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US3623902A Expired / Lapsed US ⏱️ 0.0 years remaining

Method of moving a working station with reference to a substantially vertical surface

Assignee: Individual
•
Filing: 1969-02-26
•
Granted: 1971-11-30
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Expires: 1989-02-26
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Abstract

Abstract METHOD AND ARRANGEMENT FOR MOVING A WORKING STATION WITH REFERENCE TO A SUBSTANTIALLY VERTICAL SURFACE, PARTICULARLY THE EXTERNAL SURFACE OF A SHIP HULL. A VEHICLE IS ADVANCED IN A HORIZONTAL PATH ADJACENT TO AND ALONG THE SURFACE AND A WORKING STATION, MOVABLY SUPPORTED ON THE VEHICLE, IS SIMULTANEOUSLY MOVED IN A SUBSTANTIALLY VERTICAL PATH WITH REFERENCE TO THE TRAVELLING VEHICLE BETWEEN AN UPPER AND LOWER END POSITION WHEREBY IT MOVES ALONG A SUBSTANTIALLY VERTICAL STRIP OF THE SURFACE. ON REACHING ONE OR THE OTHER OF ITS END POSITIONS, THE WORKING STATION IS RAPIDLY SHIFTED IN THE DIRECTION OF ADVANCEMENT OF THE VEHICLE AND THEREUPON AGAIN MOVED IN A SUBSTANTIALLY VERTICAL PATH WITH REFERENCE TO THE TRAVELLING VEHICLE ALONG ANOTHER SUBSTANTIALLY VERTICAL STRIP OF THE SURFACE WHICH IS DIRECTLY ADJACENT TO BUT DOES NOT OVERLAP OVER THE FIRST VERTICAL STRIP.

Inventors

  • 👤 Paul Hammelmann

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-24 00:54
CPC Classifications
E; E04; E04G; E04G23/00; E04G23/002; B; B63; B63B; B63B59/00; B63B59/06; B63C; B63C5/00; B63C5/02

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

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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) 1974-11-29 1975-05-31 1975-11-30 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1978-11-29 1979-05-31 1979-11-30 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1982-11-29 1983-05-31 1983-11-30 $7700.00 Window Closed / Lapsed

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