Level

Details Level Level

1998-05-28

2000-08-08

Bennett, G. Bradley

Geometrical instruments

Indicator of direction of force traversing natural media

Level or plumb, terrestrial gravitation responsive

33383, G01C 928

Patent

active

060982985

ABSTRACT:
A new level for determining whether surfaces are level and plumb. The inventive device includes an elongate main member and a elongate insertion member. The main member has first and second ends, and top and bottom faces. The top face of the main member has an hole therein. A first bubble vial is provided in the hole of the top face of the main member. The elongate insertion member has first and second ends, and top and bottom faces. The top face of the insertion member has an hole therein. A second bubble vial is provided in the hole of the top face of the insertion member. The second end of the insertion member is slidably received by the first end of the main member. The insertion member is biased away from the second end of the main member in a direction along the longitudinal axis of the main member.

REFERENCES:
patent: 2632256 (1953-03-01), Will
patent: 2670638 (1954-03-01), Roy, Sr.
patent: 2752693 (1956-07-01), Wullschleger
patent: 3104477 (1963-09-01), Edwill
patent: 3277579 (1966-10-01), Murphy
patent: 3638325 (1972-02-01), Petrik
patent: 5263260 (1993-11-01), Smith
patent: 5522146 (1996-06-01), Warburton

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