US4168669A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable height tray table
Assignee: LAICH INDUSTRIES CORP
•
Filing: 1978-06-29
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Granted: 1979-09-25
•
Expires: 1998-06-29
Abstract
Abstract An adjustable height tray table is disclosed having supporting legs which are not permanently secured to the tray, whereby the tray may be removed from the supporting legs and used separately or independently as a serving tray. Adjustment of the height is effected without the use of tools or supplementary fasteners. Indicia are provided on the tray for enabling the user of the tray table to quickly and easily adjust the table to the desired height. Leg assemblies are provided with areas or means which enable the legs to be coordinated with elements of the tray for enabling the desired height to be quickly and easily attained. The tray is provided with locator members which enable the tray to be adjusted to a plurality of selected heights.
Inventors
- 👤 Philip J. Arnoff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:23
CPC Classifications
A; A47; A47B; A47B9/00; A47B9/16; A47B3/00; A47B3/12
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
135 words
In an adjustable height tray table, a tray, a pair of foldable leg assemblies having cross-bars, and means adapted to receive said cross-bars for adjusting the height of said tray, said means comprising members secured to the bottom of said tray, each of said members comprising an elongated one-piece plastic molding having a plurality of downwardly facing parallel sockets spaced longitudinally of said member and into which said cross-bars may be snapped, said tray having ribs extending downwardly from the bottom thereof, defining areas in which said members are confined, and said cross-bars being provided with annular projections or beads adapted to abut said members at the ends of said sockets for aiding in properly locating said cross-bars longitudinally relatively to said members, to thereby further facilitate assembly of said leg assemblies with said tray.
Claim 2
Dependent Claim
135 words
In an adjustable height tray table, a tray, a pair of foldable leg assemblies having cross-bars, and means adapted to receive said cross-bars for adjusting the height of said tray, said means comprising members secured to the bottom of said tray, each of said members comprising an elongated one-piece plastic molding having a plurality of downwardly facing parallel sockets spaced longitudinally of said member and into which said cross-bars may be snapped, said tray having ribs extending downwardly from the bottom thereof, defining areas in which said members are confined, and said cross-bars being provided with annular projections or beads adapted to abut said members at the ends of said sockets for aiding in properly locating said cross-bars longitudinally relatively to said members, to thereby further facilitate assembly of said leg assemblies with said tray.
Claim 3
Dependent Claim
25 words
An adjustable height tray table, as defined in claim 1, wherein said members are cemented or adhesively secured to said tray bottom in said areas.
Claim 4
Dependent Claim
39 words
An adjustable height tray table, as defined in claim 2, wherein said tray bottom is provided with indicia adjacent to and associated with said sockets indicative of the height represented by the sockets for facilitating placement of said cross-bars.
References Cited (Backward Citations)
US1608569A
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US2614348A
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Cited
US3329104A
Cited
US3349727A
Cited
US3687092A
Cited
US3897738A
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US4010696A
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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) | 1982-09-24 | 1983-03-26 | 1983-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-09-24 | 1987-03-26 | 1987-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-09-24 | 1991-03-26 | 1991-09-25 | $7700.00 | Window Closed / Lapsed |