Patent US3601747A successfully refreshed from Google Patents.
US3601747A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Brush block retractor and alignment device
Assignee: Kearfott Guidance and Navigation Corp
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Filing: 1969-09-18
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Granted: 1971-08-24
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Expires: 1989-09-18
Abstract
Abstract A device for retracting and aligning the brush members of a brush block assembly with respect to a slipring assembly, wherein a cylindrical member provided between the brush lock assembly and the slipring assembly has a plurality of slots for receiving the brush members, and an arcuate groove registering with each slot. The cylindrical member is rotatable with respect to the brush block assembly so that each brush member can be transferred into said groove to uniformly retract the brush members.
Inventors
- 👤 Ralph J Prall
- 👤 Georg Olsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:39
CPC Classifications
H; H01; H01R; H01R39/00
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
112 words
A device for retracting and aligning the brush members of a brush block assembly with respect to a slipring assembly, said device comprising a cylindrical member disposed between said brush block assembly and said slipring assembly, said cylindrical member having a plurality of slots formed therethrough for receiving said brush members, and a groove registering with each slot, said cylindrical member being rotatable with respect to said brush block assembly to a position whereby each brush member is transferred to said groove to uniformly retract said brush members from said slipring assembly, wherein the leading end of each groove is tapered so as to permit a gradual retraction of said brush members.
Claim 2
Independent Claim
112 words
A device for retracting and aligning the brush members of a brush block assembly with respect to a slipring assembly, said device comprising a cylindrical member disposed between said brush block assembly and said slipring assembly, said cylindrical member having a plurality of slots formed therethrough for receiving said brush members, and a groove registering with each slot, said cylindrical member being rotatable with respect to said brush block assembly to a position whereby each brush member is transferred to said groove to uniformly retract said brush members from said slipring assembly, wherein the leading end of each groove is tapered so as to permit a gradual retraction of said brush members.
Claim 3
Independent Claim
128 words
A device for retracting and aligning the brush members of a brush block assembly with respect to a slipring assembly, said device comprising a cylindrical member disposed between said brush block assembly and said slipring assembly, said cylindrical member having a plurality of slots formed therethrough for receiving said brush members and a groove registering with each slot, said cylindrical member being rotatable with respect to said brush block assembly to a position whereby each brush member is transferred into said groove to uniformly retract said brush members from said slipring assembly, wherein there are two rows of brush members mounted with respect to said brush block assembly, and wherein said slots in said cylindrical member are alternately formed in a diametrically opposite position along said cylindrical member.
Claim 4
Independent Claim
128 words
A device for retracting and aligning the brush members of a brush block assembly with respect to a slipring assembly, said device comprising a cylindrical member disposed between said brush block assembly and said slipring assembly, said cylindrical member having a plurality of slots formed therethrough for receiving said brush members and a groove registering with each slot, said cylindrical member being rotatable with respect to said brush block assembly to a position whereby each brush member is transferred into said groove to uniformly retract said brush members from said slipring assembly, wherein there are two rows of brush members mounted with respect to said brush block assembly, and wherein said slots in said cylindrical member are alternately formed in a diametrically opposite position along said cylindrical member.
Claim 5
Independent Claim
114 words
A device for retracting and aligning the brush members of a brush block assembly with respect to a slipring assembly, said device comprising a cylindrical member disposed between said brush block assembly and said slipring assembly, said cylindrical member having a plurality of slots formed therethrough for receiving said brush members, and a groove registering with each slot, said cylindrical member being rotatable with respect to said brush block assembly to a position whereby each brush member is transferred into said groove to uniformly retract said brush members from said slipring assembly, wherein said slots and said grooves are arcuate, and wherein said grooves are formed in the outer surface of said cylindrical member.
Claim 6
Independent Claim
114 words
A device for retracting and aligning the brush members of a brush block assembly with respect to a slipring assembly, said device comprising a cylindrical member disposed between said brush block assembly and said slipring assembly, said cylindrical member having a plurality of slots formed therethrough for receiving said brush members, and a groove registering with each slot, said cylindrical member being rotatable with respect to said brush block assembly to a position whereby each brush member is transferred into said groove to uniformly retract said brush members from said slipring assembly, wherein said slots and said grooves are arcuate, and wherein said grooves are formed in the outer surface of said cylindrical member.
Claim 7
Dependent Claim
149 words
Apparatus for transferring electrical current comprising a brush block assembly; a plurality of brush members mounted with respect to said brush block assembly; a slipring assembly adapted to rotate with respect to said brush block assembly in engagement with said brush members, said brush block assembly and said slipring assembly adapted to be connected within a plurality of electric circuits; and a cylindrical member disposed between said brush block assembly and said slipring assembly, said cylindrical member having a plurality of slots formed therethrough for receiving said brush members, and a groove registering with each slot, said cylindrical member being rotatable wiTh respect to said brush block assembly to a position whereby each member is transferred into said groove to uniformly retract said brush members from said slipring assembly, wherein the leading end of each groove is tapered so as to permit a gradual retraction of said brush members.
Claim 8
Dependent Claim
149 words
Apparatus for transferring electrical current comprising a brush block assembly; a plurality of brush members mounted with respect to said brush block assembly; a slipring assembly adapted to rotate with respect to said brush block assembly in engagement with said brush members, said brush block assembly and said slipring assembly adapted to be connected within a plurality of electric circuits; and a cylindrical member disposed between said brush block assembly and said slipring assembly, said cylindrical member having a plurality of slots formed therethrough for receiving said brush members, and a groove registering with each slot, said cylindrical member being rotatable wiTh respect to said brush block assembly to a position whereby each member is transferred into said groove to uniformly retract said brush members from said slipring assembly, wherein the leading end of each groove is tapered so as to permit a gradual retraction of said brush members.
Claim 9
Dependent Claim
166 words
Apparatus for transferring electrical current comprising a brush block assembly; a plurality of brush members mounted with respect to said brush block assembly; a slipring assembly adapted to rotate with respect to said brush block assembly in engagement with said brush members, said brush block assembly and said slipring assembly adapted to be connected within a plurality of electrical circuits; and a cylindrical member disposed between said brush block assembly and said slipring assembly, said cylindrical member having a plurality of slots formed therethrough for receiving said brush members, and a groove registering with each slot, said cylindrical member being rotatable with respect to said brush block assembly to a position whereby each brush member is transferred into said groove to uniformly retract said brush members from said slipring assembly, wherein there are two rows of brush members mounted with respect to said brush block assembly, and wherein said slots in said cylindrical member are alternately formed in a diametrically opposite position along said cylindrical member.
Claim 10
Dependent Claim
166 words
Apparatus for transferring electrical current comprising a brush block assembly; a plurality of brush members mounted with respect to said brush block assembly; a slipring assembly adapted to rotate with respect to said brush block assembly in engagement with said brush members, said brush block assembly and said slipring assembly adapted to be connected within a plurality of electrical circuits; and a cylindrical member disposed between said brush block assembly and said slipring assembly, said cylindrical member having a plurality of slots formed therethrough for receiving said brush members, and a groove registering with each slot, said cylindrical member being rotatable with respect to said brush block assembly to a position whereby each brush member is transferred into said groove to uniformly retract said brush members from said slipring assembly, wherein there are two rows of brush members mounted with respect to said brush block assembly, and wherein said slots in said cylindrical member are alternately formed in a diametrically opposite position along said cylindrical member.
Claim 11
Dependent Claim
152 words
Apparatus for transferring electrical current comprising a brush block assembly; a plurality of brush members mounted with respect to said brush block assembly; a slipring assembly adapted to rotate with respect to said brush block assembly in engagement with said brush members, said brush block assembly and said slipring assembly adapted to be connected within a plurality of electrical circuits; and a cylindrical member disposed between said brush block assembly and said slipring assembly said cylindrical member having a plurality of slots formed therethrough for receiving said brush members, and a groove registering with each slot, said cylindrical member being rotatable with respect to said brush block assembly to a position whereby each brush member is transferred into said groove to uniformly retract said brush members from said slipring assembly, wherein said slots and said grooves are arcuate, and wherein said grooves are formed in the outer surface of said cylindrical member.
Claim 12
Dependent Claim
152 words
Apparatus for transferring electrical current comprising a brush block assembly; a plurality of brush members mounted with respect to said brush block assembly; a slipring assembly adapted to rotate with respect to said brush block assembly in engagement with said brush members, said brush block assembly and said slipring assembly adapted to be connected within a plurality of electrical circuits; and a cylindrical member disposed between said brush block assembly and said slipring assembly said cylindrical member having a plurality of slots formed therethrough for receiving said brush members, and a groove registering with each slot, said cylindrical member being rotatable with respect to said brush block assembly to a position whereby each brush member is transferred into said groove to uniformly retract said brush members from said slipring assembly, wherein said slots and said grooves are arcuate, and wherein said grooves are formed in the outer surface of said cylindrical member.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-08-23 | 1975-02-22 | 1975-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-23 | 1979-02-22 | 1979-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-23 | 1983-02-22 | 1983-08-24 | $7700.00 | Window Closed / Lapsed |