CA997137A - Hydrostatic leveling apparatus with control operator - Google Patents

Hydrostatic leveling apparatus with control operator

Info

Publication number
CA997137A
CA997137A CA195,214A CA195214A CA997137A CA 997137 A CA997137 A CA 997137A CA 195214 A CA195214 A CA 195214A CA 997137 A CA997137 A CA 997137A
Authority
CA
Canada
Prior art keywords
control operator
leveling apparatus
hydrostatic leveling
hydrostatic
operator
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
CA195,214A
Other versions
CA195214S (en
Inventor
Walter S. Gearhart
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.)
Individual
Original Assignee
Individual
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
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of CA997137A publication Critical patent/CA997137A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C5/00—Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels
    • G01C5/04—Hydrostatic levelling, i.e. by flexibly interconnected liquid containers at separated points

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Devices For Dispensing Beverages (AREA)
CA195,214A 1973-03-19 1974-03-18 Hydrostatic leveling apparatus with control operator Expired CA997137A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00342515A US3835548A (en) 1973-03-19 1973-03-19 Hydrostatic leveling apparatus with control operator

Publications (1)

Publication Number Publication Date
CA997137A true CA997137A (en) 1976-09-21

Family

ID=23342168

Family Applications (1)

Application Number Title Priority Date Filing Date
CA195,214A Expired CA997137A (en) 1973-03-19 1974-03-18 Hydrostatic leveling apparatus with control operator

Country Status (2)

Country Link
US (1) US3835548A (en)
CA (1) CA997137A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5101571A (en) * 1989-12-18 1992-04-07 Albert Bertoti Hydrostatic plumber's level
GB2283818A (en) * 1993-11-10 1995-05-17 John Ashworth Level-indicating device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3310880A (en) * 1964-10-29 1967-03-28 Abner W Watts Gravity type hydraulic amplifier precise level
US3645135A (en) * 1970-08-24 1972-02-29 Schwien Eng Inc Mercury system

Also Published As

Publication number Publication date
US3835548A (en) 1974-09-17

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