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US3618804A Expired / Lapsed US ⏱️ 0.0 years remaining

Concealed trim clamp for electrical panelboards and other wiring cabinets

Assignee: General Electric Co
•
Filing: 1969-10-20
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Granted: 1971-11-09
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Expires: 1989-10-20
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Abstract

Abstract A concealed front cover or ''''trim'''' fastener for electrical panelboards or other wiring cabinets comprising four hooks fixedly attached to the inside of the front cover. Four support arms or brackets are attached to the inside of the panelboard or cabinet and have bent-over portions onto which the hooks of the front cover may be placed to support the front cover. The support arms are slidably adjustable in a direction perpendicular to the plane of the front cover (i.e., toward and away from the backwall of the cabinet). In one form, the cover is substantially larger than the cabinet, and when the cabinet is recessed into a wall, the outer edges of the front cover overlie peripheral portions of the wall and the cover is spaced away from the cabinet slightly. The support arms are drawn out to accommodate this spacing, and then fixed in place, such as by a nut and bolt. A locking screw mounted on a fixed portion of the cabinet is advanced after the front has been mounted in place and engages a bracket fixedly carried by the front cover and prevents the front cover from being raised so as to disengage the hooks from the adjustable support arms, thereby locking the front in place.

Inventors

  • 👤 Werner A Krause

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-02 09:22
CPC Classifications
H; H02; H02B; H02B1/00; H02B1/26; H02B1/40; H02B1/44; H02G; H02G3/00; H02G3/02; H02G3/08; H02G3/14; Y; Y10; Y10T; Y10T292/00; Y10T292/42; Y10T292/426; Y10T292/68; Y10T292/705

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 145 words
AN ELECTRICAL EQUIPMENT ENCLOSURE COMPRISING: A. A HOUSING HAVING A REAR WALL, A PLURALITY OF SIDEWALLS, AND AN OPEN FRONT; B. FRONT CLOSURE MEANS FOR CLOSING SAID OPEN FRONT OF SAID HOUSING COMPRISING A SUBSTANTIALLY FLAT MEMBER HAVING A DOOR THEREIN, SAID FLAT MEMBER HAVING A REAR SURFACE AND A FRONT SURFACE; C. MEANS MOUNTING SAID DOOR ON SAID FLAT MEMBER FOR MOVEMENT BETWEEN AN OPEN POSITION AND A CLOSED POSITION; D. AT LEAST ONE PAIR OF SUPPORT BRACKETS CARRIED BY SAID HOUSING SAID SUPPORT BRACKETS EACH HAVING AT LEAST ONE GENERALLY PLANAR SURFACE DISPOSED GENERALLY PARALLEL TO SAID FRONT CLOSURE; E. AT LEAST ONE PAIR OF HOOK MEMBERS FIXEDLY CARRIED ON SAID FRONT CLOSURE ENGAGING SAID SUPPORT BRACKETS; F. SAID SUPPORT BRACKETS BEING ADJUSTABLE INTO AND OUT OF SAID ENCLOSURE IN A DIRECTION NORMAL TO THE PLANE OF THE OPEN FRONT OF THE HOUSING.
Claim 2
Dependent Claim 145 words
AN ELECTRICAL EQUIPMENT ENCLOSURE COMPRISING: A. A HOUSING HAVING A REAR WALL, A PLURALITY OF SIDEWALLS, AND AN OPEN FRONT; B. FRONT CLOSURE MEANS FOR CLOSING SAID OPEN FRONT OF SAID HOUSING COMPRISING A SUBSTANTIALLY FLAT MEMBER HAVING A DOOR THEREIN, SAID FLAT MEMBER HAVING A REAR SURFACE AND A FRONT SURFACE; C. MEANS MOUNTING SAID DOOR ON SAID FLAT MEMBER FOR MOVEMENT BETWEEN AN OPEN POSITION AND A CLOSED POSITION; D. AT LEAST ONE PAIR OF SUPPORT BRACKETS CARRIED BY SAID HOUSING SAID SUPPORT BRACKETS EACH HAVING AT LEAST ONE GENERALLY PLANAR SURFACE DISPOSED GENERALLY PARALLEL TO SAID FRONT CLOSURE; E. AT LEAST ONE PAIR OF HOOK MEMBERS FIXEDLY CARRIED ON SAID FRONT CLOSURE ENGAGING SAID SUPPORT BRACKETS; F. SAID SUPPORT BRACKETS BEING ADJUSTABLE INTO AND OUT OF SAID ENCLOSURE IN A DIRECTION NORMAL TO THE PLANE OF THE OPEN FRONT OF THE HOUSING.
Claim 3
Dependent Claim 28 words
An electrical equipment enclosure as set forth in claim 1 wherein at least one additional paiR of support brackets and one additional pair of hook members are provided.
Claim 4
Dependent Claim 109 words
An electrical equipment enclosure as set forth in claim 1 wherein said enclosure also comprises locking means carried by said housing and movable between a first position in which it obstructs movement of said front closure means in a plane parallel to said plane of said open front of said housing to thereby prevent disengagement of said hooks from said support brackets and removal of said front closure means, and a second position in which it permits movement of said front closure means in a plane parallel to said plane of said open front of said housing at least enough to disengage said hook members from said support brackets.
Claim 5
Dependent Claim 52 words
An electrical equipment enclosure as set forth in claim 1 wherein said sidewalls of said housing include inwardly turned flanges having a plurality of notches, each of said notches slidably receiving a portion of one of said support brackets, and support means inside said housing slidably supporting each of said support brackets.

References Cited (Backward Citations)

US288189A Cited
US946646A Cited
US1087551A Cited
US1653293A Cited
US2630235A Cited
US3465914A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1974-11-08 1975-05-10 1975-11-09 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1978-11-08 1979-05-10 1979-11-09 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1982-11-08 1983-05-10 1983-11-09 $7700.00 Window Closed / Lapsed

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