ATE90141T1 - INTERNAL CLAMP FOR AN OVERHEAD DRIVE DEVICE. - Google Patents

INTERNAL CLAMP FOR AN OVERHEAD DRIVE DEVICE.

Info

Publication number
ATE90141T1
ATE90141T1 AT88302818T AT88302818T ATE90141T1 AT E90141 T1 ATE90141 T1 AT E90141T1 AT 88302818 T AT88302818 T AT 88302818T AT 88302818 T AT88302818 T AT 88302818T AT E90141 T1 ATE90141 T1 AT E90141T1
Authority
AT
Austria
Prior art keywords
drive device
internal clamp
overhead drive
overhead
clamp
Prior art date
Application number
AT88302818T
Other languages
German (de)
Inventor
Keith Mallory Haney
Original Assignee
Apache Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US07/079,024 external-priority patent/US4762187A/en
Application filed by Apache Corp filed Critical Apache Corp
Priority claimed from EP88302818A external-priority patent/EP0285386B1/en
Application granted granted Critical
Publication of ATE90141T1 publication Critical patent/ATE90141T1/en

Links

AT88302818T 1987-04-02 1988-03-30 INTERNAL CLAMP FOR AN OVERHEAD DRIVE DEVICE. ATE90141T1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US3448287A 1987-04-02 1987-04-02
US07/079,024 US4762187A (en) 1987-07-29 1987-07-29 Internal wrench for a top head drive assembly
EP88302818A EP0285386B1 (en) 1987-04-02 1988-03-30 Internal wrench for a top head drive assembly

Publications (1)

Publication Number Publication Date
ATE90141T1 true ATE90141T1 (en) 1993-06-15

Family

ID=27231526

Family Applications (1)

Application Number Title Priority Date Filing Date
AT88302818T ATE90141T1 (en) 1987-04-02 1988-03-30 INTERNAL CLAMP FOR AN OVERHEAD DRIVE DEVICE.

Country Status (1)

Country Link
AT (1) ATE90141T1 (en)

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Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties