Headlamp indicating device with highlighted level bubble

Details Headlamp indicating device with highlighted level bubble Headlamp indicating device with highlighted level bubble

1994-03-14

1995-05-16

Cuchlinski, Jr., William A.

Geometrical instruments

Indicator of direction of force traversing natural media

Level or plumb, terrestrial gravitation responsive

33288, 33385, 362 61, G01C 932

Patent

active

054149371

ABSTRACT:
The indicating device includes a bubble level formed by a transparent plastic vial filled with liquid having a gas bubble therein, the bubble coacting with an underlying scale to indicate the degree of tilt of the vial from horizontal. To enhance the visibility of the bubble and enable more accurate readings, portions of the vial are darkened with a strip of black material adapted to be secured to the vial by pressure-sensitive adhesive. A cap for closing the vial is darkened by molding the cap from black-tinted plastic.

REFERENCES:
patent: 1082163 (1913-12-01), Lung
patent: 5140593 (1992-08-01), Lisak
patent: 5207004 (1993-05-01), Gruetzmacher
patent: 5359499 (1994-10-01), Denley

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