Patent US3877669A successfully refreshed from Google Patents.
US3877669A
Expired / Lapsed
US
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Composable unit base for furniture
Assignee: Individual
•
Filing: 1973-06-06
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Granted: 1975-04-15
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Expires: 1993-06-06
Abstract
Abstract A composable unit base for furniture comprising a column and a plurality of elements extending radially from the lower end of the column. Each of the radial elementts has an end in the form of a crown sector which comprises, upperly a tapered projection and at the lower side a groove, as means for the engagement with the column. Said sectors are inserted between disc elements provided at the lower end of the column and are locked in this arrangement by means of a tie rod.
Inventors
- 👤 Emilio Ambasz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:59
CPC Classifications
A; A47; A47B; A47B13/00; A47B13/02; A47B13/023; A47B2013/024; A47B2013/025
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
167 words
Composable unit base for furniture, comprising a plurality of arms radially arranged with respect to a column and means for fixing the inner ends of said arms to the lower end of said column, said means including a projection provided at the inner end of each arm and extending upwardly from the upper side thereof, a groove formed at in the lower side of said arm end, an upper disc element fixed at the lower end of the column and engaged by said projection and a lower disc element engaging said groove, means for clamping said arm ends between said disc elements, wherein according to the improvement each inner arm end is laterally defined by two flat radial surfaces which converge towards the axis of the column and between which said projection and said groove extend concentrically to said axis, sleeve sector elements being further provided which are arranged between the inner ends of adjacent arms to fill the space therebetween and clamped between said disc elements.
Claim 2
Dependent Claim
167 words
Composable unit base for furniture, comprising a plurality of arms radially arranged with respect to a column and means for fixing the inner ends of said arms to the lower end of said column, said means including a projection provided at the inner end of each arm and extending upwardly from the upper side thereof, a groove formed at in the lower side of said arm end, an upper disc element fixed at the lower end of the column and engaged by said projection and a lower disc element engaging said groove, means for clamping said arm ends between said disc elements, wherein according to the improvement each inner arm end is laterally defined by two flat radial surfaces which converge towards the axis of the column and between which said projection and said groove extend concentrically to said axis, sleeve sector elements being further provided which are arranged between the inner ends of adjacent arms to fill the space therebetween and clamped between said disc elements.
Claim 3
Dependent Claim
63 words
Composable unit base as claimed in claim 1 wherein each sleeve sector element comprises an upper projection and a lower groove extending concentrically to the axis of the column for engagement with said upper and lower disc elements, said sector element being defined by two radial surfaces including an angle equal to the angle included by the opposite surfaces of adjacent arm ends.
Claim 4
Dependent Claim
48 words
Composable unit base as claimed in claim 1 wherein the radially arranged arm ends and sectors define a central passage coaxial to the column and having a conical surface tapered downwardly and engaged by a conical sleeve projecting into said passage and integral with the upper disc element.
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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) | 1978-04-14 | 1978-10-14 | 1979-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-14 | 1982-10-14 | 1983-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-14 | 1986-10-14 | 1987-04-15 | $7700.00 | Window Closed / Lapsed |