| 摘要 |
<p>A three in one cryogenic wrench (10) for engaging the fitting on the couplings of cryogenic trailers is disclosed. The three in one cryogenic wrench includes a handle (12) and a head (14) integrally formed from the handle. The head has an open end (20) which defines a pair of jaws (16). Three recesses (18) are disposed within the head, one in the interior surface of each jaw and one directly opposite of the open end. The three in one cryogenic wrench is carefully designed such that it is capable of engaging the three types of couplings most commonly found on cryogenic trailers. The three in one cryogenic wrench may also be constructed from non-striking materials in order to prevent accidental sparking.</p> |
