Utility meter adapter

• US 6,100,816 A
• Filed: 01/16/1998
• Issued: 08/08/2000
• Est. Priority Date: 01/16/1998
• Status: Expired due to Term

• Current Assignee: Landis+Gyr Innovations Incorporated (Landis+Gyr Group AG)
• Original Assignee: CellNet Data Systems, Inc. (Landis+Gyr Group AG)
• Inventors: Moore, Robby J.
• Primary Examiner(s): Horabik, Michael
• Assistant Examiner(s): Edwards, Jr., Timothy
• Application Number:
  US09/008,273
• Time in Patent Office: 935 Days
• Field of Search: 340/870.02, 340/870.32, 340/870.33, 73/272 A, 73/273, 73/277, 73/861.77, 73/861.78, 73/861.79, 73/861.93, 73/861.94, 73/861.87
• US Class Current: 340/870.02
• CPC Class Codes: G01D 4/004 Remote reading of utility meters to a fixed location
• CPC Class Codes: G01D 4/008 Modifications to installed utility meters to enable remote reading
• CPC Class Codes: G01R 22/065 related to mechanical aspects
• CPC Class Codes: Y02B 90/20 Smart grids as enabling technology in buildings sector smart grids supporting the management or operation of end-user stationary applications in general, or like technologies with no associated climate change mitigation effect Y04S20/00
• CPC Class Codes: Y04S 20/30 Smart metering, e.g. specially adapted for remote reading

Abstract

An adapter module mounts on a utility meter having one or more meter dials. The adapter module has a cover and a mating bracket. The cover includes a plurality of bosses extending from a front side of the cover to a rear side of the cover. The bosses are spaced a predetermined distance from a cover perimeter to provide space for ribs inside the adapter to provide extra support. The cover also has a tamper-proof magnet housing extending from the rear side of said cover and a front battery chamber portion to receive a battery. The mating bracket has a rear battery chamber which, in combination with the front battery chamber, houses one or more batteries. The bracket also has a printed circuit board (PCB) chamber which is adapted to receive a PCB with electronics on-board. The bracket also has a recess which receives a dial dog. The dial dog has a gear for driving original dials of the meter. The dial dog is driven by a meter dog, which in turn is connected to a gear on the original meter. The dial dog has a magnet mounted therein to convert the gear rotations into magnetic pulses detectable by the electronics on the PCB. The magnetic pulse information is captured, digitized and transmitted to a remote location for processing.

Claims

1. An adapter coupleable to a utility meter having a meter gear and a dial, said adapter comprising:

a cover having a plurality of bosses extending from a front side of said cover to a rear side of said cover, each boss spaced a predetermined distance from a perimeter of said cover; and

a battery chamber formed by a bracket and the cover, said battery chamber adapted to receive a battery;

a passageway connected to said battery chamber, said passageway adapted to be sealed to weatherproof said battery;

a recess formed by said bracket;

a meter dog mounted in said bracket coupleable to said meter gear; and

a dial dog mounted in said recess and rotationally coupleable to said meter dog, said dial dog having a magnet mounted thereon to convert rotations associated with the meter gear into magnetic pulses.

2. The adapter of claim 1, wherein the dial dog drives the dial.

3. The adapter of claim 1, wherein the dial dog has tangs adapted to engage said magnet.

4. The adapter of claim 1, wherein said cover has a ledge for receiving a gasket.

5. The adapter of claim 1, further comprising a tamper-proof magnet housing formed on the inside of said cover.

6. The adapter of claim 1, further comprising a printed circuit board for converting the magnetic pulses into computer readable data.

7. The adapter of claim 1, wherein the dial dog has an interlocking boss and the meter dog has an arm for engaging the interlocking boss of the dial dog.

8. The adapter of claim 7, wherein the arm has a base and a projection mounted thereon, the projection having a tip for engaging the interlocking boss of the dial dog.

9. The adapter of claim 8, wherein said tip has snappable wings for securing the meter dog to the dial dog.

10. The adapter of claim 1, further comprising a battery door coupleable to said passageway.

11. The adapter of claim 10, further comprising an opening in said battery door for injecting a sealant into the passageway.

12. The adapter of claim 10, wherein said battery door has snappable legs for securely attaching said battery door to said passageway.

13. An adapter coupleable to a utility meter, said adapter comprising:

a cover having a plurality of bosses extending from a front side of said cover to a rear side of said cover, each boss spaced a predetermined distance from a perimeter of said cover; and

a battery chamber formed by a bracket and the cover, said battery chamber adapted to receive a battery;

a recess formed by said bracket; and

a dial dog mounted in said recess and rotationally coupleable to a meter dial, said dial dog having a breakable arm which is adapted to break and disengage said dial dog from the meter dials if the meter dials on the utility meter seize.

14. A method for retrofitting a utility meter having a dial interface with an adapter module having a battery chamber;

a cover having a plurality of bosses extending from a front side of said cover to a rear side of said cover, each boss spaced a predetermined distance from a perimeter of said cover;

a recess formed by said bracket;

a meter dog mounted in said bracket coupleable to a meter gear; and

a dial dog mounted in said recess and rotationally coupleable to said meter dog, said dial dog having a magnet mounted thereon to convert rotations associated with the meter gear into magnetic pulses, comprising;

coupling said adapter module to said dial interface;

secuing said adapter module to said utility meter; and

weatherproofing the battery chamber of said adapter module.

15. The method of claim 14, wherein said support structure is a plurality of bosses and further comprising spacing the plurality of bosses within said predetermined distance for attaching the adapter module to the meter.

16. The method of claim 14, further comprising mounting a tamper detection circuit in said adapter module.

17. The method of claim 16, wherein the tamper-detection circuit placing step comprises mounting a magnet in the adapter module.

18. The method of claim 14, further comprising placing a bracket between the utility meter and a cover, the bracket and the cover forming a battery chamber.

19. The method of claim 18, further comprising providing a sealable passageway connected to the battery chamber.

20. The method of claim 14, wherein said bracket has a recess, further comprising mounting a dial dog in said recess.

21. The method of claim 20, further comprising inserting the tip of a meter dog into an interlocking boss of the dial dog.

22. The method of claim 14, further comprising detecting rotations of the dial interface.

23. The method of claim 22, further comprising transmitting the detected rotations to a remote location.

24. A method for retrofitting a utility meter having a dial interface and a dial with an adapter module having a battery chamber, comprising:

moving the dial from the utility meter to the front of the adapter module;

coupling said adapter module to said dial interface using a dial dog, the dial dog having a breakable arm which is adapted to disengage the dial dog from the dials when the dials on the adapter module seize;

securing said adapter module to said utility meter using a plurality of support structures spaced a predetermined distance from a perimeter of said adapter; and

weatherproofing the battery chamber in said adapter module using a sealable passageway.