Patent US3714906A successfully refreshed from Google Patents.
US3714906A
Expired / Lapsed
US
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Table units
Assignee: Individual
•
Filing: 1971-02-08
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Granted: 1973-02-06
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Expires: 1991-02-08
Abstract
Abstract A system of table units comprising one or more basic units of circular form and auxiliary units whose peripheral shape includes a concavity of the same curvature as the basic unit and means for effecting edge-to-edge releasable connection of said main and auxiliary units.
Inventors
- 👤 P Finestone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:48
CPC Classifications
A; A47; A47B; A47B7/00; A47B7/02; A47B13/00; A47B13/08; A47B13/10
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
115 words
A system of table top units comprising at least two basic units and at least one auxiliary unit having a peripheral edge which includes two concavities dimensioned to abut two convex segments of the respective peripheral edges of two basic units connectable by said auxiliary unit, the units being provided with means to support the auxiliary unit at the abuttable edges of the table tops of the basic units and the auxiliary unit, which auxiliary unit has a dimension, in the direction bisecting the unit between its peripheral concavities, not less than the dimension of the basic units in the direction which lies parallel to said bisecting direction in the connected condition of the units.
Claim 2
Independent Claim
115 words
A system of table top units comprising at least two basic units and at least one auxiliary unit having a peripheral edge which includes two concavities dimensioned to abut two convex segments of the respective peripheral edges of two basic units connectable by said auxiliary unit, the units being provided with means to support the auxiliary unit at the abuttable edges of the table tops of the basic units and the auxiliary unit, which auxiliary unit has a dimension, in the direction bisecting the unit between its peripheral concavities, not less than the dimension of the basic units in the direction which lies parallel to said bisecting direction in the connected condition of the units.
Claim 3
Independent Claim
115 words
A system of table top units comprising at least two basic units and at least one auxiliary unit having a peripheral edge which includes two concavities dimensioned to abut two convex segments of the respective peripheral edges of two basic units connectable by said auxiliary unit, the units being provided with means to support the auxiliary unit at the abuttable edges of the table tops of the basic units and the auxiliary unit, which auxiliary unit has a dimension, in the direction bisecting the unit between its peripheral concavities, not less than the dimension of the basic units in the direction which lies parallel to said bisecting direction in the connected condition of the units.
Claim 4
Independent Claim
115 words
A system of table top units comprising at least two basic units and at least one auxiliary unit having a peripheral edge which includes two concavities dimensioned to abut two convex segments of the respective peripheral edges of two basic units connectable by said auxiliary unit, the units being provided with means to support the auxiliary unit at the abuttable edges of the table tops of the basic units and the auxiliary unit, which auxiliary unit has a dimension, in the direction bisecting the unit between its peripheral concavities, not less than the dimension of the basic units in the direction which lies parallel to said bisecting direction in the connected condition of the units.
Claim 5
Dependent Claim
45 words
A system as claimed in claim 1, wherein the connecting means comprises permanent magnetic elEments and pole pieces at the peripheral edge of one unit and a ferromagnetic body providing a path closing the magnetic flux secured at the peripheral edge of a second unit.
Claim 6
Dependent Claim
41 words
A system as claimed in claim 2, wherein a peripheral edge of one unit houses a pair of arcuate pole pieces sunk into a similarly shaped slot in said edge, and at least one permanent magnetic element between said pole pieces.
Claim 7
Dependent Claim
33 words
A system as claimed in claim 2, wherein the ferro-magnetic flux closing body is a strip secured to said peripheral edge with its thickness dimension in a plane parallel to the table surface.
Claim 8
Dependent Claim
57 words
A system as claimed in claim 1, wherein the connecting means comprises permanent magnetic means exerting an attraction parallel to the common plane of the table units and locating means preventing relative movement of said table units normal to said common plane whilst the permanent magnetic means are holding the table units in edge to edge contact.
Claim 9
Dependent Claim
30 words
A system as claimed in claim 5, wherein said locating means are projections upon an edge of one unit engaging in a slot in the edge of the other unit.
Claim 10
Dependent Claim
39 words
A system as claimed in claim 2, wherein the releasable connecting means comprise mechanical parts having no effect on the permanent magnetic flux path and serving to prevent relative movement of the table units normal to their common plane.
Claim 11
Dependent Claim
36 words
A system as claimed in claim 1, wherein the units are releasably interconnected by first means holding said units in edge-to-edge contact and second means preventing relative movement normal to the common plane of said units.
Claim 12
Dependent Claim
19 words
A system as claimed in claim 8, wherein said first means are ferromagnetic and said second means are mechanical.
Claim 13
Dependent Claim
21 words
A system as claimed in claim 1, wherein the basic unit is circular and each auxiliary unit has two semi-circular concavities.
Claim 14
Dependent Claim
32 words
A system as claimed in claim 10, wherein at least one auxiliary unit has a peripheral edge defined by two opposed side edges and two opposed semi-circular concavities at the respective ends.
Claim 15
Dependent Claim
35 words
A system as claimed in claim 10, wherein at least one auxiliary unit has a peripheral edge defined by two opposed and parallel arcuate side edges and two opposed semi-circular concavities at the respective ends.
Claim 16
Dependent Claim
21 words
A system as claimed in claim 10, wherein at least one auxiliary unit has a peripheral edge including three semi-circular concavities.
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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) | 1976-02-06 | 1976-08-07 | 1977-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-06 | 1980-08-07 | 1981-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-06 | 1984-08-07 | 1985-02-06 | $7700.00 | Window Closed / Lapsed |