Watthour meter enclosure for use in remote meter reading packages

• US 4,110,814 A
• Filed: 12/29/1976
• Issued: 08/29/1978
• Est. Priority Date: 12/29/1976
• Status: Expired due to Term

• Current Assignee: ABB Power T&D Co Inc (ABB Limited)
• Original Assignee: Westinghouse Electric Corporation (Paramount Global (f/k/a ViacomCBS Inc.))
• Inventors: Britton, James S., Morgan, David W.
• Primary Examiner(s): Tolin, Gerald P.
• Application Number:
  US05/755,375
• Time in Patent Office: 608 Days
• Field of Search: 340/201 P, 324/110, 324/156, 361/364, 361/366, 361/371, 361/369, 361/372
• US Class Current: 361/666
• CPC Class Codes: H02B 1/03 for energy meters

Abstract

An enclosure for watthour meters includes a cover having an opening for connecting a meter data sending unit within the enclosure to an adjacent remote meter reading terminal unit. A cover locking rim has locking tabs for securing the cover to a meter base assembly so that the cover is rotatably positionable relative to the base. The rotated positions of the cover opening permit different orientations of a remote meter reading package at a fixed meter mounting position.

Claims

1. A watthour meter enclosure comprising:

a cup-shaped cover including a closed forward end, a side portion extending to an open end, a side portion including an opening, and a circular mounting flange extending radially outward at said open end along front and rear radial surfaces;

a circular locking rim having a forward portion overlapping said front radial surface of the cover flange and an integral cylindrical body extending rearward from said front portion so that the inner wall of said cylindrical body extends over and beyond the outer periphery of the cover flange, said locking rim including a plurality of locking tab members carried on said inner wall of said cylindrical body and extending from said inner wall in separately spaced relationships from each other and from the cover flange so that the cover flange is freely rotatable within said locking rim;

a base assembly supporting a watthour meter movement and a meter data sending unit responsive to said movement, said sending unit including plural conductors intended for connection externally of said cover, said base assembly including plural arcuate attachment lugs extending radially at the outer periphery thereof in a spaced apart relationship, said attachment lugs having forward and rear radial surfaces thereon, said attachment lugs rotationally receiving said plurality of locking tabs in engagement with the rear radial surfaces thereof and attaching said cover to said base assembly so as to be rotatable to a predetermined position relative to said locking rim and said base assembly, the side opening of said cover having a desired arcuate position and receiving said plural conductors with said cover being at said predetermined position; and

a rotational locking arrangement including at least one recess extending into said rear radial surface of the cover flange at a predetermined arcuate position relative to the side opening, a hole in said base assembly aligned with said recess in said cover flange with said cover opening being in said desired arcuate position, and fastener means extending within both the aligned hole and recess to retain said cover in the predetermined rotated position thereof.

2. The watthour meter enclosure as claimed in claim 1 wherein either one of said hole of said base assembly or said recess of said cover includes a threaded portion and said fastener means includes a screw threadably received by the threaded portion.

3. The watthour meter enclosure as claimed in claim 1 wherein said cup-shaped cover includes a coupling assembly mounted over said opening, said coupling assembly including a conduit part extending from said cover for receiving and directing said plurality of conductors away from said cover.

4. The watthour meter enclosure as claimed in claim 3 wherein said coupling assembly includes an annular plate positioned inside the cover around the cover side opening, said plate, said conduit part, and said cover side portion include mutually aligned holes, and wherein the coupling assembly further includes screw fasteners mounted in said mutually aligned holes for clamping said coupling assembly to said meter cover.

5. The watthour meter enclosure as claimed in claim 1 wherein said locking tab members have an L-shaped cross-sectional configuration with one portion thereof attached to said locking rim so that a second resilient portion thereof extends behind the meter base and resiliently engages said rear radial sides of said attachment lugs.

6. The watthour meter enclosure as claimed in claim 5 wherein said cover includes a plurality of recesses disposed in a circular relationship with respect to each other and said first named recess so that each recess is alignable with said hole in said meter base for receiving said fastener means when said cover is in alternate rotated positions relative to said base assembly.