Abstract: Improvements to slip rings (200) and methods for the operation thereof include an improved slip ring assembly (200) that has a stationary element (202), a rotating element (210) rotatable with respect to the stationary (202) element, a bearing assembly coupled between the stationary element (202) and the rotating element (210), and one or more contact brushes (213) on one of the stationary element (202) or the rotating element (210). In some embodiments, the bearing assembly includes a primary bearing, a secondary bearing, a shear pin coupling the secondary bearing to the primary bearing, and an electrical monitoring circuit (206) in communication with the shear pin. In some embodiments, the one or more contact brushes (213) includes one or more metal fiber brushes constructed of a plurality of metal fibers that are configured to transmit one or more of electrical power or data between the stationary element (202) and the rotating element (210).

Abstract: A shrimp deveining machine for cutting and deveining shrimp comprises a motorized driving mechanism inside a housing and a cutting mechanism outside the housing. An upper pair of rotating flexible disks grasps the top side of shrimp bodies and propel them past a cutting disk which slices the sand vein from the back of the shrimp. A lower pair of flexible disks is mounted on an adjusting shaft which may be positioned to adjust the depth of cut on the shrimp. The lower pair of flexible disks grasps the bottom side of the shrimp bodies and dynamically adjusts the position of the shrimp bodies in relation to the cutting disk, thereby achieving a more uniform depth of cut on shrimp of different sizes. The flexible disks also prevent longitudinal rotation of the shrimp bodies, and enable the deveining machine to make a butterfly cut on the shrimp bodies.

Abstract: An apparatus for cutting and deveining shrimp comprises a motor driving means inside a housing and a cutting mechanism outside the housing. A pair of rotating flexible disks grasp shrimp bodies and propel them past a cutting disk which slices the sand vein from the back of the shrimp. An idler roller is mounted on an adjusting shaft which may be positioned to adjust the depth of cut on the shrimp. An improved adjusting mechanism and external crank arm on the adjusting shaft enables adjustment of the idler roller while completely sealing the motor housing from any debris from the cutting operation. Polyurethane flexible disks reduce the growth of surface bacteria.

Abstract: A method and apparatus of stimulating a well having a hydraulic pump seated in an internal shoulder in the production tubing for pumping fluid through a fluid port to the annulus between the tubing and casing. The method includes removing the pump but leaving the production tubing in place. A coil tubing having a fluid injector is lowered into the production tubing and sealingly seated on to the shoulder. The injector is maintained on the seat and the packer is maintained in place by pressuring fluid on to the top of the seated injector and the packer. An inflatable packer may be provided on the coil tubing for anchoring the coil tubing in place.