Abstract: A parking garage having a ventilation control system for ambient gases utilizes software to intelligently modulate the rate of speed of a plurality of garage fan motors in the enclosed parking garage structure. Savings are driven by the known relationships between fan power draw and fan speed, whereby fans operate at lower speeds will draw much less power than when operating at high power, taking advantage of the highly non-linear relationship between the two.

Abstract: A multi-stage pump includes a first set of pump stages directing fluid in a first direction from a first end of the multi-stage pump to a diffuser casing disposed at a central portion of the multi-stage pump. A second set of pump stages directs the fluid expelled from the diffuser casing in a second direction, opposite to the first direction, from a second end of the multi-stage pump to the diffuser casing. The diffuser casing receives the fluid from the first set of pump stages and directs the fluid toward the second end of the multi-stage pump and receives the fluid from the second set of pump stages and directs the fluid in a radial direction with respect to a longitudinal axis of the multi-stage pump.

Abstract: A multi-stage pump includes a first set of pump stages directing fluid in a first direction from a first end of the multi-stage pump to a diffuser casing disposed at a central portion of the multi-stage pump. A second set of pump stages directs the fluid expelled from the diffuser casing in a second direction, opposite to the first direction, from a second end of the multi-stage pump to the diffuser casing. The diffuser casing receives the fluid from the first set of pump stages and directs the fluid toward the second end of the multi-stage pump and receives the fluid from the second set of pump stages and directs the fluid in a radial direction with respect to a longitudinal axis of the multi-stage pump.

Abstract: A scope mount for a firearm is disclosed. The scope mount may include a first ring component covering a first portion of an upper half of a scope body, and a second ring component covering a second portion of the upper half of the scope body. The scope mount may also include a third ring component covering a first portion of a lower half of the scope body, and a fourth ring component covering a second portion of the lower half of the scope body. The first and second ring components may removably attach to the third and fourth ring components, respectively, and may form at least two rings around the scope body. The third and fourth ring components may be integral with a scope mount base, and the scope mount base may be configured to removably attach to a Picatinny rail.

Abstract: A cover apparatus for preventing rodent from entering an access opening of the conduit containing electrical supply lines is provided. The cover apparatus may have a first portion and a second portion, each portion forms a complementary base member defined by a peripheral edge and an operable edge. Along each peripheral edge, a flange member may extend therefrom. Each base member is dimensioned and adapted to be joined so that when joined, they collectively form a shape matching the shape of the access opening, so that the flange members snugly circumscribe the outer periphery of the conduit, while the operable edges abut. Each operable edge forms cooperating notches and protrusions for snugly receiving the plurality of cables. Along the flange member, at each peripheral and operable edge intersection, a fastener tab is formed for securely joining the first and second portions in the operable configuration about the access opening.

Abstract: A scope mount for a firearm is disclosed. The scope mount may include a first ring component covering a first portion of an upper half of a scope body, and a second ring component covering a second portion of the upper half of the scope body. The scope mount may also include a third ring component covering a first portion of a lower half of the scope body, and a fourth ring component covering a second portion of the lower half of the scope body. The first and second ring components may removably attach to the third and fourth ring components, respectively, and may form at least two rings around the scope body. The third and fourth ring components may be integral with a scope mount base, and the scope mount base may be configured to removably attach to a Picatinny rail.

Abstract: A scope mount for a firearm is disclosed. The scope mount may include a first ring component covering a first portion of an upper half of a scope body, and a second ring component covering a second portion of the upper half of the scope body. The scope mount may also include a third ring component covering a first portion of a lower half of the scope body, and a fourth ring component covering a second portion of the lower half of the scope body. The first and second ring components may removably attach to the third and fourth ring components, respectively, and may form at least two rings around the scope body. The third and fourth ring components may be integral with a scope mount base, and the scope mount base may be configured to removably attach to a Picatinny rail.

Abstract: Gasket for sealing between flanges in a pressurized fluid system. A central opening is disposed within an inner periphery of the gasket, the inner periphery being curved toward the central opening. Fluid pressure on the inner periphery is reacted by hoop tension in the gasket. The outer periphery of the gasket has concave segments between fastener holes so the area of the gasket is substantially less than the area of the flanges. In this manner, the clamping pressure exerted by the flanges on the gasket is increased.

Abstract: Gasket for sealing between flanges in a pressurized fluid system. A central opening is disposed within an inner periphery of the gasket, the inner periphery being curved toward the central opening. Fluid pressure on the inner periphery is reacted by hoop tension in the gasket. The outer periphery of the gasket has concave segments between fastener holes so the area of the gasket is substantially less than the area of the flanges. In this manner, the clamping pressure exerted by the flanges on the gasket is increased.

Abstract: Gasket for sealing between flanges in a pressurized fluid system. A central opening is disposed within an inner periphery of the gasket, the inner periphery being curved toward the central opening. Fluid pressure on the inner periphery is reacted by hoop tension in the gasket. The outer periphery of the gasket has concave segments between fastener holes so the area of the gasket is substantially less than the area of the flanges. In this manner, the clamping pressure exerted by the flanges on the gasket is increased.

Abstract: Retrofit apparatus is provided for rapidly exhausting air pressure from one or more intercoolers connected in fluid communication between two low pressure heads of an air compressor and a high pressure head of the compressor. The retrofit apparatus comprises an unloader valve, a center header for commonly connecting the intercoolers to the high pressure head, and means for connecting the unloader valve to the center header to effect rapid unloading of the header and the intercoolers connected thereto of pressurized air when the valve receives a compressor unload signal.