Patent US3756166A successfully refreshed from Google Patents.
US3756166A
Expired / Lapsed
US
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Folding study-table
Assignee: Castelli SpA
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Filing: 1972-03-08
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Granted: 1973-09-04
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Expires: 1992-03-08
Abstract
Abstract A foldable study table or the like adapted to collapse into a compact form. The study table includes a table-top plate and first and second U-shaped frames pivotally connected to each other along an axis so that one frame is nested within the other frame when the study table is in a collapsed condition. The table-top plate is pivotally connected to the frames along said axis and same is nested within said frames when the study table is in a collapsed or stored condition so as to provide an overall coplaner configuration to said foldable study-table.
Inventors
- 👤 Giancarlo Piretti
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 03:32
CPC Classifications
A; A47; A47B; A47B3/00; A47B3/08; A47B2200/00; A47B2200/0011; A47B2200/002; A47B2200/0033
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
205 words
A foldable study-table or the like adapted to collapse into a compact form comprising: a table-top plate, a first or outer Ushaped frame and a second or inner U-shaped frame, said frames being pivotally connected to each other along a common transverse horizontal axis so that one frame is adapted to be nested within the other frame; the U-shaped frames form the legs of the studytable, and are connected to one another at the free distal ends of the legs formed by said frames, and said frames being pivotally connected to opposite sides of said table-top plate near the rear sides of said table top plate by means of bushing assemblies; said study-table having a collapsed or stored condition wherein said table-top plate is nested within said Ushaped frames so as to provide an overall coplaner configuration; said bushing assemblies including limit stop means, adapted to limit the angular amplitude of the relative rotation between said frames, and defining a stop position for said study-table and said frames when they are coplaner in the storage position, and when they are in an erected or use position; and said first and second U-shaped frames form with respect to one another an angle less than about 90*.
Claim 2
Dependent Claim
205 words
A foldable study-table or the like adapted to collapse into a compact form comprising: a table-top plate, a first or outer Ushaped frame and a second or inner U-shaped frame, said frames being pivotally connected to each other along a common transverse horizontal axis so that one frame is adapted to be nested within the other frame; the U-shaped frames form the legs of the studytable, and are connected to one another at the free distal ends of the legs formed by said frames, and said frames being pivotally connected to opposite sides of said table-top plate near the rear sides of said table top plate by means of bushing assemblies; said study-table having a collapsed or stored condition wherein said table-top plate is nested within said Ushaped frames so as to provide an overall coplaner configuration; said bushing assemblies including limit stop means, adapted to limit the angular amplitude of the relative rotation between said frames, and defining a stop position for said study-table and said frames when they are coplaner in the storage position, and when they are in an erected or use position; and said first and second U-shaped frames form with respect to one another an angle less than about 90*.
Claim 3
Dependent Claim
38 words
A study-table according to claim 1, wherein said table-top plate is provided with at least one recess; and the angle through which said table-top plate rotates with respect to the second U-shaped frame is greater than about 180*.
Claim 4
Dependent Claim
40 words
A collapsible study-table according to claim 2, wherein said recess is shallow and substantially large in cross sectional area, and an insert resistant to cuts and scratches is disposed in said recess so as to form an overall flush surface.
Claim 5
Dependent Claim
23 words
A study-table according to claim 3, wherein additional recesses are provided along one side of said table-top plate for accommodating various writing utensils.
Claim 6
Dependent Claim
20 words
A study-table according to claim 1, wherein a reinforcing band is applied about the peripheral edge of said table-top plate.
Claim 7
Dependent Claim
33 words
A study-table according to claim 1, wherein said frames are of tubular construction, and the yoke or connecting portion joining said legs having means for preventing said frames from sliding along the floor.
Claim 8
Dependent Claim
59 words
A study-table according to claim 1, wherein the free distal ends of said legs include mutually cooperatively associated first and second bushing elements pivotally connected together with associated third bushing elements extending from opposite sides of table-top plate, wherey said U-shaped frames and said table-top plate are adapted to rotate about said common axis passing through said bushing assemblies.
Claim 9
Dependent Claim
57 words
A study-table according to claim 7, wherein said bushing assemblies are symetrically identical, and said first bushing element comprising a shaft element passing through said second bushing element and into said third bushing element, and fastener means connecting said bushing elements together as an assembly so that said bushing elements are rotatable with respect to each other.
Claim 10
Dependent Claim
121 words
A study-table according to claim 8, wherein said second bushing elements extend from the legs of said inner U-shaped frame and are disposed intermediate said outer U-shaped frame and said table-top plate; each of said first bushing elements having an annular sector-shaped recess engageable with an annular sector-shaped projection provided on a face of said second bushing element; each of said third bushing elements having an annular sector-shaped projection engageable with an annular sector-shaped recess provided on another face of said second bushing element; and the end surfaces of said annular sectorshaped recesses and said annular sector-shaped projections forming said liMit stop means upon said surfaces abutting up against each other upon the relative rotation of said frame and table-top plate.
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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) | 1976-09-03 | 1977-03-05 | 1977-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-03 | 1981-03-05 | 1981-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-03 | 1985-03-05 | 1985-09-04 | $7700.00 | Window Closed / Lapsed |