a leg rest for a chair as recited in claim 6, wherein spring means is secured to opposite ends of said relatively slidable elements in position to retract the leg rest when the latch elements are released.
Claim 10
Dependent Claim
52 words
In a leg rest for a chair as recited in claim 7, wherein means are provided for releasing said latch means upon the retraction of said link means to permit the leg rest to return to its initial position thereon as the link means and leg rest are moved to retracted position.
Claim 11
Dependent Claim
52 words
In a leg rest for a chair as recited in claim 8, wherein means are provided for releasing said latch means upon the retraction of said link means to permit the leg rest to return to its initial position thereon as the link means and leg rest are moved to retracted position.
Claim 12
Dependent Claim
27 words
In a leg rest for a chair as recited in claim 9, wherein stop means limits the movement of the leg rest in both directions of movement.
Claim 13
Dependent Claim
27 words
In a leg rest for a chair as recited in claim 10, wherein stop means limits the movement of the leg rest in both directions of movement.
References Cited (Backward Citations)
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Cited
US403318A
Cited
US639076A
Cited
US2503049A
Cited
US2642122A
Cited
US2664942A
Cited
GB815713A
Cited
US3096121A
Cited
US3325210A
Cited
US3357739A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-10-03 | 1976-04-03 | 1976-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-03 | 1980-04-03 | 1980-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-03 | 1984-04-03 | 1984-10-03 | $7700.00 | Window Closed / Lapsed |