Patent US3090840A successfully refreshed from Google Patents.
US3090840A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conductor bar support
Assignee: Cleveland Crane and Engineering Co
•
Filing: 1958-06-04
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Granted: 1963-05-21
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Expires: 1978-06-04
Abstract
No abstract record available.
Inventors
- 👤 Roy F Dehn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:44
CPC Classifications
H; H02; H02G; H02G5/00; H02G5/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
IN A MATERIAL HANDLING DEVICE HAVING A TRACK, AN APPARATUS ON SAID TRACK AND MOVABLE THEREALONG, ELECTRICAL EQUIPEMENT ON SAID APPARATUS AND AN ELECTRIC CURRENT CONTACT MEMBER ON SAID APPARATUS AND ELECTRICALLY CONNECTED TO SAID ELECTRICAL EQUIPMENT, AN ELECTRICAL CONDUCTOR SYSTEM COMPRISING: A RIGID, ELONGATED BAR-TYPE ELECTRIC CURRENT CONDUCTOR OF PREDETERMINED LENGTH FORMED OF A MATERIAL WHICH EXPANDS OR CONTRACTS UPON CHANGE IN ITS TEMPERATURE AND ADAPTED TO BE ENGAGED BY SAID CONTACT MEMBER, MEANS FIXEDLY ANCHORING SAID BAR-TYPE CONDUCTOR AT ONLY ONE POINT THROUGHOUT ITS SAID PREDETERMINED LENGTH AGAINT BODILY MOVEMENT LENGTHWISE, AND MEANS ROLLABLY ENGAGING AND SUPPORTING SAID BAR-TYPE CONDUCTOR ADAPTED SO THAT THE CONDUCTOR IS FREE TO EXPAND AND/OR CONTRACT WITHOUT DEFORMATION RELATIVE TO SAID ENGAGING AND SUPPORTING MEANS BUT IS FIXED AGAINST LENGTHWISE BODILY MOVEMENT.
Claim 2
Dependent Claim
129 words
IN A MATERIAL HANDLING DEVICE HAVING A TRACK, AN APPARATUS ON SAID TRACK AND MOVABLE THEREALONG, ELECTRICAL EQUIPEMENT ON SAID APPARATUS AND AN ELECTRIC CURRENT CONTACT MEMBER ON SAID APPARATUS AND ELECTRICALLY CONNECTED TO SAID ELECTRICAL EQUIPMENT, AN ELECTRICAL CONDUCTOR SYSTEM COMPRISING: A RIGID, ELONGATED BAR-TYPE ELECTRIC CURRENT CONDUCTOR OF PREDETERMINED LENGTH FORMED OF A MATERIAL WHICH EXPANDS OR CONTRACTS UPON CHANGE IN ITS TEMPERATURE AND ADAPTED TO BE ENGAGED BY SAID CONTACT MEMBER, MEANS FIXEDLY ANCHORING SAID BAR-TYPE CONDUCTOR AT ONLY ONE POINT THROUGHOUT ITS SAID PREDETERMINED LENGTH AGAINT BODILY MOVEMENT LENGTHWISE, AND MEANS ROLLABLY ENGAGING AND SUPPORTING SAID BAR-TYPE CONDUCTOR ADAPTED SO THAT THE CONDUCTOR IS FREE TO EXPAND AND/OR CONTRACT WITHOUT DEFORMATION RELATIVE TO SAID ENGAGING AND SUPPORTING MEANS BUT IS FIXED AGAINST LENGTHWISE BODILY MOVEMENT.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-05-20 | 1966-11-19 | 1967-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-20 | 1970-11-19 | 1971-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-20 | 1974-11-19 | 1975-05-21 | $7700.00 | Window Closed / Lapsed |