Patent US2255339A successfully refreshed from Google Patents.
US4031990A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Set of current collecting elements used for a current collecting roller
Assignee: Sumitomo Rubber Industries Ltd
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Filing: 1975-11-14
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Granted: 1977-06-28
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Expires: 1995-11-14
Abstract
Abstract There is disclosed a set of current collecting elements used for a current collecting roller which feeds current to a transportation apparatus. The set of current collecting elements comprises a plurality of electroconductive elements arranged in juxtaposed relation to one another, said electroconductive elements being tightly and rigidly secured to each other by a lead wire at the lower portion of said elements. The current collecting roller using the present sets of current collecting elements is protected from being damaged by heat being generated between current collecting member and each of the electroconductive elements.
Inventors
- 👤 Kazumi Matsui
- 👤 Takashi Umemori
- 👤 Yutaka Shibata
- 👤 Kinzo Yamamura
- 👤 Tamisuke Kimura
- 👤 Tomokazu Kashiwara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:32
CPC Classifications
B; B60; B60C; B60C19/00; B60C19/08; B60L; B60L5/00; B60L5/38; B60L2200/00; B60L2200/26
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
56 words
A current collecting apparatus for use in a current collecting member operatively connected to a current collecting roller, said current collecting apparatus comprising: a plurality of juxtaposed electroconductive elements having truncated lower portions with at least one hole therethrough; and a lead wire fitted through and secured to said holes in said plurality of electroconductive elements.
Claim 2
Dependent Claim
56 words
A current collecting apparatus for use in a current collecting member operatively connected to a current collecting roller, said current collecting apparatus comprising: a plurality of juxtaposed electroconductive elements having truncated lower portions with at least one hole therethrough; and a lead wire fitted through and secured to said holes in said plurality of electroconductive elements.
Claim 3
Dependent Claim
19 words
An apparatus as claimed in claim 1, wherein said hole is tightly squeezed around and secured to said wire.
Claim 4
Dependent Claim
15 words
An apparatus as claimed in claim 2, wherein said wire is welded into said hole.
Claim 5
Dependent Claim
80 words
A current collecting apparatus for use in a current collecting member operatively connected to a current collecting roller, said current collecting apparatus comprising: a plurality of electroconductive elements of hairpin-shaped electroconductive metal positioned adjacent each other, each of said elements having an enlarged open portion at the bottom portion thereof; a coupling piece attached across the bottom of said plurality of electroconductive elements; and a lead wire fitted through and secured to said bottom open portion in said electroconductive elements.
Claim 6
Dependent Claim
80 words
A current collecting apparatus for use in a current collecting member operatively connected to a current collecting roller, said current collecting apparatus comprising: a plurality of electroconductive elements of hairpin-shaped electroconductive metal positioned adjacent each other, each of said elements having an enlarged open portion at the bottom portion thereof; a coupling piece attached across the bottom of said plurality of electroconductive elements; and a lead wire fitted through and secured to said bottom open portion in said electroconductive elements.
Claim 7
Dependent Claim
20 words
An apparatus as claimed in claim 4, wherein said open portion is tightly squeezed around and secured to said wire.
Claim 8
Dependent Claim
16 words
An apparatus as claimed in claim 4, wherein said wire is welded into said open portion.
Claim 9
Dependent Claim
64 words
A current collecting apparatus for use in a current collecting member operatively connected to a current collecting roller, said current collecting apparatus comprising: a comb-shaped electroconductive plate of U-shaped cross-section having a plurality of electroconductive tooth portions, and having at least one opening through the lower portion thereof; and a lead wire fitted through and secured to said opening in said electroconductive metal plate.
Claim 10
Dependent Claim
64 words
A current collecting apparatus for use in a current collecting member operatively connected to a current collecting roller, said current collecting apparatus comprising: a comb-shaped electroconductive plate of U-shaped cross-section having a plurality of electroconductive tooth portions, and having at least one opening through the lower portion thereof; and a lead wire fitted through and secured to said opening in said electroconductive metal plate.
Claim 11
Dependent Claim
19 words
An apparatus as claimed in claim 7, wherein said opening is tightly squeezed around and secured to said wire.
Claim 12
Dependent Claim
15 words
An apparatus as claimed in claim 8, wherein said wire is welded into said opening.
References Cited (Backward Citations)
US1859343A
Cited
US2686891A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-06-27 | 1980-12-27 | 1981-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-06-27 | 1984-12-27 | 1985-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-06-27 | 1988-12-27 | 1989-06-28 | $7700.00 | Window Closed / Lapsed |