Patent Family of GB2265647A#Date: 19 August 2019
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GB9307090D0
published19930526
Text
Priority:
  • 19920404:GB9207408A
  • Legal:
    • GB 9307090A 1996_05_15WAP _APPLICATION WITHDRAWN, TAKEN TO BE WITHDRAWN OR REFUSED ** AFTER PUBLICATION UNDER SECTION 16(1)
    GB2265647A
    published19931006
    filed19930402
    Text
    Title: A drive coupling device for a longitudinally displaceable rotatable drive member
    Applicant:COMPAIR HOLMAN LTD?[GB] * COMPAIR HOLMAN LIMITED
    Inventor: CLARK MALCOLM MALCOLM * CLARK
    IPC: E21B3/02
    IPC: E21B19/16
    Priority:
  • 19920404:GB9207408A
  • References Cited:
  • GB1089268
  • GB1464149
  • GB1499517
  • GB2048995
  • GB2233998
  • US4660634
  • Abstract:
    A drive coupling device for a longitudinally displaceable rotatable drive member (14) having screw threaded connector means for connecting the member (14) to a correspondingly threaded part (11a) of a driven member (11) comprises a longitudinally slidable collar (37) surrounding the driven member (14) and fixed for rotation therewith, the collar being displaceable between a retracted position as shown in which it leaves the said screw threaded portion exposed, and an advanced position in which ft at least partially surrounds the said screw threaded portion (14b) for cooperative engagement with a driven member (11) screw threadedly engaged on the drive member (14). This allows a threaded coupling 11b, 12a to be unscrewed by the drive member without unscrewing the joint between drive member 14 and driven member 11.
    GB9207408D0
    published19920520
    Text
    Priority:
  • 19920404:GB9207408A
  • GB9208389D0
    published19920603
    Text
    Priority:
  • 19920404:GB9207408A
  • results based on data supplied by the database INPADOC using OPEN PATENT SERVICES provided by the European Patent Office
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