Counter module adaptor assembly for rotary gas meters

An apparatus for use with a backup counter module in one of at least two configurations, the apparatus comprising:

• a housing having a first end and a second end,
• the first end for coupling the housing to a gas meter body,
• the second end for coupling an electronic counter module to the housing;
• and
• the second end having an inner surface and an outer surface,
• the inner surface having at least two sets of backup counter module engagement features for securing an output end of the backup counter module in one of at least two backup counter module positions;
• wherein, in a first configuration:
• the housing is securable to a first gas meter body with the backup counter module positioned within the housing with an input end of the backup counter module coupled to a counter drive shaft of the first gas meter body and an output end of the backup counter module secured in one of the at least two backup counter module positions, and
• wherein, in a second configuration:
• the housing is securable to a second gas meter body with the backup counter module positioned within the housing with the input end of the backup counter module coupled to a counter drive shaft of the second gas meter body and the output end of the backup counter module secured in another of the at least two backup counter module positions.