Watt-hour meter cover with battery hatch reset switch and optical communication port

• US 5,049,810 A
• Filed: 09/22/1989
• Issued: 09/17/1991
• Est. Priority Date: 09/22/1989
• Status: Expired due to Term

• Current Assignee: Landis+Gyr AG (Landis+Gyr Group AG)
• Original Assignee: Landis & Gyr Metering, Inc. (Landis+Gyr Group AG)
• Inventors: Kirby, Lane C., Tate, Ronald C., Gatz, Christopher J., Moore, Lester C.
• Primary Examiner(s): Karlsen, Ernest F.
• Application Number:
  US07/410,980
• Time in Patent Office: 725 Days
• Field of Search: 235/144 MA, 324/103 R, 324/110, 324/157, 324/116, 324/142, 324/156, 361/364
• US Class Current: 324/156
• CPC Class Codes: G01R 22/065 related to mechanical aspects

Abstract

A watt-hour meter cover is provided which has an optical coupler including a conduit, lens, and means for engaging an external programmer/reader. The conduit has improved signal transmission properties. The cover may be designed to disable test mode hardware when replaced after meter servicing. A battery access hatch and module with a reset and scroll actuator is installed through the cover.

Claims

1. A cover for an energy consumption meter, the meter having a reset mode of operation and a meter body having a battery mounted therein and carrying reset mode hardware for actuating the meter reset mode, the cover comprising:

a cover member mountable over the meter body;

a modular battery access hatch assembly including;

a hatch opening defined in said cover member for access to the battery therethrough when said cover member is mounted over the meter body;

a hatch cover mountable over said opening to close said hatch opening;

a resetting switch carried by said hatch cover and movable externally of said cover member to a reset position in which said resetting switch actuates the reset mode hardware;

a biasing means for normally biasing said actuating means away from said reset position; and

a latching means for latching said hatch cover onto said cover member.

2. The cover of claim 1 wherein said meter has means for providing a scroll mode and said hatch cover further includes a scrolling switch for actuating said mode.

3. The cover of claim 2 wherein said scrolling switch and resetting switch are present as a single switch.

4. The cover of claim 3 wherein the scroll mode is actuated by the rotation of said switch in one direction and the reset mode is actuated by rotation of said switch in the opposite direction.

5. The cover of claim 4 wherein said biasing means biases said switch in a position intermediate the actuation of the reset mode and the actuation of the scroll mode.

6. The cover of claim 1 wherein said resetting switch includes a paddle and a pressure operable switch, wherein reset switch operates to rotate said paddle to depress said pressure operable switch.

7. The cover of claim 1 wherein said reset switch includes a knob, a coupling mated with said knob and having a wedge-shaped female portion, a wedge-shaped male plunger received by said female portion and keyed to mate with a corresponding switch actuator.

8. The cover of claim 2 wherein said knob and said coupling are keyed for facilitating removal of said hatch cover and replacement of said knob and said coupling after the replacement of said cover.

9. The cover of claim 1 wherein said reset switch is positionable to prevent unlatching of said cover.

10. The cover of claim 9 wherein said latching means and said reset switch are provided with means for receiving a security tie, said security tie locking said latching means and said reset switch together.

11. The cover of claim 10 wherein said latching means includes a quarter turn fastener.