Pipe joints or couplings – With means blocking release of holding means – Auxiliary latch
Patent
1990-12-18
1992-10-06
Kundrat, Andrew V.
Pipe joints or couplings
With means blocking release of holding means
Auxiliary latch
285 23, 285 34, 285353, 285386, 285315, 285348, 285110, F16L 3700
Patent
active
051525542
ABSTRACT:
A coupling apparatus is provided for quick coupling of surface pumping equipment to a cylindrical member. The cylindrical member is engaged by dogs which are urged into locking position about the cylindrical member.
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LaFleur Karl K.
Wade Donald R.
Kundrat Andrew V.
LaFleur Petroleum Services, Inc.
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