CA666817A - Automatic speed control safety valve for hydraulic elevators - Google Patents

Automatic speed control safety valve for hydraulic elevators

Info

Publication number
CA666817A
CA666817A CA666817A CA666817DA CA666817A CA 666817 A CA666817 A CA 666817A CA 666817 A CA666817 A CA 666817A CA 666817D A CA666817D A CA 666817DA CA 666817 A CA666817 A CA 666817A
Authority
CA
Canada
Prior art keywords
speed control
safety valve
automatic speed
control safety
hydraulic elevators
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
CA666817A
Inventor
F. Jaseph Lawrence
J. Arbogast Duane
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dover Corp
Original Assignee
Dover Corp
Publication date
Application granted granted Critical
Publication of CA666817A publication Critical patent/CA666817A/en
Expired legal-status Critical Current

Links

CA666817A Automatic speed control safety valve for hydraulic elevators Expired CA666817A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA666817T

Publications (1)

Publication Number Publication Date
CA666817A true CA666817A (en) 1963-07-16

Family

ID=35960947

Family Applications (1)

Application Number Title Priority Date Filing Date
CA666817A Expired CA666817A (en) Automatic speed control safety valve for hydraulic elevators

Country Status (1)

Country Link
CA (1) CA666817A (en)

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