AU726816B2 - Spirit level - Google Patents

Spirit level Download PDF

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Publication number
AU726816B2
AU726816B2 AU47933/97A AU4793397A AU726816B2 AU 726816 B2 AU726816 B2 AU 726816B2 AU 47933/97 A AU47933/97 A AU 47933/97A AU 4793397 A AU4793397 A AU 4793397A AU 726816 B2 AU726816 B2 AU 726816B2
Authority
AU
Australia
Prior art keywords
spirit level
face
viewing
image
mirror
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
AU47933/97A
Other languages
English (en)
Other versions
AU4793397A (en
Inventor
Duane Zugel
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=21866376&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=AU726816(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Individual filed Critical Individual
Publication of AU4793397A publication Critical patent/AU4793397A/en
Application granted granted Critical
Publication of AU726816B2 publication Critical patent/AU726816B2/en
Anticipated expiration legal-status Critical
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
    • G01C9/00—Measuring inclination, e.g. by clinometers, by levels
    • G01C9/18—Measuring inclination, e.g. by clinometers, by levels by using liquids
    • G01C9/24—Measuring inclination, e.g. by clinometers, by levels by using liquids in closed containers partially filled with liquid so as to leave a gas bubble
    • G01C9/26—Details
    • G01C9/32—Means for facilitating the observation of the position of the bubble, e.g. illuminating means

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Road Signs Or Road Markings (AREA)
  • Percussion Or Vibration Massage (AREA)
  • Medical Preparation Storing Or Oral Administration Devices (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)
  • Indicating Or Recording The Presence, Absence, Or Direction Of Movement (AREA)
  • Toys (AREA)
  • Facsimile Scanning Arrangements (AREA)
  • Telescopes (AREA)
  • Length Measuring Devices By Optical Means (AREA)
AU47933/97A 1996-12-12 1997-11-07 Spirit level Expired AU726816B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US3270296P 1996-12-12 1996-12-12
US60/032702 1996-12-12
PCT/IL1997/000359 WO1998026251A1 (en) 1996-12-12 1997-11-07 Spirit level

Publications (2)

Publication Number Publication Date
AU4793397A AU4793397A (en) 1998-07-03
AU726816B2 true AU726816B2 (en) 2000-11-23

Family

ID=21866376

Family Applications (1)

Application Number Title Priority Date Filing Date
AU47933/97A Expired AU726816B2 (en) 1996-12-12 1997-11-07 Spirit level

Country Status (10)

Country Link
JP (1) JP2001506007A (it)
CN (1) CN1624424A (it)
AU (1) AU726816B2 (it)
BE (1) BE1011613A3 (it)
DE (1) DE29703035U1 (it)
FR (1) FR2757268B1 (it)
GB (1) GB2321520B (it)
IL (1) IL130288A (it)
IT (1) IT1294991B1 (it)
WO (1) WO1998026251A1 (it)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0606924D0 (en) 2006-04-07 2006-05-17 Sparrow Paul A Coloured-illuminated sonic level, set square and angle finder
DE102006054144A1 (de) * 2006-11-15 2008-05-21 Triuso-Qualitätswerkzeuge GmbH Wasserwaage
GB0724065D0 (en) * 2007-12-10 2008-01-16 Sparrow Paul A A spirit level
DE102008056005B3 (de) 2008-11-05 2010-04-22 Carsten Michalski Elektrooptisches Messsystem
JP2011133346A (ja) * 2009-12-24 2011-07-07 Disco Abrasive Syst Ltd 水準器
GB2590371A (en) 2019-12-10 2021-06-30 Vitec Group Plc Spirit level for camera tripods

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2727314A (en) * 1952-12-09 1955-12-20 Thomas J Dossie Combination spirit level and plumb
US2750677A (en) * 1951-12-20 1956-06-19 Wirth Armin Bubble level

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE306455C (it) *
GB212823A (en) * 1923-08-09 1924-03-20 Henry Thomas Tallack An improved reflecting system for use with tubular spirit levels
US2133598A (en) * 1936-03-04 1938-10-18 Jr John E Torbert Mirror for spirit levels
GB503065A (en) * 1938-09-01 1939-03-30 Gruber Hans Improvements in levels and inclinometers
US2466829A (en) * 1946-07-16 1949-04-12 Sprinkel Ernest Double bubble l-shaped mirrored level
US2791036A (en) * 1956-02-07 1957-05-07 Alexander A Gericke Liquid level
US3064535A (en) * 1959-01-13 1962-11-20 Roy N Anderson Level with mirror
US4103430A (en) * 1977-08-31 1978-08-01 Schrader Joseph F Viewing device for a bubble level
GB2162947A (en) * 1984-08-06 1986-02-12 Brian Edward Parker Level
WO1996003258A1 (de) * 1994-07-22 1996-02-08 Lumako Ag Vorrichtung zur kontrolle des bohrwinkels beim freien einsatz einer handbohrmaschine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2750677A (en) * 1951-12-20 1956-06-19 Wirth Armin Bubble level
US2727314A (en) * 1952-12-09 1955-12-20 Thomas J Dossie Combination spirit level and plumb

Also Published As

Publication number Publication date
AU4793397A (en) 1998-07-03
IT1294991B1 (it) 1999-04-27
IL130288A0 (en) 2000-06-01
GB9718016D0 (en) 1997-10-29
GB2321520B (en) 2001-07-04
DE29703035U1 (de) 1997-04-10
IL130288A (en) 2003-05-29
CN1624424A (zh) 2005-06-08
BE1011613A3 (fr) 1999-11-09
FR2757268B1 (fr) 2000-08-11
ITMI972038A1 (it) 1999-03-05
WO1998026251A1 (en) 1998-06-18
GB2321520A (en) 1998-07-29
JP2001506007A (ja) 2001-05-08
FR2757268A1 (fr) 1998-06-19

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Legal Events

Date Code Title Description
FGA Letters patent sealed or granted (standard patent)