their open position, so that the cam levers130must be held open, and will return to their closed position when released. FIG. 3 further includes a set screw300which can be tightened so as to inhibit rotation of
1. An improved well packer for removeable installation in a well casing with a drill string comprising: a hollow packer housing; upper and lower teeth pivotally attached to the housing for releasably engaging the packer housing with the well casing; a mandrel attached to the drill string ...
One of several extremely clever programmers there — sadly, I believe, deceased some years ago — had been waiting for the thing to go into production for a lot more than a year (he had even pre-paid). They only had the lab prototypes to work with. His patience exhausted, he walked i...
A device for connecting and supporting electrical fixtures includes a male electrical plug, a mating female electrical socket and a releasable latch assembly for both holding the plug in the socket and mechanically mounting the fixture on a supporting surface or an electrical box. The plug is provi...