US4022008A — Centrifugal spinning unit and bearing arrangement…

Claim 1

Independent Claim 238 words

A spinning unit comprising: a. a support formed with an aperture and having a face about said aperture; b. a bearing arrangement including: 1. a housing defining a cavity and formed with an opening communicating with said cavity; 2. an axial thrust bearing and a radial bearing in said cavity having a common axis passing through said opening, 3. a carrier member formed with an axial passage therethrough, 4. resilient mounting means radially interposed between said carrier member and said housing and sealingly securing the carrier member in said opening for limited radial movement, said radial bearing being fixedly mounted on said carrier member, 5. a shaft journaled in said bearings for rotation about said common axis and passing outward of said cavity through said passage, and 6. annular packing means mounted in said passage in fixed spatial relationship to said radial bearing and receiving said shaft; c. means securing said housing in said aperture, said shaft projecting outward of said support from said aperture; d. a spinning pot coaxially mounted on said shaft, said spinning pot having a bottom wall spacedly parallel to said face of said support; and e. electrically operable drive means for rotating said shaft and said pot about said axis, said drive means including a stator winding on said support and a plurality of permanent magnets mounted in said bottom wall, said stator winding and said magnets axially defining an air gap therebetween.

Claim 2

Dependent Claim 238 words

A spinning unit comprising: a. a support formed with an aperture and having a face about said aperture; b. a bearing arrangement including: 1. a housing defining a cavity and formed with an opening communicating with said cavity; 2. an axial thrust bearing and a radial bearing in said cavity having a common axis passing through said opening, 3. a carrier member formed with an axial passage therethrough, 4. resilient mounting means radially interposed between said carrier member and said housing and sealingly securing the carrier member in said opening for limited radial movement, said radial bearing being fixedly mounted on said carrier member, 5. a shaft journaled in said bearings for rotation about said common axis and passing outward of said cavity through said passage, and 6. annular packing means mounted in said passage in fixed spatial relationship to said radial bearing and receiving said shaft; c. means securing said housing in said aperture, said shaft projecting outward of said support from said aperture; d. a spinning pot coaxially mounted on said shaft, said spinning pot having a bottom wall spacedly parallel to said face of said support; and e. electrically operable drive means for rotating said shaft and said pot about said axis, said drive means including a stator winding on said support and a plurality of permanent magnets mounted in said bottom wall, said stator winding and said magnets axially defining an air gap therebetween.

Claim 3

Dependent Claim 47 words

An arrangement as set forth in claim 1, wherein said axial thrust bearing includes a spherical bearing member mounted on said shaft and a socket member mounted on said housing, said bearing member having a grooved face portion conformingly received in a recess of said socket member.

Claim 4

Dependent Claim 36 words

A unit as set forth in claim 2, wherein said housing and said shaft bound a permanently open, annular orifice of said opening offset from said passage in a direction away from said axial thrust bearing.

Claim 5

Dependent Claim 66 words

A unit as set forth in claim 2, wherein said carrier member is formed with a radially sealed chamber axially defined in one direction by said radial bearing and extending to said passage in the other direction , said shaft passing through said chamber and carrying therein a rotor, said rotor being the movable element of screw pump means for pumping fluid toward said radial bearing.

Claim 6

Dependent Claim 21 words

A unit as set forth in claim 4, wherein said housing is formed with a vent opening axially intermediate said bearings.

Claim 7

Dependent Claim 23 words

A unit as set forth in claim 2, further comprising resilient securing means securing said socket member to said housing for limited movement.

Claim 8

Dependent Claim 20 words

A unit as set forth in claim 6, further comprising damping means for damping said movement of said socket member.

Claim 9

Dependent Claim 56 words

A unit as set forth in claim 7, wherein said securing means include a flexible diaphragm attached to said housing and carrying said socket member, and said damping means include a damping member mounted on said diaphragm, means on said housing defining a gap enveloping said damping member, and a viscous fluid substantially filling said gap.

Claim 10

Dependent Claim 35 words

A unit as set forth in claim 2, further comprising screw pump means drivingly connected to said shaft intermediate said bearings for pumping lubricant under pressure to said face portion of said spherical bearing member.

Claim 11

Dependent Claim 107 words

A bearing arrangement comprising: a. a housing defining a cavity and formed with an opening communicating with said cavity; b. an axial thrust bearing and a radial bearing in said cavity having a common axis passing through said opening; c. a carrier member formed with an axial passage therethrough; d. resilient monting means radially interposed between said carrier member and said housing and sealingly securing the carrier member in said opening for limited radial movement, said radial bearing being fixedly mounted on said carrier member; e. a shaft journaled in said bearings for rotation about said common axis and passing outward of said cavity through said passage,

Claim 12

Dependent Claim 107 words

A bearing arrangement comprising: a. a housing defining a cavity and formed with an opening communicating with said cavity; b. an axial thrust bearing and a radial bearing in said cavity having a common axis passing through said opening; c. a carrier member formed with an axial passage therethrough; d. resilient monting means radially interposed between said carrier member and said housing and sealingly securing the carrier member in said opening for limited radial movement, said radial bearing being fixedly mounted on said carrier member; e. a shaft journaled in said bearings for rotation about said common axis and passing outward of said cavity through said passage,

Claim 13

Dependent Claim 75 words

said carrier member being formed with a radially sealed chamber axially defined in one direction by said radial bearing and extending to said passage, 2. said shaft passing through said chamber and carrying thereon a rotor, 3. said rotor being the movable element of screw pump means for pumping fluid toward said radial bearing; and f. annular packing means mounted in said passage in fixed spatial relationship to said radial bearing and receiving said shaft.

Claim 14

Dependent Claim 75 words

said carrier member being formed with a radially sealed chamber axially defined in one direction by said radial bearing and extending to said passage, 2. said shaft passing through said chamber and carrying thereon a rotor, 3. said rotor being the movable element of screw pump means for pumping fluid toward said radial bearing; and f. annular packing means mounted in said passage in fixed spatial relationship to said radial bearing and receiving said shaft.

Claim 15

Dependent Claim 47 words

An arrangement as set forth in claim 10, wherein said axial thrust bearing includes a spherical bearing member mounted on said shaft and a socket member mounted on said housing, said bearing member having a grooved face portion conformingly received in a recess of said socket member.

Claim 16

Dependent Claim 199 words

A bearing arrangement comprising: a. a housing defining a cavity and formed with an opening communicating with said cavity; b. an axial thrust bearing and a radial bearing in said cavity having a common axis passing through said opening, 1. a spherical bearing member mounted on said shaft, 2. a socket member, said bearing member having a grooved face portion conformingly received in a recess of said socket member, 3. a flexible diaphragm attached to said housing and carrying said socket member, 4. a damping member mounted on said diaphragm, 5. means on said housing defining a gap enveloping said damping member, and 6. a viscous fluid substantially filling said gap; c. a carrier member formed with an axial passage therethrough; d. resilient mounting means radially interposed between said carrier member and said housing and sealingly securing the carrier member in said opening for limited radial movement, said radial bearing fixedly mounted on said carrier member; e. a shaft journaled in said bearings for rotation about said common axis and passing outward of said cavity through said passage. and f. annular packing means mounted in said passage in fixed spatial relationship to said radial bearing and receiving said shaft.

Claim 17

Dependent Claim 199 words

A bearing arrangement comprising: a. a housing defining a cavity and formed with an opening communicating with said cavity; b. an axial thrust bearing and a radial bearing in said cavity having a common axis passing through said opening, 1. a spherical bearing member mounted on said shaft, 2. a socket member, said bearing member having a grooved face portion conformingly received in a recess of said socket member, 3. a flexible diaphragm attached to said housing and carrying said socket member, 4. a damping member mounted on said diaphragm, 5. means on said housing defining a gap enveloping said damping member, and 6. a viscous fluid substantially filling said gap; c. a carrier member formed with an axial passage therethrough; d. resilient mounting means radially interposed between said carrier member and said housing and sealingly securing the carrier member in said opening for limited radial movement, said radial bearing fixedly mounted on said carrier member; e. a shaft journaled in said bearings for rotation about said common axis and passing outward of said cavity through said passage. and f. annular packing means mounted in said passage in fixed spatial relationship to said radial bearing and receiving said shaft.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1980-05-09	1980-11-08	1981-05-10	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1984-05-09	1984-11-08	1985-05-10	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1988-05-09	1988-11-08	1989-05-10	$7700.00	Window Closed / Lapsed

Centrifugal spinning unit and bearing arrangement for the same

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