Abstract: A universal relief valve assembly (30) installed in an electric fuel pump (10) for returning fuel from an outlet portion (16) of the fuel pump back to the inlet side of the pump. A cartridge (32) is mounted in the pump and has an opening (34) extending therethrough for fuel to flow from the outlet portion of the pump back to the inlet portion of the pump. A relief valve (42) installed in the cartridge is movable from a closed position to an open position by the pressure to which the relief valve is subjected. A valve spring (52) installed in the cartridge biases the relief valve closed. The cartridge is sized to fit into a variety of fuel pumps having a range of outlet pressures, so to reduce the number of relief valve assemblies required to manufacture a line of fuel pumps.

Abstract: A well bore pressure containment device is provided. Operating as a single stripping and containment device compatible with a wide range of tool string and tubing sizes, the containment device may be integrated with rotating pressure control systems, and be used during completion and work over operations. The containment device has a spool, and a flexible bladder extending about the interior of the spool. The bladder may be controllably deformed to seal against a tool string passing through the device using an inwardly directed pressure, which preferably is exerted by a fluid in the interstitial space between the spool and the bladder.

Abstract: A new ultra light weight, spring action, stand system for supporting a golf bag is provided. According to one aspect of the present invention, the stand system includes a top bracket, a pair of legs, a guide, a wire form, and a footplate. The top bracket is configured for coupling to a top portion of a golf bag. The pair of legs may be pivotably coupled to the top bracket. The guide is for coupling to a bottom portion of the golf bag to restrain lateral movement of the wire form, for example. The wire form is slidably coupled through the guide and engages the legs. The actuation of the wire form moves the legs from a retracted position to an extended position. Finally, the footplate is pivotably mounted to the wire form and is positioned to have a contact point with the ground for actuating the wire form that is behind the plane of the legs.

Abstract: An integrated fuel system unit (10) comprises a two-stage fuel pump (16) and fuel filter (34). The fuel filter is interposed between the first and second pump stages (S1,S2) so fuel flowing between the stages is drawn through the filter. A spiral-wound fuel line (44) delivers fuel from a fuel inlet (18) to the first pump stage. Water is circulated about the fuel line to cool the fuel flowing therethrough. A fuel pressure regulator (60) in an outlet (20) of the unit diverts fuel from the engine back to a cavity (36) in which the filter is housed if an overpressure condition occurs. This fuel is then mixed with the fuel flowing between pump stages. Water also collects in the cavity and a solenoid (74) controlled water passage (72) allows this water to be entrained with fuel flowing to the second pump stage for the water and fuel to be mixed together and pumped to an internal combustion engine to be combusted therein.

Abstract: A two-stage marine fuel pump (10). A first pump stage (S1) has a fuel inlet (24) and a fuel outlet (26). A second pump stage (S2) has a separate fuel inlet (28) and fuel outlet (30). Each pump stage is stand alone such that while the outlet of the first pump stage can be routed to the inlet of the second pump stage, the pump can be otherwise configured. In these other configurations, there is one path for routing fuel to the fuel inlet of the first pump stage and from the outlet thereof, and a separate path for routing fuel to the inlet of the second pump stage and from the outlet thereof. In these alternate configurations fuel pumped from the first stage of the pump is delivered other than to the fuel inlet of the second pump stage, and fuel supplied to the inlet of the second pump stage is delivered other than from the fuel outlet of the first pump stage.

Abstract: A fuel delivery system (10) used on marine vessels (B) has a fuel injected, internal combustion engine (E) for propulsion. A fuel tank (T) stores fuel (F) supplied to run the engine through a supply line (L) extending between the fuel tank and the engine. The tank has a relatively small (1.6 in. diameter) opening (O), and a fuel pump (12) is sized to fit within the fuel tank through this opening. The fuel pump pumps fuel, under pressure, from the fuel tank to the engine. A fuel filter (20) is also sized to fit within the tank and is connected to an inlet (14) of the fuel pump. Fuel is drawn into the fuel pump through the fuel filter. A pressure regulator (30) regulates the pressure of fuel pumped to the engine. The pressure regulator is mounted externally of the tank and the fuel pump is tethered to the pressure regulator for the fuel pump and fuel filter to be installed in the fuel tank without use of external supporting structure.

Abstract: A new ultra light weight, spring action, stand system for supporting a golf bag is provided. According to one aspect of the present invention, the stand system includes a top bracket, a pair of legs, a guide, a wire form, and a footplate. The top bracket is configured for coupling to a top portion of a golf bag. The pair of legs may be pivotably coupled to the top bracket. The guide is for coupling to a bottom portion of the golf bag to restrain lateral movement of the wire form, for example. The wire form is slidably coupled through the guide and engages the legs. The actuation of the wire form moves the legs from a retracted position to an extended position. Finally, the footplate is pivotably mounted to the wire form and is positioned to have a contact point with the ground for actuating the wire form that is behind the plane of the legs.

Abstract: In a calculating device, a method to allow a user to enter fractions in the form "b/c", where "b" and "c" are integers; "b/c" is a fraction; and the denominator "c" is within a prespecified range. The method to enter real number fractions includes activating one or more digit keys and the successive pressing of a primary function key to distinguish the previously entered numerator value from a subsequently entered denominator value.

Abstract: A calculator receives fraction values directly, without requiring the user to perform mathematic operations, by use of a primary key to separate digits of the whole number, numerator and denominator. The calculator also displays fractions with a user specified denominator allowing convenient application to user needs. By reducing mental effort in entering numeric values and interpreting results of calculations, the calculator is better adapted to suit a particular user's needs.

Abstract: A system for transmitting an analog signal comprises converting the input analog signal to a binary signal by detecting the change in sign of the slope of the analog signal and generating a binary signal whose transition occurs at each change of sign of slope of the analog signal. In a preferred embodiment of the invention, the binary signal is transmitted as an amplitude modulation on a carrier frequency over a fiberoptic line to a receiver. The receiver converts the detected binary signal into an analog signal by binary signal gating of a clock signal into an up/down counter whose digital output is converted to an analog signal which is filtered to remove the clock frequency and harmonics of the highest desired input signal frequency thereby providing a replica of the input analog signal. Multiple input signals may be multiplexed and their digital outputs processed in a computer to extract information as in seismographic exploration.