Abstract: An externally serrated rotary shredder and submersible shredder pump having an externally serrated rotary shredder. These are for reducing the size of solids within a liquid which is to be pumped by shredding. An improvement over prior designs employs a cutting assembly and a shredder pump. The cutting assembly has a centrally positioned stationary dual sided plate cutter which engages first and second rotary cutters on alternate sides of a centrally positioned dual sided plate cutter. The first rotary cutter has cutting lobes having upper and lower cutting surfaces. The waste water contents have a finer grind which improves removal and reduces the likelihood of shredder pump clogging. The cutter assembly is configured for mounting to an intake opening of a stationary volute associated with a shredder pump. Many more cutting surfaces are provided which more quickly shred the solid materials within the liquid to be expelled.

Abstract: A compressively resilient, dual layered bushing useful for aligning shafts and couplings and adjusting shaft misalignment. It has a cylindrical sleeve with an outer wall, and a hollow core defining an inner wall extending from a top to a bottom of the cylindrical sleeve. The cylindrical sleeve comprises a first compressively resilient material and has separated, parallel grooves through the outer wall around its circumference. A cylindrical outer tube is attached around the outer wall of the cylindrical sleeve from the top to the bottom. The outer tube has a smooth outer wall and an inner wall having separated parallel projections extending outwardly around the inner wall of the outer tube. The projections are attached to and mate with the grooves through the outer wall around the cylindrical sleeve. The cylindrical outer tube and the projections comprise a second different compressively resilient material.

Abstract: A cutter assembly and high volume submersible shredder pump. These are for reducing the size of solids within a liquid which is to be pumped by chopping, grinding, shredding or cutting. An improvement over prior designs employs a cutting assembly and an associated shredder pump, wherein the cutting assembly has a centrally positioned dual sided plate cutter which engages first and second rotary cutters on alternate sides of a centrally positioned dual sided plate cutter. In operation the waste water contents have a much finer grind which improves efficient removal and reduces the likelihood of shredder pump clogging. The cutter assembly is adapted for mounting to an intake opening of a stationary volute, associated with a shredder pump. As a result, many more cutting surfaces are provided which more effectively and quickly shred the solid materials within the liquid to be expelled.

Abstract: A compressively resilient bushing useful for aligning shafts and couplings and adjusting shaft misalignment. They find use as component parts of shaft, and other coupling devices. It comprises a cylindrical sleeve having an outer wall, and a hollow core through. The cylindrical sleeve defines an inner wall of the cylindrical sleeve. The hollow core extends longitudinally from a top to a bottom of the cylindrical sleeve. The cylindrical sleeve comprises a compressively resilient material. Grooves through the outer wall are around a circumference of the cylindrical sleeve. T-shaped grooves through the outer wall extend longitudinally from the top to the bottom of the cylindrical sleeve. Each T-shape groove has a ledge partially overlapping from the top to the bottom of the cylindrical sleeve at opposite sides of. Said T-shape grooves and the ledges extend from the top to the bottom of the cylindrical sleeve.

Abstract: A coupling for attaching a pair of longitudinally aligned rotatable shafts. It has a pair of circular hubs having a bore through a central axis. A shaft is fixed within each bore. A circular power ring is positioned between the hubs. Either the hubs or the power ring have circular apertures through and spaced around each hub and a hollow bushing positioned in each circular aperture. The other of the hubs or the power ring has mating coupling pins extending outwardly mounted within a corresponding one of the hollow bushings. Preferably an end of the coupling pins mating with the bushings have a generally truncated spherical, bulbous configuration with an outside diameter about 5% to about 25% greater than an outside diameter of its opposite end. Preferably elastically deformable, solid cylindrical spacers are attached to, and projecting between each circular hub and the circular power ring.

Abstract: A cutter assembly and high volume submersible shredder pump. These are for reducing the size of solids within a liquid which is to be pumped by chopping, grinding, shredding or cutting. An improvement over prior designs employs a cutting assembly having a rotary cutter and a cup-shaped, concave, plate cutter having a circular horizontal cross-section. The plate cutter is adapted for mounting to an intake opening of a stationary volute, associated with a shredder pump. The cutting assembly has cutting lobes having a grooved surface which mate with corresponding grooves of the shaped, concave, plate cutter. As a result, many more cutting surfaces are provided which more effectively and quickly shred the solid materials within the liquid to be expelled.

Abstract: A mechanical seal cooler having a solid body; a continuous first conduit within the body defining first conduit side walls; and a continuous second conduit disposed within the body defining second conduit side walls. The first conduit is spaced from and juxtaposed with the second conduit. A first fluid inlet port extends through the body and cooperates with an input end of the first conduit. A first fluid outlet port extends through the body, cooperating with an outlet end of the first conduit. A second fluid inlet port extends through the body, cooperating with an input end of the second conduit. A second fluid outlet port extends through the body cooperating with an outlet end of the second conduit. Concavities are through the first conduit and second side walls. A coupling attaches the solid body to a heat source device.

Abstract: A cutter assembly and high volume submersible shredder pump. These are for reducing the size of solids within a liquid which is to be pumped by chopping, grinding, shredding or cutting. An improvement over prior designs employs cutting lobes having a grooved surface which mate with corresponding grooves of a circular plate cutter. As a result, many more cutting surfaces are provided which more effectively and quickly shred the solid materials within the liquid to be expelled.

Abstract: A cutter assembly and high volume submersible shredder pump. These are for reducing the size of solids within a liquid which is to be pumped by chopping, grinding, shredding or cutting. An improvement over prior designs employs cutting lobes having a grooved surface which mate with corresponding grooves of a circular plate cutter. As a result, many more cutting surfaces are provided which more effectively and quickly shred the solid materials within the liquid to be expelled.

Abstract: A coupling for joining rotatable shafts including a pair of mating hubs having projecting pins, which hubs are held together via a free-floating wrap around restraint. The coupling has first and second circular hubs, wherein each circular hub has and a tool for fixing a shaft within each bore. Several coupling pins extend outwardly from each hub such that the coupling pins of the hubs are facing and longitudinally aligned with each other to define mating pairs of coupling pins. The coupling has a flexible annular restraint having split ends and semi-cylindrical concavities through the restraint. The restraint is wrapped around the mating pairs of coupling pins such that the split ends align and one mating pair of coupling pins are positioned within each of the semi-cylindrical concavities. A cincture is then fastened around the outer surface of the restraint.

Abstract: The invention relates to a coupling for joining rotatable shafts including a pair of mating hubs having projecting pins, which hubs are held together via a free-floating wrap around restraint. The coupling has first and second circular hubs, wherein each circular hub has and a tool for fixing a shaft within each bore. Several coupling pins extend outwardly from each hub such that the coupling pins of the hubs are facing and longitudinally aligned with each other to define mating pairs of coupling pins. The coupling has a flexible annular restraint having split ends and semi-cylindrical concavities through the restraint. The restraint is wrapped around the mating pairs of coupling pins such that the split ends align and one mating pair of coupling pins are positioned within each of the semi-cylindrical concavities. A cincture is then fastened around the outer surface of the restraint.

Abstract: The invention relates to a coupling for attaching a pair of longitudinally aligned, rotatable shafts. In one embodiment, the coupling has a pair of circular hubs having a bore through a central axis thereof. Suitable means fix a shaft within each bore. Several circular apertures are spaced around and through each hub and a hollow bushing is positioned in each circular aperture. A circular power ring is positioned between the hubs, the ring has several rounded coupling pins extending outwardly from its front and rear surfaces. Each pin is mounted within a corresponding one of the hollow bushings. In another embodiment, the coupling has the pins extend inwardly from each hub and the corresponding apertures are through the power ring. The hub pins are mounted within a corresponding one of the hollow bushings through the power rings. The invention also relates to an assembly comprising a coupling as described above, and a shaft fixed within the bore of each hub of the coupling.

Abstract: An improved mechanical seal of the type useful to form a seal between a stationary housing and a rotatable shaft having a shaft axis extending through an opening in the housing. The mechanical seal has stationary components and rotatable components. The stationary components comprise a stationary seal element having a stationary seal surface and the rotatable components comprise a rotatable seal element having a rotatable seal surface. The stationary and rotatable seal surfaces have substantially equal and oblique, preferably, acute, angles to the shaft axis. The seal surfaces oppose each other and are forced together to form a seal. The seal can be secured in place by improved connector clips.

Abstract: An improved mechanical seal of the type useful to form a seal between a stationary housing and a rotatable shaft having a shaft axis extending through an opening in the housing. The mechanical seal has stationary components and rotatable components. The stationary components comprise a stationary seal element having a stationary seal surface and the rotatable components comprise a rotatable seal element having a rotatable seal surface. The stationary and rotatable seal surfaces have substantially equal and oblique, preferably, acute, angles to the shaft axis. The seal surfaces oppose each other and are forced together to form a seal. The seal can be secured in place by improved connector clips.

Abstract: An improved mechanical seal of the type useful to form a seal between a stationary housing and a rotatable shaft. The seal comprises a rotatable seal element and a stationary seal element. There is an elastic element which forces the rotatable and stationary seal elements to sealingly engage. The mechanical seal can comprise removable clips to connect the seal to the housing.

Abstract: An improved "infield" cylindrical sealing gland which is constructed to be secured in mating relation providing a positive seal to the pump housing to supplement a sealing assembly for pumps and other machinery, including rotating shafts. The contacting surface of the gland in face-to-face relation to the pump housing is provided with one or more annular grooves in which are seated O-rings which bear against the surface of the pump housing. Structure is provided to interpose a viscous liquid into the grooves to produce hydraulic pressure against the internal surfaces of the O-rings compressing them against the surface of the pump housing in order to compensate for mismatches in the surfaces caused by corrosion, or other discrepancies.

Abstract: The present invention is an apparatus and related method for sealing leaks at the surface of an article, comprising a plurality of interlocking links constructed to form a circumferential collar on the circumferential surface surrounding a leak. The links are constructed and arranged to exert radial pressure on the circumferential surface of the article. A sealing means is disposed between the circumferential surface of the article and the links.

Abstract: Self-aligning stationary composite adapted for use in a sealing assembly for pumps, and other machinery including rotary shafts, which includes a pair of rings, non-rotatably disposed in coaxial, colinear relation in an annular recess of a cylindrical gland, mechanically secured to the pump housing. The first ring of the composite, which is seated against the inner wall of the gland recess, has a U-shaped annular cavity filled with viscous liquid, which telescopically accommodates the inwardly-directed annular projection of the second ring of the composite. The annular outer face of the second ring provides a smooth surface against which the rotor attached to the shaft bears in sealing relation during rotation. The viscous liquid interposed into the U-shaped cavity, which may be silicone jelly, permits relative adjustment in an axial direction between the rings during rotation of the shaft, to compensate for misalignment between the rotating and the non-rotating parts.