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US4566664A Expired / Lapsed US ⏱️ 0.0 years remaining

Rotatable mounting unit

Assignee: Individual
•
Filing: 1984-06-04
•
Granted: 1986-01-28
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Expires: 2004-06-04
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Abstract

Abstract There is disclosed a rotatable mounting unit including two molded plastic parts, one of which is circular and adapted to be screwed to a counter, shelf, or the like as a base while the other part is rectangular and screwed to a television receiver of the like and acts as a platform therefor. The platform and base are secured together by placing a recess in the platform over a cylinder in the base in a manner to cause a post in the center of the recess to enter an opening in the center of the base with two lugs extending from the post passing through slots extending from the opening in the base. Upon rotation of the platform relative to the base the lugs slightly distort to firmly engage a flange around the opening in the base locking the two parts together but allowing them to be rotated. Detents consisting of button-like projections on the platform cooperating with holes around the cylinder of the base provide a detent function at approximately 20 degree intervals of rotation. Because the cylinder of the base extends into a recess in the platform, the overall height of the structure is low; screws are concealed when the unit is assembled.

Inventors

  • 👤 Jimmie W. Donald

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-06 14:38
CPC Classifications
A; A47; A47B; A47B49/00; A47B11/00; F; F16; F16M; F16M11/00; F16M11/02; F16M11/04; F16M11/06; F16M11/08; A47B2200/00; A47B2200/04; F16M2200/00; F16M2200/08

Claims Analysis

Total Claims: 21
Claim 1
Independent Claim 171 words
A rotatable mounting unit for a cabinet or box comprising a base having a cylindrical projection comprising a recessed portion forming a flange with an opening in the center thereof, a plurality of equally spaced first detent elements around the top of said projection, at least one notch extending outwardly into said flange, a mounting platform having a circular rim thereon forming a recess to receive said projection, and a post having at least one lug extending radially therefrom which aligns with and passes into said notch for one rotational relation of said base and platform causing said lug to engage said flange and couple said platform to said base, said lug being positioned on said post so that it does not extend entirely through said notch and is resiliently deformable to pass out of said notch and onto said flange, said platform having a plurality of second detent elements located to match with said first detent elements for at least six relative rotational positions of said base and said platform.
Claim 2
Dependent Claim 171 words
A rotatable mounting unit for a cabinet or box comprising a base having a cylindrical projection comprising a recessed portion forming a flange with an opening in the center thereof, a plurality of equally spaced first detent elements around the top of said projection, at least one notch extending outwardly into said flange, a mounting platform having a circular rim thereon forming a recess to receive said projection, and a post having at least one lug extending radially therefrom which aligns with and passes into said notch for one rotational relation of said base and platform causing said lug to engage said flange and couple said platform to said base, said lug being positioned on said post so that it does not extend entirely through said notch and is resiliently deformable to pass out of said notch and onto said flange, said platform having a plurality of second detent elements located to match with said first detent elements for at least six relative rotational positions of said base and said platform.
Claim 3
Dependent Claim 27 words
Apparatus as recited in claim 1 wherein said platform is rectangular and its width and length are each greater than the greatest transverse dimension of said base.
Claim 4
Dependent Claim 30 words
Apparatus as recited in claim 1 wherein said detent elements are positioned so that they are not matched at the orientation for which said lug is aligned with said notch.
Claim 5
Dependent Claim 30 words
Apparatus as recited in claim 1 wherein said cylindrical projection is a snug fit in said recess thereby essentially restraining lateral movement of said platform with respect to said base.
Claim 6
Dependent Claim 24 words
Apparatus as recited in claim 1 wherein said platform is rectangular and is provided with a plurality of screw holes at each corner thereof.
Claim 7
Dependent Claim 38 words
Apparatus as recited in claim 1 wherein said base is circular and its diameter is less than the smallest transverse dimension of said mounting platform and further including screw holes in said base and in said mounting platform.
Claim 8
Dependent Claim 53 words
Apparatus as recited in claim 1 wherein the height of said cylindrical projection, the depth of said recess and the thickness of said base and said mounting platform are such that the lower edge of said mounting platform is less than about 1/8 of an inch above the bottom surface of said base.
Claim 9
Dependent Claim 253 words
A rotatable mounting unit for installation in a recreational vehicle or the like comprising a unitary base of homogenous plastic material having in the center thereof a cylindrical upward projection from about three to about ten inches in diameter and comprising a recessed portion with a flange forming a smaller generally circular opening in the center thereof and at least three equally spaced aperture detent elements around and slightly spaced from the periphery of the top of said projections, said opening having a pair of oppositely extending notches and a unitary mounting platform of homogenous plastic material having a circular ring on the bottom thereof forming a recess to receive said projection, and a post at the center of said recess adapted to enter said recessed portions, said post having a pair of lugs extending radially therefrom which align with and pass into said notches for at least one rotational relation of said base and said platform, relative rotation of said base and platform causing said lug to engage the edge of said base around said opening and couple said platform to said base, said lug being positioned on said post so that it does not extend entirely through said notch and is resiliently deformable to pass out of said notch and onto said flange, said platform having a plurality of projecting detent elements less in number than said aperture detent elements and located to match with said aperture detent elements for at least six relative positions of said base and said platform.
Claim 10
Dependent Claim 253 words
A rotatable mounting unit for installation in a recreational vehicle or the like comprising a unitary base of homogenous plastic material having in the center thereof a cylindrical upward projection from about three to about ten inches in diameter and comprising a recessed portion with a flange forming a smaller generally circular opening in the center thereof and at least three equally spaced aperture detent elements around and slightly spaced from the periphery of the top of said projections, said opening having a pair of oppositely extending notches and a unitary mounting platform of homogenous plastic material having a circular ring on the bottom thereof forming a recess to receive said projection, and a post at the center of said recess adapted to enter said recessed portions, said post having a pair of lugs extending radially therefrom which align with and pass into said notches for at least one rotational relation of said base and said platform, relative rotation of said base and platform causing said lug to engage the edge of said base around said opening and couple said platform to said base, said lug being positioned on said post so that it does not extend entirely through said notch and is resiliently deformable to pass out of said notch and onto said flange, said platform having a plurality of projecting detent elements less in number than said aperture detent elements and located to match with said aperture detent elements for at least six relative positions of said base and said platform.
Claim 11
Dependent Claim 27 words
Apparatus as recited in claim 8 wherein said platform is rectangular and its width and length are each greater than the greatest transverse dimension of said base.
Claim 12
Dependent Claim 30 words
Apparatus as recited in claim 8 wherein said detent elements are positioned so that they are not matched at the orientation for which said lug is aligned with said notch.
Claim 13
Dependent Claim 29 words
Apparatus as recited in claim 8 wherein said cylindrical projection is a snug fit in said recess thereby restraining lateral movement of said platform with respect to said base.
Claim 14
Dependent Claim 25 words
Apparatus as recited in claim 8 wherein said base is circular and its diameter is less than the smallest transverse dimension of said mounting platform.
Claim 15
Dependent Claim 52 words
Apparatus as recited in claim 8 wherein the height of said cylindrical projection, the depth of said recess and the thickness of said base and mounting platform are such that the lower edge of said mounting platform is less than about 1/8 of an inch above the bottom surface of said base.
Claim 16
Dependent Claim 253 words
A rotatable mounting unit for a television receiver or the like comprising a base having a cylindrical projection from about three to about ten inches in diameter and comprising a recessed portion with a flange forming a smaller generally circular opening in the center thereof, a plurality of equally spaced first detent elements around and near the periphery of the top of said projections, said opening having a flange around the periphery thereof and at least one notch extending outwardly into said flange, a mounting platform having a circular rim on the bottom thereof forming a recess to snugly receive said projection, a post at the center of said recess adapted to enter said recessed portions, said post having at least one lug extending radially therefrom which aligns with and passes into said notch for one rotational relation of said base and said platform, relative rotation of said base and platform causing said lug to engage said flange and couple said platform to said base, said lug being positioned on said post so that it does not extend entirely through said notch and is resiliently deformable to pass out of said notch and onto said flange, said platform having a plurality of second detent elements unequal in number to said first detent elements and located to match with said first detent elements for at least six relative rotational positions of said base and said platform, said detent elements not being matched at the position for which said lug is aligned with said notch.
Claim 17
Dependent Claim 253 words
A rotatable mounting unit for a television receiver or the like comprising a base having a cylindrical projection from about three to about ten inches in diameter and comprising a recessed portion with a flange forming a smaller generally circular opening in the center thereof, a plurality of equally spaced first detent elements around and near the periphery of the top of said projections, said opening having a flange around the periphery thereof and at least one notch extending outwardly into said flange, a mounting platform having a circular rim on the bottom thereof forming a recess to snugly receive said projection, a post at the center of said recess adapted to enter said recessed portions, said post having at least one lug extending radially therefrom which aligns with and passes into said notch for one rotational relation of said base and said platform, relative rotation of said base and platform causing said lug to engage said flange and couple said platform to said base, said lug being positioned on said post so that it does not extend entirely through said notch and is resiliently deformable to pass out of said notch and onto said flange, said platform having a plurality of second detent elements unequal in number to said first detent elements and located to match with said first detent elements for at least six relative rotational positions of said base and said platform, said detent elements not being matched at the position for which said lug is aligned with said notch.
Claim 18
Dependent Claim 27 words
Apparatus as recited in claim 14 wherein said platform is rectangular and its width and length are both greater than the greatest transverse dimension of said base.
Claim 19
Dependent Claim 25 words
Apparatus as recited in claim 14 wherein said platform is oblong rectangular and is provided with a plurality of screw holes at each corner thereof.
Claim 20
Dependent Claim 34 words
Apparatus as recited in claim 16 wherein said base is circular and its said diameter is less than the smallest transverse dimension of said mounting platform and further including screw holes in said base.
Claim 21
Dependent Claim 53 words
Apparatus as recited in claim 16 where the height of said cylindical projection, the depth of said recess and the thickness of said base and said mounting platform are such that the lower edge of said mounting platfrom is less than about 1/8 of an inch above the bottom surface of said base.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1989-01-27 1989-07-29 1990-01-28 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1993-01-27 1993-07-29 1994-01-28 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1997-01-27 1997-07-29 1998-01-28 $7700.00 Window Closed / Lapsed

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