Field-replaceable battery pack and method for underground instal

Details Field-replaceable battery pack and method for underground instal Field-replaceable battery pack and method for underground instal

1994-10-11

1995-12-19

Kalafut, Stephen

Chemistry: electrical current producing apparatus, product, and

Cell support for removable cell

Having switch or interlock means

429 98, 429 99, 429100, H01M 204, H01M 206

Patent

active

054767318

ABSTRACT:
At least one new battery (60, 61) is added to a transponder unit (10) used in a subsurface pit enclosure (11), by removing a transponder housing (25, 26) from the pit enclosure (11), removing a breakout portion (33) of a top wall (32) of the transponder housing (25, 26) to provide an access opening (52) to access a pair of transponder terminals (50, 51) in the transponder housing (25, 26), mounting a battery (60, 61) sealed in a battery casing (62) to a side of the transponder housing (25, 26), with a pair of battery pack leads (47, 48) extending from the battery casing (62), connecting the battery pack leads (47, 48) to the transponder terminals (50, 51) in the transponder housing (25, 26), and providing a sealed battery pack cover (41) over both a top opening (65) in the battery casing (62) and the access opening (32) in the transponder housing ( 25, 26).

REFERENCES:
patent: 4346151 (1982-08-01), Uba et al.
patent: 4933988 (1990-06-01), Thibault
patent: 5023824 (1991-06-01), Chadima, Jr. et al.
patent: 5175708 (1992-12-01), Dumestre, III
patent: 5224474 (1993-07-01), Bloomfield

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