GB2259570B - Spirit level - Google Patents

Spirit level

Info

Publication number
GB2259570B
GB2259570B GB9218681A GB9218681A GB2259570B GB 2259570 B GB2259570 B GB 2259570B GB 9218681 A GB9218681 A GB 9218681A GB 9218681 A GB9218681 A GB 9218681A GB 2259570 B GB2259570 B GB 2259570B
Authority
GB
United Kingdom
Prior art keywords
spirit level
spirit
level
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 - Fee Related
Application number
GB9218681A
Other versions
GB9218681D0 (en
GB2259570A (en
Inventor
Geoffrey Betts
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
Publication of GB9218681D0 publication Critical patent/GB9218681D0/en
Publication of GB2259570A publication Critical patent/GB2259570A/en
Application granted granted Critical
Publication of GB2259570B publication Critical patent/GB2259570B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
GB9218681A 1991-09-16 1992-09-03 Spirit level Expired - Fee Related GB2259570B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB919119761A GB9119761D0 (en) 1991-09-16 1991-09-16 Spirit level

Publications (3)

Publication Number Publication Date
GB9218681D0 GB9218681D0 (en) 1992-10-21
GB2259570A GB2259570A (en) 1993-03-17
GB2259570B true GB2259570B (en) 1995-01-11

Family

ID=10701479

Family Applications (2)

Application Number Title Priority Date Filing Date
GB919119761A Pending GB9119761D0 (en) 1991-09-16 1991-09-16 Spirit level
GB9218681A Expired - Fee Related GB2259570B (en) 1991-09-16 1992-09-03 Spirit level

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB919119761A Pending GB9119761D0 (en) 1991-09-16 1991-09-16 Spirit level

Country Status (1)

Country Link
GB (2) GB9119761D0 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2655449C (en) 2008-03-07 2017-06-27 The Stanley Works Illuminated level
GB2570919A (en) * 2018-02-09 2019-08-14 Andrew Sparrow Paul Lighting units
CN110702076A (en) * 2019-10-29 2020-01-17 中冶宝钢技术服务有限公司 Level and level

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB685707A (en) * 1950-03-02 1953-01-07 Joseph Ernest Myers Improvements in and relating to spirit levels
GB2025049A (en) * 1978-07-07 1980-01-16 Hopkins Mfg Corp Levels
US4392184A (en) * 1981-02-20 1983-07-05 Hearold Owen E Illuminating method and apparatus for carpenter's or mechanic's levels
GB2250091A (en) * 1990-11-21 1992-05-27 Peter Werbowy Spirit levels

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB685707A (en) * 1950-03-02 1953-01-07 Joseph Ernest Myers Improvements in and relating to spirit levels
GB2025049A (en) * 1978-07-07 1980-01-16 Hopkins Mfg Corp Levels
US4392184A (en) * 1981-02-20 1983-07-05 Hearold Owen E Illuminating method and apparatus for carpenter's or mechanic's levels
GB2250091A (en) * 1990-11-21 1992-05-27 Peter Werbowy Spirit levels

Also Published As

Publication number Publication date
GB9218681D0 (en) 1992-10-21
GB9119761D0 (en) 1991-10-30
GB2259570A (en) 1993-03-17

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee