US3801122A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lounge chair having mobile base
Assignee: La Z Boy Inc
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Filing: 1973-01-12
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Granted: 1974-04-02
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Expires: 1993-01-12
Abstract
Abstract The base for a rockable lounge chair has wheels at the front end and pads and casters at the rear end. Lever means is employed at the rear end for raising the chair from the pads onto the casters which permits the occupant or other persons to move the chair to another location. When the lever is released, the chair is maintained in the new location by the pads thereon.
Inventors
- 👤 D White
- 👤 E Shoemaker
- 👤 E Gensler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:23
CPC Classifications
A; A47; A47C; A47C7/00; A47C7/002; A47C7/006; A47C3/00; A47C3/02; A61; A61G; A61G5/00; B; B60; B60B; B60B33/00; B60B33/04; B60B33/06
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
75 words
In a base for a chair, a base frame having side elements with a pair of cross members therebetween, a wheel mounted at the front end of each side element, a fixed floor engaging section at the rear of said side elements, a pair of casters at the rear of said side elements, and means for lowering said casters and raising the floor engaging sections from the floor when the casters move into engagement therewith.
Claim 2
Dependent Claim
75 words
In a base for a chair, a base frame having side elements with a pair of cross members therebetween, a wheel mounted at the front end of each side element, a fixed floor engaging section at the rear of said side elements, a pair of casters at the rear of said side elements, and means for lowering said casters and raising the floor engaging sections from the floor when the casters move into engagement therewith.
Claim 3
Dependent Claim
70 words
In a base for a chair as recited in claim 1, wherein said side elements are of unit construction having pivot means at the front end of said wheels, the rear end of said elements having aperture means, a rod in said aperture means for supporting said casters, and lever means for forcing the rods downwardly in said apertures for raising the rear end of the chair onto said casters.
Claim 4
Dependent Claim
35 words
In a base for a chair as recited in claim 2, wherein said rods are slotted, and pivot means supporting said lever means in said slots for moving the chair to raised or lowered position.
Claim 5
Dependent Claim
30 words
In a base for a chair as recited in claim 2, wherein the lower end of the rods has an aperture in which the stems of the casters are supported.
Claim 6
Dependent Claim
49 words
In a base for a chair as recited in claim 1, wherein a rocking element is mounted on the inner face of the chair frame having a downwardly presenting arcuate surface, and a flat top central section on said base engaged by said arcuate surfaces of said rocking elements.
Claim 7
Dependent Claim
23 words
In a base for a chair as recited in claim 5, wherein spring units interconnect the rocking elements and the base side elements.
Claim 8
Dependent Claim
29 words
In a base for a chair as recited in claim 1, wherein an elastomeric strip is secured on the underside of the floor engaging section of the side elements.
Claim 9
Dependent Claim
34 words
In a base for a chair as recited in claim 2, wherein cross bars interconnect the levers for moving them in either direction by a downward movement on one or the other cross bars.
Claim 10
Dependent Claim
26 words
In a base for a chair as recited in claim 1, wherein interconnecting means are secured to said lowering means to have them operate in unison.
Claim 11
Dependent Claim
49 words
In a base for a chair as recited in claim 1, wherein a pair of spaced posts are supported on the front cross bar, and a latching lever pivoted to the posts when supported therebetween in position to engage the teeth on the chair to prevent it from rocking.
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) | 1977-04-01 | 1977-10-01 | 1978-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-04-01 | 1981-10-01 | 1982-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-04-01 | 1985-10-01 | 1986-04-02 | $7700.00 | Window Closed / Lapsed |