Measuring and testing – Volume or rate of flow – Combined
Patent
1989-06-20
1991-02-19
Goldstein, Herbert
Measuring and testing
Volume or rate of flow
Combined
285 32, 285 80, G01F 1518
Patent
active
049932608
ABSTRACT:
A universal expansion connection (32) couples a water meter (10) to an outlet pipe (30). The expansion connection (32) comprises a threaded expansion tube (36), a threaded packer (38) and a lock case (40). The threaded packer (38) is threaded onto the expansion tube (36), which has been installed on an outlet (34) on the meter (10). The lock case (40) is then positioned over and onto the packer (38) such that a driver dog (63) on the packer (38) matches a driver dog recess (64) in the case (40). By holding the expansion tube (36) from turning, the lock case (40) is turned to unscrew the threaded packer (38) from the tube (36). The unscrewing action forces the packer (38) into the internal surface (68) of the lock case (40), as well as forcing the threads (58) into the threads (54) on the tube (36 ). When the lock case (40) has been sufficiently unscrewed, a fluid-tight seal is formed between the meter (10) and the outlet pipe (30). A locking bolt (33) is then inserted through the lock case (40) via a shroud (76). The locking bolt (33) is positioned between a plurality of spaced-apart locking bars (46) on the tube (36) to prevent further rotation thereof.
REFERENCES:
patent: 584232 (1897-06-01), McDowell
patent: 718826 (1903-01-01), Dick et al.
patent: 1495011 (1929-05-01), Ford
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