Other

Flowserve Management Company

John L Brown

Sean A Cain

An electrical submersible pump (ESP) isolates its motor lubricant from pumped product without requiring a bellows, diaphragm, bladder, or external lubricant pressurizing system. A pair of nested isolation chambers below the motor housing are filled with a barrier fluid that is non-reactive, non-miscible, and higher in density than the pumped product and the motor lubricant. As the motor lubricant expands and contracts after pump start-up and shut-down, motor lubricant and barrier fluid are exchanged between the motor housing and the isolation chambers via three interconnections, while pumped product is exchanged with the inner barrier chamber, while being isolated from the motor housing. The interconnections extend between the bottom of the motor housing and the bottom of the outer barrier chamber, between the top of the outer barrier chamber and the bottom of the inner barrier chamber, and between the top of the inner barrier chamber and the pumped product.

Submersible pump with barrier fluid isolation of motor lubricating liquid from pumped product

A hand-held offensive lineman training pad formed of a resilient inner pad and a close fitting outer cover has a generally T-shaped tapered configuration with flat front and back sides and a generally rectangular cross section. The generally T-shaped pad has a relatively wide upper portion and an elongate lower portion having opposed lateral sides that taper downward and angularly inward and terminate at a flat bottom end to simulate the framework of the upper torso of a defensive lineman with the wider upper portion simulating the shoulder pads of the defensive lineman. A pair of shallow generally rectangular recessed pockets on each of the elongate lateral sides of the pad receive the fingertips of the offensive lineman and approximate the proper hand placement for an offensive lineman to engage a defensive lineman. The pad is effective in training an offensive lineman in proper hand placement and executing various blocking maneuvers.

Hand-held offensive lineman training pad

Disclosed herein is a snubbing device for use with traditional braided cordage. Traditional braided cordage exhibits a certain elasticity when tensioned by having the longitudinal axis of the braided cordage pulled in such a manner that the braid and resulting diameter constricts itself. In a double braided environment, an outer braid would constrict upon an inner braid, which would in turn constrict upon itself. A resilient elastic insert is provided within the inner core thereof, thereby causing the inner braid to constrict thereon.

Growing community of inventors

Santa Fe, TX, United States of America

John L Brown