Patent US3686514A successfully refreshed from Google Patents.
US3686514A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Slip ring assembly
Assignee: Ney J M Co
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Filing: 1971-07-16
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Granted: 1972-08-22
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Expires: 1991-07-16
Abstract
Abstract A slip ring assembly employs an elongated shaft which has a number of axially extending surface channels about its circumference and which has mounted thereon a number of contact sets consisting of an annular spacer and a contact member. Each contact member has an element projecting into one of the channels and connected to a lead wire seated therein, and each contact member has at least a portion of its external surface partially exposed for electrical contact by an external member.
Inventors
- 👤 Milford J Dube
- 👤 Robert A Semrow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:06
CPC Classifications
H; H01; H01R; H01R39/00
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
186 words
In a slip ring assembly, the combination comprising: an elongated shaft having a multiplicity of axially extending surface channels spaced about the periphery thereof; a plurality of lead wires, each seated in and extending along one of said channels; and a plurality of substantially identical contact sets adjacently mounted upon said shaft along the length thereof over said channels, each of said contact sets comprising a generally annular metallic contact member and a generally annular spacer of insulating material, said spacer having a spacing portion at one end thereof and a support portion extending axially therefrom, said contact member extending circumferentially about said support portion and having its exterior surface at least partially exposed thereon for external contact, and said contact member having a contact element extending into one of said plurality of channels and electrically connected to said lead wire seated therein, said spacing portion of said spacer of one of said contact sets extending between the contact member thereof and the contact member of an adjacent contact set to isolate the contact member of one set from the contact member of the adjacent set.
Claim 2
Dependent Claim
186 words
In a slip ring assembly, the combination comprising: an elongated shaft having a multiplicity of axially extending surface channels spaced about the periphery thereof; a plurality of lead wires, each seated in and extending along one of said channels; and a plurality of substantially identical contact sets adjacently mounted upon said shaft along the length thereof over said channels, each of said contact sets comprising a generally annular metallic contact member and a generally annular spacer of insulating material, said spacer having a spacing portion at one end thereof and a support portion extending axially therefrom, said contact member extending circumferentially about said support portion and having its exterior surface at least partially exposed thereon for external contact, and said contact member having a contact element extending into one of said plurality of channels and electrically connected to said lead wire seated therein, said spacing portion of said spacer of one of said contact sets extending between the contact member thereof and the contact member of an adjacent contact set to isolate the contact member of one set from the contact member of the adjacent set.
Claim 3
Dependent Claim
55 words
The assembly of claim 1 wherein in each of said contact sets said contact member has a cylindrical portion seated upon said support portion of said spacer and a tab portion at one end extending radially inwardly along and beyond the other end of said spacer into the associated channel to provide said contact element.
Claim 4
Dependent Claim
21 words
The assembly of claim 2 wherein said contact member of each of said sets is fabricated from A wrought gold alloy.
Claim 5
Dependent Claim
55 words
The assembly of claim 2 wherein said support portion of said spacer in each of said sets is generally cylindrical and wherein the outer surface of said one end of said spacer has an annular, coaxial recess formed therein, the cylindrical other end of the spacer of the adjacent set being seated in said recess.
Claim 6
Dependent Claim
103 words
The assembly of claim 4 including at least three contact sets, wherein in each of said sets said outer end of said cylindrical portion of said contact member has a circumferential lip portion extending radially inwardly thereabout, wherein said other end of said spacer is bevelled for a short axial distance to facilitate mounting of said contact member thereon, and wherein said lip portion of said contact member overlies said other end of said spacer, the lip portion of the contact member of one set being seated in the annular recess formed in the one end of the spacer of an adjacent set.
Claim 7
Dependent Claim
42 words
The assembly of claim 1 additionally including a mounting fixture at one end of said shaft and retaining means at the opposite end thereof, said fixture and retaining means being affixed to said shaft with said plurality of contact sets secured therebetween.
Claim 8
Dependent Claim
19 words
The assembly of claim 6 wherein said shaft and mounting fixture have interengaging means preventing substantial relative rotation thereof.
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) | 1975-08-22 | 1976-02-21 | 1976-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-22 | 1980-02-21 | 1980-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-22 | 1984-02-21 | 1984-08-22 | $7700.00 | Window Closed / Lapsed |