Patent US4305704A successfully refreshed from Google Patents.
Patent US4237795A successfully refreshed from Google Patents.
US4237795A
Expired / Lapsed
US
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Dual height table
Assignee: Ladd Furniture Inc
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Filing: 1978-10-20
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Granted: 1980-12-09
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Expires: 1998-10-20
Abstract
Abstract A table selectively adjustable to two heights on L-shaped leg members which are pivoted to the table top at corresponding distal ends of the leg members.
Inventors
- 👤 Wayland B. Parker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:27
CPC Classifications
A; A47; A47B; A47B9/00; A47B2009/006; A47B2200/00; A47B2200/0035; A47B2200/0039
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
296 words
In a table having a table top supported on L-shaped leg members which are movably connected to the table top to support the table top selectively at one of two heights above a floor by standing the table top either on the long or the short legs of said leg members, the improvement comprising the pivotal connection of the leg members to the table top at the distal ends of the short legs with said leg members oriented so that the short legs extend inwardly of the table when the table is supported by the long legs, and the long legs extend inwardly of the table when the table is supported by the short legs, slide members secured to the underside of the table top and having said pivotal connections secured thereto for sliding movement therewith, said pivotal connections of the leg members to the table top being movable along the underside of the table top to alter the distance between the pivot axes of opposed leg members at least to the extent necessary to provide the same spacing of the supporting legs at both heights of the table top, said legs being four in number arranged in two opposing pairs, said pivotal connections being located at inward positions with said short legs abutting the underside of said table top when the table is supported by said long legs to provide stability to said table, said pivotal connections being moved from said inward positions to adjacent the table end when the table is supported by the short legs, said short legs and said long legs each being located at corners of the table top when supporting the table, said long legs being aligned and abutting the floor when the table is positioned at the lower height.
Claim 2
Dependent Claim
296 words
In a table having a table top supported on L-shaped leg members which are movably connected to the table top to support the table top selectively at one of two heights above a floor by standing the table top either on the long or the short legs of said leg members, the improvement comprising the pivotal connection of the leg members to the table top at the distal ends of the short legs with said leg members oriented so that the short legs extend inwardly of the table when the table is supported by the long legs, and the long legs extend inwardly of the table when the table is supported by the short legs, slide members secured to the underside of the table top and having said pivotal connections secured thereto for sliding movement therewith, said pivotal connections of the leg members to the table top being movable along the underside of the table top to alter the distance between the pivot axes of opposed leg members at least to the extent necessary to provide the same spacing of the supporting legs at both heights of the table top, said legs being four in number arranged in two opposing pairs, said pivotal connections being located at inward positions with said short legs abutting the underside of said table top when the table is supported by said long legs to provide stability to said table, said pivotal connections being moved from said inward positions to adjacent the table end when the table is supported by the short legs, said short legs and said long legs each being located at corners of the table top when supporting the table, said long legs being aligned and abutting the floor when the table is positioned at the lower height.
Claim 3
Dependent Claim
43 words
The improvement of claim 1 wherein the leg members are connected to the table top as opposed pairs with the corresponding idle legs of said pairs extending toward each other when the table top is supported by the other legs of each pair.
Claim 4
Dependent Claim
115 words
The improvement of claim 2 wherein the two leg members are parallel to each other, are rigidly interconnected for movement in unison, and are pivoted to the table top on a common axis which is parallel to the corresponding pivot axis of the opposed pair, and the pivotal connection of each pair to the table top is movable through a distance at least as great as the length of the short legs so that the spacing of the supporting legs is uniform at both table heights, the long legs of the opposed pairs of leg members being aligned with and abutting each other on the floor when the table is positioned at the lower height.
Claim 5
Dependent Claim
44 words
The improvement of claim 1 in which a cross member joins together two short legs at their respective junctures with their long legs, and a detent means on said table has detenting engagement with said cross member when said long legs support the table.
References Cited (Backward Citations)
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Cited
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US2581658A
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US2843437A
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US3087442A
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US3783799A
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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) | 1983-12-09 | 1984-06-09 | 1984-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-12-09 | 1988-06-09 | 1988-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-12-09 | 1992-06-09 | 1992-12-09 | $7700.00 | Window Closed / Lapsed |