Patent US4270820A successfully refreshed from Google Patents.
← Back to Patent Explorer
US4270820A Expired / Lapsed US ⏱️ 0.0 years remaining

Electric component cabinet

Assignee: Individual
•
Filing: 1979-03-20
•
Granted: 1981-06-02
•
Expires: 1999-03-20
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract An elongate fabricated box-like cabinet for electrical apparatus comprising like horizontal top and bottom walls, like vertical end walls, and vertical front and rear control and service panels; the top and bottom walls have vertically spaced opposing inner surfaces with laterally spaced longitudinal flanged projections thereon defining vertically opening longitudinal grooves and horizontally opening longitudinal channels disposed toward the channels of adjacent projections; the vertical panels have upper and lower edge portions releasably engaged in the foremost and rearmost grooves in the top and bottom walls; the end walls have axially inwardly disposed surfaces engaged with opposing ends on the top and bottom walls and overlying the ends of the panels; the end walls have axially inwardly projecting retaining flanges engaging the inner surfaces of the top and bottom walls and the inner surfaces of said panels; the end walls carry screw fasteners engaged in the ends of related grooves defined by the projections on the top and bottom walls to releasably secure the cabinet parts in assembled relationship; the flanged projections within the cabinet provide mounting structure for electrical parts and components within the cabinet.

Inventors

  • 👤 James P. McMullan
  • 👤 Albert Stevens

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 09:40
CPC Classifications
H; H02; H02B; H02B1/00; H02B1/26; H02B1/46

Claims Analysis

Total Claims: 7
Claim 1
Independent Claim 262 words
An elongate box-like cabinet for electrical devices comprising like vertically spaced longitudinally extending horizontal top and bottom walls, like longitudinally spaced vertical end walls and vertical, laterally spaced longitudinally extending front and rear panels, said like top and bottom walls have vertically spaced opposing inner surfaces with vertical inwardly projecting longitudinally extending front, rear and laterally spaced intermediate flanged projections, the flanged projections define longitudinally outwardly and vertically opening grooves, a pair of adjacent flanged projections on the top and bottom walls define horizontally opening and opposing longitudinal channels defining longitudinally outwardly and inwardly opening ways at the inner surfaces of the top and bottom walls, said vertical longitudinally extending front and rear panels have upper and lower edge portions slidably engaged in and retained by related opposing grooves in the front and rear flanged projections on the top and bottom walls, said like vertical end walls have longitudinally inwardly disposed inner surfaces in stopped engagement with opposing related ends of the top and bottom walls, longitudinally inwardly projecting retaining flanges engaged with the inner surfaces of said top and bottom walls and screw fasteners carried by the end walls and threadedly engaged into the ends of the grooves in said intermediate projections on said top and bottom walls, said intermediate flanged projections have inwardly disposed supporting edges to support parts arranged within the cabinets, said grooves in the intermediate flanged projections accommodate mounting parts and fastening means for parts arranged within the cabinet, said channels cooperatively receive mounting parts for electrical components and parts positioned within the cabinet between the projections.
Claim 2
Dependent Claim 262 words
An elongate box-like cabinet for electrical devices comprising like vertically spaced longitudinally extending horizontal top and bottom walls, like longitudinally spaced vertical end walls and vertical, laterally spaced longitudinally extending front and rear panels, said like top and bottom walls have vertically spaced opposing inner surfaces with vertical inwardly projecting longitudinally extending front, rear and laterally spaced intermediate flanged projections, the flanged projections define longitudinally outwardly and vertically opening grooves, a pair of adjacent flanged projections on the top and bottom walls define horizontally opening and opposing longitudinal channels defining longitudinally outwardly and inwardly opening ways at the inner surfaces of the top and bottom walls, said vertical longitudinally extending front and rear panels have upper and lower edge portions slidably engaged in and retained by related opposing grooves in the front and rear flanged projections on the top and bottom walls, said like vertical end walls have longitudinally inwardly disposed inner surfaces in stopped engagement with opposing related ends of the top and bottom walls, longitudinally inwardly projecting retaining flanges engaged with the inner surfaces of said top and bottom walls and screw fasteners carried by the end walls and threadedly engaged into the ends of the grooves in said intermediate projections on said top and bottom walls, said intermediate flanged projections have inwardly disposed supporting edges to support parts arranged within the cabinets, said grooves in the intermediate flanged projections accommodate mounting parts and fastening means for parts arranged within the cabinet, said channels cooperatively receive mounting parts for electrical components and parts positioned within the cabinet between the projections.
Claim 3
Dependent Claim 46 words
The cabinet structure set forth in claim 1 wherein each of the flanged projections defines a horizontal channel disposed towards its next adjacent flanged projection to define a plurality of laterally spaced parallel ways extending longitudinally of the inner surfaces of the top and bottom walls.
Claim 4
Dependent Claim 36 words
The cabinet set forth in claim 1 wherein the retaining flanges on the end walls occur within the end portions of said ways and have portions engaged in and retained by the ends of the channels.
Claim 5
Dependent Claim 36 words
The cabinet set forth in claim 2 wherein the retaining flanges on the end walls occur within the end portions of said ways and have portions engaged in and retained by the ends of the channels.
Claim 6
Dependent Claim 205 words
An elongate box-like cabinet for electrical devices comprising like vertically spaced longitudinally extending horizontal top and bottom walls, like longitudinally spaced vertical end walls and vertical laterally spaced longitudinally extending front and rear panels, said top and bottom walls have vertically spaced opposing inner surfaces with vertically inwardly projecting longitudinally extending front and rear flange-like projections defining longitudinally extending longitudinally outwardly and vertically opening grooves and laterally spaced intermediate projections with longitudinally outwardly disposed surfaces substantially coplanar with the ends of those walls, said vertical longitudinally extending front and rear panels have inner and outer surfaces and have upper and lower horizontal edge portions slidably engaged in and retained by related opposing grooves in said front and rear projections on the top and bottom walls, said like vertical end walls have longitudinally inwardly disposed inner surfaces in stopped engagement with opposing related ends of the top and bottom walls and overlie the open ends of the grooves and the ends of said panels and have longitudinally inwardly projecting retaining flanges engaged with the inner surfaces of said top and bottom walls and said panels and screw fasteners carried by the end walls and threadedly engaged into the intermediate projections on the top and bottom walls.
Claim 7
Dependent Claim 205 words
An elongate box-like cabinet for electrical devices comprising like vertically spaced longitudinally extending horizontal top and bottom walls, like longitudinally spaced vertical end walls and vertical laterally spaced longitudinally extending front and rear panels, said top and bottom walls have vertically spaced opposing inner surfaces with vertically inwardly projecting longitudinally extending front and rear flange-like projections defining longitudinally extending longitudinally outwardly and vertically opening grooves and laterally spaced intermediate projections with longitudinally outwardly disposed surfaces substantially coplanar with the ends of those walls, said vertical longitudinally extending front and rear panels have inner and outer surfaces and have upper and lower horizontal edge portions slidably engaged in and retained by related opposing grooves in said front and rear projections on the top and bottom walls, said like vertical end walls have longitudinally inwardly disposed inner surfaces in stopped engagement with opposing related ends of the top and bottom walls and overlie the open ends of the grooves and the ends of said panels and have longitudinally inwardly projecting retaining flanges engaged with the inner surfaces of said top and bottom walls and said panels and screw fasteners carried by the end walls and threadedly engaged into the intermediate projections on the top and bottom walls.

References Cited (Backward Citations)

US3279871A Cited
US3347608A Cited
US3623784A Cited
US3779177A Cited
US4034871A Cited
US3901571A Cited
US3917757A Cited
US3997820A Cited
US4109294A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1984-06-01 1984-12-01 1985-06-02 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1988-06-01 1988-12-01 1989-06-02 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1992-06-01 1992-12-01 1993-06-02 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag