High contrast spirit-level vial

Details High contrast spirit-level vial High contrast spirit-level vial

2007-09-04

2007-09-04

Fulton, Christopher W (Department: 2859)

Geometrical instruments

Indicator of direction of force traversing natural media

Level or plumb, terrestrial gravitation responsive

Reexamination Certificate

active

10534496

ABSTRACT:
A spirit-level vial comprising a transparent vessel containing a globule of a first liquid suspended in a medium comprising a second liquid, wherein said transparent vessel is essentially completely filled by said medium, and wherein said globule is capable of moving freely through said medium in response to changes in the spatial orientation of said transparent vessel.

REFERENCES:
patent: 771803 (1904-10-01), Bishop
patent: 1309752 (1919-07-01), Bossler
patent: 1563321 (1925-12-01), Bedortha
patent: 1730109 (1929-10-01), Bacon
patent: 2646628 (1953-07-01), Shaler
patent: 3673697 (1972-07-01), Wasson
patent: 4164077 (1979-08-01), Thomas
patent: 4407075 (1983-10-01), MacDermott et al.
patent: 4647767 (1987-03-01), Jubinski
patent: RE32570 (1988-01-01), Conn
patent: 5272816 (1993-12-01), Fujiwara
patent: 5403001 (1995-04-01), Skorpinski
patent: 6386994 (2002-05-01), H'Doubler et al.
patent: 2002/0124425 (2002-09-01), Szumer

Affiliated with

Also associated with

Rating

High contrast spirit-level vial does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with High contrast spirit-level vial, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High contrast spirit-level vial will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3748259