Abstract: A mechanical seal assembly having multiple compression spring assemblies that are used to bias a stationary seal into sealing engagement with a rotating seal, the springs in the spring assemblies being supported on their internal diameter and having their outside diameter visible for their entire length, each spring assembly further including a releasable, expendable clip that serves to preload the two seal faces against one another, limits relative axial movement between the stationary and rotating seal assemblies, and coaxially aligns the stationary and rotating seal assemblies.

Abstract: An outboard seal between a rack bar of a rack and pinion steering gear and a fluid motor cylinder tube around the rack bar. The outboard seal includes an annular bulkhead in an outboard end of the cylinder tube around the rack bar, a metal retaining ring preventing dislodgment of the bulkhead from the cylinder tube by fluid pressure in the cylinder tube, and a seal ring adjacent an end wall of the bulkhead having an outer surface resiliently pressing against the cylinder tube and an inner lip biased against the rack bar by garter spring. A coupling between the seal ring and the bulkhead consists of an annular groove in a cylindrical shoulder on the bulkhead and a flexible lip on the seal ring stretched over the cylindrical shoulder and seated loosely in the annular groove.

Abstract: A packing element for an annular blowout preventer includes an annular elastomeric body disposed about a longitudinal axis that is adapted to be compressively displaced inwardly towards the axis. A plurality of the metallic inserts are embedded in the body in generally circular fashion spaced apart in respective radial planes extending from the axis for reinforcing the body. Each of the inserts include upper and lower flanges, and a web element extending between the flanges. The web element includes leading and trailing edges, each having outer arcuate surfaces that are substantially semicircular in cross-section for distributing the loads applied to a bond line between the insert and the elastomeric body during the operation of the packing element. A central rib extends between the leading and trailing edges.

Abstract: A pipe coupling for sealing a leak location in a pipe or pipeline by compressing annular gasket members against the pipe or pipeline around the leak location comprises a tubular middle ring, a pair of annular followers, and a pair of annular elastomeric gasket positioners bonded to and protruding from respective followers and positioned so that when the coupling is placed in sealing position, the gasket positioners engage the annular gasket members and force the gasket members into sealing position between the tubular middle ring and the pipe or pipeline. Suitable annular gasket members include rubber O-rings. The gasket positioners may include a retaining ring to prevent outward extrusion of the gasket positioner from between the coupling and the pipe or pipeline.

Abstract: A tubular joint has a pair of tubular members (10, 12) with end hubs (14, 16) in opposed relation and secured by a clamp (22). A primary seal ring (40) has external tapered sealing surfaces (42, 44) engaging internal tapered sealing surfaces (28, 30) on the hubs (14, 16) to provide a primary seal. Secondary sealing surfaces (32, 36) on the hubs (14, 16) are engaged by O-rings (62, 64) as shown in FIG. 4 to seal against external fluid flow to the seal ring (40). O-rings (62, 64) permit internal fluid flow outwardly from the seal ring (40) as shown in FIG. 3.

Abstract: A hub assembly with improved sealing and anti-clogging properties comprising a housing body with a central, longitudinal aligned bore. In the embodiment described herein, a rotating shaft unit on a consistency transmitter is disposed inside the central bore. A flow cavity is formed on the distal end of the housing body which directly communicates with the central passageway of a pipeline containing flowing fluid material. The flow cavity is sufficient in size so that fluid material inside the pipeline may freely flow therein during use. Located around the distal opening of the housing body is an inner bushing made of graphite material. Located immediately adjacent to the inner bushing is a compressible bellows seal which imparts a force against the adjacent, outer surface of the inner bushing. The bellows seal which rotates with the rotating drive unit, has a smooth silicone-carbide end surface which is pressed tightly against the end surface on the stationary inner bushing thereby forming a tight seal.

Abstract: The invention relates to a connector for connecting a fuel filler pipe (3) to a fuel tank (1), particularly in a motor vehicle. The connector has a tubular sealing housing (2) attached to the fuel tank (1) and a retention collar (4) retained by a pair of flanges (7,8) on the pipe (3) and which may be press-fitted to the housing (2). The collar (4) has a ring (5) from which four lugs (6) extend axially towards the housing (2). Each lug (6) has: a radially outward projecting detent (13) which engages with a lip (39) within the housing (2); and a radially inward projecting detent (14) which retains the filler pipe (3) in one axial direction, the filler pipe (3) being retained in the other axial direction by the ring (5). The housing (2) has a grommet (60) seal with the filler pipe (3) and also a number of crenellations (9,10,11) and detent guide channels (38) which receive and guide outwardly projecting detents (13) to the lips (39).

Abstract: A pair of quick disconnect female fittings each have a first end adapted to be connected to a first pipe, and a second end adapted to engage a quick disconnect male fitting attached to a second pipe. Each of the quick disconnect female fittings includes a sleeve adapted to cause the quick disconnect male fitting to disconnect from the quick disconnect female fitting when the sleeve is urged toward the first end. A pair of elongated members are disposed generally parallel to the quick disconnect female fittings. A plate is configured to slide along the elongated members. The plate is configured such that when urged toward the first ends of the quick disconnect female fittings along the elongated members, the plate will urge the sleeves toward the first ends. A first spring is disposed on each of the elongated members and is configured to urge the plate toward the first ends of the quick disconnect female fittings. Each of the elongated members includes a recess therein.

Abstract: A quick disconnect member (36, 136) is retained on a tube (12) for sliding movement therealong to react with the projection (18) and includes a pair of arms (42) each with a V-shaped abutment (38) biased radially outwardly into a locked position in overlapping engagement with a shoulder (28) to prevent removal of the tube (12) from the socket. A resilient safety plug (44) is disposed between the tube (12) and the abutment (38) for preventing abutment (38) from disengaging from the shoulder (28). The safety plug (44) retains hooks (43) radially outwardly against the lip (32). The safety plug (44) presents an annular ridge (46) extending into the V-shaped abutment (38) to retain the safety plug (44) in the socket member (14) and a radially extending flange (48) abutting the distal ends of the arms (42).