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US3575313A Expired / Lapsed US ⏱️ 0.0 years remaining

Mounting means for plastic outlet boxes

Assignee: Midland Ross Corp
•
Filing: 1969-05-12
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Granted: 1971-04-20
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Expires: 1989-05-12
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Abstract

Abstract A plastic box, when molded, is provided with end extensions adapted to receive metal mounting elements. The metal mounts permit positive and repetitive use of fastening means, including self-threading screws, for the support of a receptacle and substantial flush mounting of the box, especially in thin wall construction.

Inventors

  • 👤 Robert S Trachtenberg
  • 👤 Julius Earl Kreuzer

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 22:08
CPC Classifications
H; H02; H02G; H02G3/00; H02G3/02; H02G3/08; H02G3/12; H02G3/123

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 193 words
Plastic outlet box mounting means, comprising in combination an elongated thickened section on each end of the box paralleling the front edge thereof, said section having a front side flush with the front face of the box and having a rearward depth substantially less than the depth of the box and terminating in a shoulder at its rear side, said section further containing a pair of spaced parallel slots extending substantially perpendicular to the front face of said box and extending through the entire depth of said section; and a metal mounting bracket for each end of said box, each of said brackets having a face portion containing mounting holes through which panel mounting means can be inserted and a pair of leg elements extending substantially perpendicularly from said face portion, the spacing between said leg elements being substantially the same as the spacing between said parallel slots, each leg element being bifurcated and longer than the depth of said slots and terminating in outwardly extendinG projections whereby when the leg elements are transversely pressed together and completely inserted into said slots the projections snap out to be retained by said shoulder face.
Claim 2
Dependent Claim 193 words
Plastic outlet box mounting means, comprising in combination an elongated thickened section on each end of the box paralleling the front edge thereof, said section having a front side flush with the front face of the box and having a rearward depth substantially less than the depth of the box and terminating in a shoulder at its rear side, said section further containing a pair of spaced parallel slots extending substantially perpendicular to the front face of said box and extending through the entire depth of said section; and a metal mounting bracket for each end of said box, each of said brackets having a face portion containing mounting holes through which panel mounting means can be inserted and a pair of leg elements extending substantially perpendicularly from said face portion, the spacing between said leg elements being substantially the same as the spacing between said parallel slots, each leg element being bifurcated and longer than the depth of said slots and terminating in outwardly extendinG projections whereby when the leg elements are transversely pressed together and completely inserted into said slots the projections snap out to be retained by said shoulder face.
Claim 3
Dependent Claim 29 words
The combination according to claim 1 wherein said projections have a rearwardly converging taper away from said face portion to facilitate assembly of said leg elements into said slots.
Claim 4
Dependent Claim 29 words
The combination according to claim 1 wherein the face portion of said bracket has a further hole for receiving a screw to secure an electrical receptacle within said box.

References Cited (Backward Citations)

US2374622A Cited
US3402954A Cited
US3392943A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1974-04-19 1974-10-19 1975-04-20 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1978-04-19 1978-10-19 1979-04-20 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1982-04-19 1982-10-19 1983-04-20 $7700.00 Window Closed / Lapsed

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