GB2245063B - Compass - Google Patents

Compass

Info

Publication number
GB2245063B
GB2245063B GB9110313A GB9110313A GB2245063B GB 2245063 B GB2245063 B GB 2245063B GB 9110313 A GB9110313 A GB 9110313A GB 9110313 A GB9110313 A GB 9110313A GB 2245063 B GB2245063 B GB 2245063B
Authority
GB
United Kingdom
Prior art keywords
compass
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
GB9110313A
Other languages
English (en)
Other versions
GB9110313D0 (en
GB2245063A (en
Inventor
Raimo Raitmaa
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.)
SISTECO Ltd Oy
Original Assignee
SISTECO Ltd Oy
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 SISTECO Ltd Oy filed Critical SISTECO Ltd Oy
Publication of GB9110313D0 publication Critical patent/GB9110313D0/en
Publication of GB2245063A publication Critical patent/GB2245063A/en
Application granted granted Critical
Publication of GB2245063B publication Critical patent/GB2245063B/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
    • G01C17/00—Compasses; Devices for ascertaining true or magnetic north for navigation or surveying purposes
    • G01C17/02—Magnetic compasses
    • G01C17/04—Magnetic compasses with north-seeking magnetic elements, e.g. needles
    • G01C17/20—Observing the compass card or needle

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Supports Or Holders For Household Use (AREA)
  • Tables And Desks Characterized By Structural Shape (AREA)
GB9110313A 1990-06-11 1991-05-13 Compass Expired - Fee Related GB2245063B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI902917A FI84756C (fi) 1990-06-11 1990-06-11 Kompass.

Publications (3)

Publication Number Publication Date
GB9110313D0 GB9110313D0 (en) 1991-07-03
GB2245063A GB2245063A (en) 1991-12-18
GB2245063B true GB2245063B (en) 1994-05-11

Family

ID=8530610

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9110313A Expired - Fee Related GB2245063B (en) 1990-06-11 1991-05-13 Compass

Country Status (2)

Country Link
FI (1) FI84756C (fi)
GB (1) GB2245063B (fi)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100437030C (zh) * 2005-07-18 2008-11-26 何展辉 自动充液排气磁罗经
CN106052662A (zh) * 2016-08-12 2016-10-26 瑞安市顺风航仪有限公司 一种磁罗经
CN112525178B (zh) * 2020-12-11 2022-06-24 许岩炯 一种地质矿产勘查用多功能地质罗盘

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB199988A (en) * 1922-09-05 1923-07-05 George Wilson Heath Improvements in mariners' compasses
GB442817A (en) * 1935-05-07 1936-02-17 Charles Henry Johnson Improvements in magnetic compasses
GB487757A (en) * 1937-12-23 1938-06-24 Johannes Boysen Improvements in liquid magnetic compasses
GB795255A (en) * 1955-06-04 1958-05-21 Rolex Montres An improved magnetic compass
GB2025616A (en) * 1978-07-13 1980-01-23 Hogg R J C Magnetic compass
GB2115149A (en) * 1982-02-12 1983-09-01 Hilvenna Ltd Compass
EP0100683A2 (en) * 1982-08-02 1984-02-15 S.G. Brown Limited Apparatus for taking azimuth sights
EP0150163A2 (en) * 1984-01-20 1985-07-31 Söderberg, Jan Orienteering Compass

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB199988A (en) * 1922-09-05 1923-07-05 George Wilson Heath Improvements in mariners' compasses
GB442817A (en) * 1935-05-07 1936-02-17 Charles Henry Johnson Improvements in magnetic compasses
GB487757A (en) * 1937-12-23 1938-06-24 Johannes Boysen Improvements in liquid magnetic compasses
GB795255A (en) * 1955-06-04 1958-05-21 Rolex Montres An improved magnetic compass
GB2025616A (en) * 1978-07-13 1980-01-23 Hogg R J C Magnetic compass
GB2115149A (en) * 1982-02-12 1983-09-01 Hilvenna Ltd Compass
EP0100683A2 (en) * 1982-08-02 1984-02-15 S.G. Brown Limited Apparatus for taking azimuth sights
EP0150163A2 (en) * 1984-01-20 1985-07-31 Söderberg, Jan Orienteering Compass

Also Published As

Publication number Publication date
FI84756C (fi) 1992-01-10
FI84756B (fi) 1991-09-30
FI902917A0 (fi) 1990-06-11
FI902917A (fi) 1991-09-30
GB9110313D0 (en) 1991-07-03
GB2245063A (en) 1991-12-18

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20040513