A relief valve assembly including a valve member, having inlet and outlet bores, for sliding movement within a valve body bore portion, having a cylindrical sleeve portion, journalled via a cylindrical sleeve bearing for substantially the entire axial extent thereof, with a valve member head portion having a plurality of equally spaced apertures, connecting the inlet bore and a sleeve portion central cavity with the outlet bore. An annular resilient seal, having a flat-faced sealing surface is r...

A rotary fluid pressure device having a housing member, a manifold assembly, an internally generated rotor type gerotor set, an end plate, and a rotatably journaled torque transfer shaft interconnected with the gerotor set and extending within the housing member and manifold assembly. The gerotor set having at least an internally toothed stator member and a rotating rotor member disposed within the stator member. The rotor member having a first and second axial end surface and external teeth whi...

A screw connection including a sealing ring, a connecting piece, and a union nut for assembling a tube connector. The sealing ring has a nut side portion with an annular reinforcement on its outer face, a narrow ring portion, a ring surface with transfer elements arranged on its annular face located at the transition between the narrow ring portion and the nut side portion, and at least one cutting edge on its interior surface. The annular face having an inclination between 45.degree. and 90.deg...

A portable, hand held, apparatus for crimping a hose fitting to the end of a hose, including a unitary frame having four sides surrounding an open middle section, wherein one of the sides is a base with a receiving opening extending therethrough for housing crimping componentry and another of the sides is a top portion for attaching a cylinder, piston, and a pusher. The outer surface of each of the remaining two sides has mounting holes for attaching a power unit. The unitary frame includes a ha...

A quick connect/disconnect coupling assembly includes (a) a female coupling member; (b) a male coupling member including an annular rib; (c) an expandable locking ring carried by the female coupling member, where the locking ring has an unexpanded inner diameter that is less than the maxinium diameter of the annular rib, and has an inner diameter slightly larger than the maxinum diameter of the annular rib when expanded; (d) a rotatable dial carried on the male coupling member; and (e) a mechani...

The invention relates to a spin-on filter for filtering a flowing substance, especially to a filter for hydraulic liquid or lubricating oil in combustion motors. The filter comprises a casing, which is openable at one end, a substantially cylindrical replaceable filter means fitted inside the casing, the flow to be filtered having been arranged to pass through the filter means mantle, and a collar for connecting the filter with a device assembly, which includes inlet and outlet ducts for flow to...

A valve for controlling fluid flow is provided. The valve includes an actuating stem for controlling the flow of fluid through the valve, a valve member with a positioning formation and an opening for permitting fluid flow, a valve body portion, and at least one insert or compressor for retaining the valve member within the valve body portion. The valve body portion is comprised of a formable material--such as a metal--that is formed about the valve member in connection with an applied load. The...

A coupling assembly for use in connecting fluid lines having a unitary female body and a male coupling portion. The female body includes at least two passageways having frangible diaphragms. The male coupling portion includes at least two male coupling halves having frangible diaphragms. Cutting devices are positioned in the passageways of the female body. As the male coupling portion is moved toward the female body by a bracket and fastening device, the diaphragms are ruptured to allow fluid fl...

A fluid-pressure actuated piston/cylinder assembly having a sensor capable of reading at least one indicia marking on a piston rod in order to determine the movement and specific location of the piston rod and cylinder relative to each other. The sensor is housed within a sealing gland that is incorporated into the piston/cylinder assembly and is isolated from the internal fluid pressure and external elements. A method for determining the exact location of one of a piston rod and cylinder, relat...

A telescopic cylinder comprised of an outer cylinder, a plurality of decreasing diameter piston/sleeve assemblies concentrically mounted in the outer cylinder for reciprocal axial movement relative thereto, and a plunger assembly concentrically mounted within the innermost one of the piston/sleeve assemblies for reciprocal axial movement relative thereto. The piston/sleeve and plunger assemblies having a piston with at least one lateral hole and at least one lateral passage, respectively, extend...