WO2007072489A3 - Bubble vial having improved user readability - Google Patents

Bubble vial having improved user readability Download PDF

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Publication number
WO2007072489A3
WO2007072489A3 PCT/IL2006/001475 IL2006001475W WO2007072489A3 WO 2007072489 A3 WO2007072489 A3 WO 2007072489A3 IL 2006001475 W IL2006001475 W IL 2006001475W WO 2007072489 A3 WO2007072489 A3 WO 2007072489A3
Authority
WO
WIPO (PCT)
Prior art keywords
improved user
light
bubble
user readability
filling liquid
Prior art date
Application number
PCT/IL2006/001475
Other languages
French (fr)
Other versions
WO2007072489A2 (en
Inventor
Pinchas Goldstein
Original Assignee
Kapro Ind Ltd
Pinchas Goldstein
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 IL173931A external-priority patent/IL173931A0/en
Application filed by Kapro Ind Ltd, Pinchas Goldstein filed Critical Kapro Ind Ltd
Publication of WO2007072489A2 publication Critical patent/WO2007072489A2/en
Publication of WO2007072489A3 publication Critical patent/WO2007072489A3/en

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)
  • External Artificial Organs (AREA)
  • Medical Preparation Storing Or Oral Administration Devices (AREA)

Abstract

Bubble vials with improved user readability for assisting users to accurately interpret a bubble's position relative to its reference markings for use in a wide range of leveling instruments. Improved user readability can be achieved by a bright colored elongated leveling aid (17) against a substantially opaque light colored filling liquid (21) or a light colored elongated leveling aid against a substantially opaque dark colored filling liquid. The elongated leveling aid can be implemented with different transverse cross sections and be preferably illuminated by artificial and/or ambient light. Alternatively, improved user readability can be achieved by an illuminated light pipe-like bubble vial (80) with a light source (89) and a reflective surface (91) at opposite ends, and color contrasting light source and filling liquid (83).
PCT/IL2006/001475 2005-12-23 2006-12-24 Bubble vial having improved user readability WO2007072489A2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US75317005P 2005-12-23 2005-12-23
US60/753,170 2005-12-23
IL173931A IL173931A0 (en) 2006-02-26 2006-02-26 Bubble vial
IL173931 2006-02-26

Publications (2)

Publication Number Publication Date
WO2007072489A2 WO2007072489A2 (en) 2007-06-28
WO2007072489A3 true WO2007072489A3 (en) 2007-09-20

Family

ID=37852341

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IL2006/001475 WO2007072489A2 (en) 2005-12-23 2006-12-24 Bubble vial having improved user readability

Country Status (1)

Country Link
WO (1) WO2007072489A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD750984S1 (en) 2014-09-30 2016-03-08 Kapro Industries Ltd. Box spirit level with ruler

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IL195885A0 (en) * 2008-12-11 2009-09-01 Kapro Ind Ltd Spirit level with color contrasted bubble vial
MX2012012758A (en) 2010-05-03 2012-12-17 Swanson Tool Company Inc Lighted level tool.
USD730207S1 (en) 2014-03-05 2015-05-26 Kapro Industries Ltd. Spirit level
USD805928S1 (en) 2016-09-21 2017-12-26 Kapro Industries Ltd. Stud layout level

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US771803A (en) * 1903-10-06 1904-10-11 John Bishop Spirit-level.
US1654248A (en) * 1925-05-16 1927-12-27 Erdmann Friedrich Illuminated level
GB993715A (en) * 1961-12-11 1965-06-02 English Electric Co Ltd Improvements in or relating to tilt-sensitive devices
US5003699A (en) * 1982-07-19 1991-04-02 Wright Randall J Level vial with extender pitch range

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US771803A (en) * 1903-10-06 1904-10-11 John Bishop Spirit-level.
US1654248A (en) * 1925-05-16 1927-12-27 Erdmann Friedrich Illuminated level
GB993715A (en) * 1961-12-11 1965-06-02 English Electric Co Ltd Improvements in or relating to tilt-sensitive devices
US5003699A (en) * 1982-07-19 1991-04-02 Wright Randall J Level vial with extender pitch range

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD750984S1 (en) 2014-09-30 2016-03-08 Kapro Industries Ltd. Box spirit level with ruler

Also Published As

Publication number Publication date
WO2007072489A2 (en) 2007-06-28

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