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US3341669A Expired / Lapsed US ⏱️ 0.0 years remaining

Current conductor rail system

Assignee: Hk Porter Company Inc
•
Filing: 1964-03-11
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Granted: 1967-09-12
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Expires: 1984-03-11
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Abstract

No abstract record available.

Inventors

  • 👤 Gerald E Martin
  • 👤 Donald G Sprigings

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-06 17:35
CPC Classifications
H; H02; H02G; H02G5/00; H02G5/04

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 155 words
A CURRENT CONDUCTOR RAIL SECTION FOR USE IN SYSTEMS FOR SUPPLYING ELECTRICAL ENERGY TO ELECTRICALLY ENERGIZABLE MOVABLE UTILITIES CARRYING CURRENT COLLECTOR DEVICES ENGAGEABLE WITH SUCH RAIL, COMPRISING IN COMBINATION: (A) A MAIN CURRENT-CARRYING MEMBER OF HIGH ELECTRICAL CONDUCTIVITY FORMED IN THE SHAPE OF A STRUCTURAL MEMBER, (B) AN ELECTRICALLY CONDUCTIVE CAP MEMBER OF SMALLER CROSS-SECTIONAL AREA THAN SAID MAIN MEMBER MECHANICALLY INTERFITTED WITH AND LOCKED TO SAID MAIN MEMBER IN GOOD ELECTRICAL CONTACT THEREWITH TO PROVIDE A FACING FOR THE LATTER AND WHICH IS TO BE ENGAGED BY THE CURRENT COLLECTOR DEVICES OF THE AFORESAID MOVABLE UTILITIES, AND CAP MEMBER BEING FORMED FROM A MATERIAL CHARACTERIZED BY THE ABILITY TO WORK HARDEN ON THE SURFACE, AND (C) A THERMOSETTING CONDUCTIVE PLASTIC MATERIAL DISPOSED BETWEEN ALL OF THE NON-CONTACTING SURFACES OF THE MECHANICALLY INTERFITTED PARTS OF SAID MAIN MEMBER AND CAP MEMBERS TO FILL ANY VOID SPACES THEREBETWEEN AND FUNCTION AS A SEAL AND CONDUCTIVE BOND.
Claim 2
Dependent Claim 155 words
A CURRENT CONDUCTOR RAIL SECTION FOR USE IN SYSTEMS FOR SUPPLYING ELECTRICAL ENERGY TO ELECTRICALLY ENERGIZABLE MOVABLE UTILITIES CARRYING CURRENT COLLECTOR DEVICES ENGAGEABLE WITH SUCH RAIL, COMPRISING IN COMBINATION: (A) A MAIN CURRENT-CARRYING MEMBER OF HIGH ELECTRICAL CONDUCTIVITY FORMED IN THE SHAPE OF A STRUCTURAL MEMBER, (B) AN ELECTRICALLY CONDUCTIVE CAP MEMBER OF SMALLER CROSS-SECTIONAL AREA THAN SAID MAIN MEMBER MECHANICALLY INTERFITTED WITH AND LOCKED TO SAID MAIN MEMBER IN GOOD ELECTRICAL CONTACT THEREWITH TO PROVIDE A FACING FOR THE LATTER AND WHICH IS TO BE ENGAGED BY THE CURRENT COLLECTOR DEVICES OF THE AFORESAID MOVABLE UTILITIES, AND CAP MEMBER BEING FORMED FROM A MATERIAL CHARACTERIZED BY THE ABILITY TO WORK HARDEN ON THE SURFACE, AND (C) A THERMOSETTING CONDUCTIVE PLASTIC MATERIAL DISPOSED BETWEEN ALL OF THE NON-CONTACTING SURFACES OF THE MECHANICALLY INTERFITTED PARTS OF SAID MAIN MEMBER AND CAP MEMBERS TO FILL ANY VOID SPACES THEREBETWEEN AND FUNCTION AS A SEAL AND CONDUCTIVE BOND.

References Cited (Backward Citations)

US70399A Cited
GB189811251A Cited
GB190004859A Cited
GB190309685A Cited
US945374A Cited
US923150A Cited
US1068813A Cited
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US3222464A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1970-09-11 1971-03-13 1971-09-12 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1974-09-11 1975-03-13 1975-09-12 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1978-09-11 1979-03-13 1979-09-12 $7700.00 Window Closed / Lapsed

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