Compact level

Details Compact level Compact level

1985-03-21

1986-05-27

Stearns, Richard R.

Geometrical instruments

Indicator of direction of force traversing natural media

Level or plumb, terrestrial gravitation responsive

33388, G01C 928

Patent

active

045906823

ABSTRACT:
A level containing horizontal, vertical and rotatable bubble capsules is constructed using only two different housing parts. The main housing is comprised of two identical halves secured back to back. A cylindrical chamber which houses the rotatable bubble is also comprised of two identical halves secured back to back. The structure is simple and economical to produce.

REFERENCES:
patent: 1012668 (1911-12-01), Lofberg
patent: 2541880 (1951-02-01), McMillan et al.
patent: 2805489 (1957-09-01), Kroll
patent: 4073062 (1978-02-01), Wright
patent: 4109392 (1978-08-01), Streeter
patent: 4419833 (1983-12-01), Wright

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