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US3590753A Expired / Lapsed US ⏱️ 0.0 years remaining

Table corner assemblies

Assignee: Mitchell Manufacturing Co
•
Filing: 1969-12-17
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Granted: 1971-07-06
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Expires: 1989-12-17
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Abstract

Abstract In a table having foldable legs there is provided an apron corner assembly including a resilient molded plastic element fitted over a metal supporting bracket, said bracket having projecting wings retained within the channel-shaped apron members and said plastic corner element being screwed to the underside of the table top to eliminate the need for welding and thereby increasing the variety of apron materials that can be utilized, said resilient corner element including an integral bottom pad which eliminates relative movement or marring of the table surfaces when said tables are folded and stacked or rested against each other.

Inventors

  • 👤 Robert O Blink
  • 👤 William C Lutzke
  • 👤 Frederick C Holtz
  • 👤 Robert W Schier

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-05 22:38
CPC Classifications
A; A47; A47B; A47B3/00; A47B3/002; A47B3/08; A47B7/00; A47B7/02; F; F16; F16B; F16B12/00; F16B12/44; F16B12/52

Claims Analysis

Total Claims: 12
Claim 1
Independent Claim 178 words
A table, comprising: a top; leg means movable to a raised position beneath said table top to permit the stacking of a plurality of tables; an apron member depending from the underside of said table top adjacent each edge thereof, the adjacent ends of said aprons at the corners of the table being spaced from each other; a rigid bracket member mounted between the spaced ends of said adjacent aprons, said bracket having a center portion and a pair of angularly disposed side wings positioned against the inner faces of the adjacent apron members; means retaining said bracket side wings in said position; and a resilient nonmetallic corner element mounted on said rigid bracket, said corner element including a front wall portion, a pair of sidewalls having elongated slotted openings through which said bracket wings project, and a bottom having a pad portion extending below said aprons to form a cushion when a plurality of said tables are stacked one on another or positioned on end and rested against each other to prevent marring of the table tops.
Claim 2
Dependent Claim 178 words
A table, comprising: a top; leg means movable to a raised position beneath said table top to permit the stacking of a plurality of tables; an apron member depending from the underside of said table top adjacent each edge thereof, the adjacent ends of said aprons at the corners of the table being spaced from each other; a rigid bracket member mounted between the spaced ends of said adjacent aprons, said bracket having a center portion and a pair of angularly disposed side wings positioned against the inner faces of the adjacent apron members; means retaining said bracket side wings in said position; and a resilient nonmetallic corner element mounted on said rigid bracket, said corner element including a front wall portion, a pair of sidewalls having elongated slotted openings through which said bracket wings project, and a bottom having a pad portion extending below said aprons to form a cushion when a plurality of said tables are stacked one on another or positioned on end and rested against each other to prevent marring of the table tops.
Claim 3
Dependent Claim 19 words
The table recited in claim 1 wherein said apron members are channel-shaped with inwardly directed top and bottom flanges.
Claim 4
Dependent Claim 28 words
The table recited in claim 2 wherein the corner portions of said apron top and bottom flanges are deflected to projected shoulders forming said bracket wing retaining means.
Claim 5
Dependent Claim 31 words
The table recited in claim 3 wherein said apron top flanges are provided with spaced apertures through which screws are projected to secure said aprons to the underside of said table.
Claim 6
Dependent Claim 15 words
The table recited in claim 1 wherein said nonmetallic corner element is molded of plastic.
Claim 7
Dependent Claim 32 words
The table recited in claim 5 wherein said plastic material is characterized by a coefficient of friction adapted to prevent the tables from sliding or shifting about when in a stacked condition.
Claim 8
Dependent Claim 51 words
The table recited in claim 1 wherein said nonmetallic corner element includes a back portion with a rearwardly projecting flange on its upper edge, and wherein a screw is projected through said flange and into the underside of the table top to securely retain said corner unit in its assembled condition.
Claim 9
Dependent Claim 26 words
The table recited in claim 1 wherein said corner element sidewalls include portions formed on an angle corresponding to the angular relationship of said adjacent aprons.
Claim 10
Dependent Claim 17 words
The table recited in claim 1 wherein said corner element front wall portion is concave in form.
Claim 11
Dependent Claim 423 words
A table comprising: a flat top; leg means movable to a raised position immediately beneath said table top to permit a plurality of said tables to be stacked one on top of another; an apron member depending from the underside of said table top adjacent each edge thereof, said apron members being channel-shaped with inwardly directed top and bottom flanges, the adjacent ends of said aprons at the corners Of the table being spaced from each other, and the corner portions of said apron top and bottom flanges being deflected to from bracket-retaining shoulders; a rigid metal bracket member mounted between the spaced ends of said adjacent aprons, said bracket having a concave front face with a hook formed therein and projecting outwardly and downwardly at a point spaced below the upper edge of said bracket member, an inwardly directed horizontal flange formed on the lower end of said bracket front face, and said bracket member having a pair of angularly disposed side wings fitted within said channel-shaped apron members and being retained therein by said flange bracket-retaining shoulders; a one-piece molded resilient plastic corner element mounted on and over said metal bracket, said plastic element having a concave front wall portion, a spaced concave intermediate wall terminating below the upper edge of said front wall portion upon which said bracket hook members bears, the concave front face of said bracket being positioned against the back of said plastic element intermediate wall, a backwall on said plastic element spaced from said intermediate wall, sidewall portions on said plastic element arranged at an angle corresponding substantially to the angular disposition of said apron members, rearwardly extending sidewall portion separated from said angled sidewall portions by elongated slotted openings, said metal bracket side wings projecting through said slotted openings and into said apron channels, a bottom formed on said resilient plastic element including a pad portion extending below said table apron members, said pads providing cushions when a plurality of said tables are stacked one on another to prevent the scratching of the table tops and the relative shifting movement of said stacked tables, the flange formed on the lower end of said metal bracket bearing against the bottom of said plastic element, and said plastic element including an integral horizontal flange extending rearwardly from the upper edge of said backwall, said flange having an aperture therethrough; and a screw projected through said plastic element top flange and into the underside of the table top to securely retain said corner unit in its assembled condition.
Claim 12
Dependent Claim 423 words
A table comprising: a flat top; leg means movable to a raised position immediately beneath said table top to permit a plurality of said tables to be stacked one on top of another; an apron member depending from the underside of said table top adjacent each edge thereof, said apron members being channel-shaped with inwardly directed top and bottom flanges, the adjacent ends of said aprons at the corners Of the table being spaced from each other, and the corner portions of said apron top and bottom flanges being deflected to from bracket-retaining shoulders; a rigid metal bracket member mounted between the spaced ends of said adjacent aprons, said bracket having a concave front face with a hook formed therein and projecting outwardly and downwardly at a point spaced below the upper edge of said bracket member, an inwardly directed horizontal flange formed on the lower end of said bracket front face, and said bracket member having a pair of angularly disposed side wings fitted within said channel-shaped apron members and being retained therein by said flange bracket-retaining shoulders; a one-piece molded resilient plastic corner element mounted on and over said metal bracket, said plastic element having a concave front wall portion, a spaced concave intermediate wall terminating below the upper edge of said front wall portion upon which said bracket hook members bears, the concave front face of said bracket being positioned against the back of said plastic element intermediate wall, a backwall on said plastic element spaced from said intermediate wall, sidewall portions on said plastic element arranged at an angle corresponding substantially to the angular disposition of said apron members, rearwardly extending sidewall portion separated from said angled sidewall portions by elongated slotted openings, said metal bracket side wings projecting through said slotted openings and into said apron channels, a bottom formed on said resilient plastic element including a pad portion extending below said table apron members, said pads providing cushions when a plurality of said tables are stacked one on another to prevent the scratching of the table tops and the relative shifting movement of said stacked tables, the flange formed on the lower end of said metal bracket bearing against the bottom of said plastic element, and said plastic element including an integral horizontal flange extending rearwardly from the upper edge of said backwall, said flange having an aperture therethrough; and a screw projected through said plastic element top flange and into the underside of the table top to securely retain said corner unit in its assembled condition.

References Cited (Backward Citations)

US2172687A Cited
US1535556A Cited
US2669496A Cited
US2889185A Cited
US3115108A Cited
US3256039A Cited
US3446345A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1974-07-05 1975-01-04 1975-07-06 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1978-07-05 1979-01-04 1979-07-06 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1982-07-05 1983-01-04 1983-07-06 $7700.00 Window Closed / Lapsed

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