Car seat level indicator

Details Car seat level indicator Car seat level indicator

1990-11-19

1991-10-22

Haroian, Harry N.

Geometrical instruments

Indicator of direction of force traversing natural media

Level or plumb, terrestrial gravitation responsive

33347, 33333, G01C 902

Patent

active

050582836

ABSTRACT:
A positioning device for a car seat indicates when the car seat has been properly positioned in an automobile or on a shopping cart. The positioning device includes a paper backing which is encapsulated in a plastic housing. The plastic housing includes a relief projection in the shape of an arc. A ball slides within the relief projection and against the paper backing. Printed information on the paper backing indicates when the seat is in the proper orientation according to the position of the ball.

REFERENCES:
patent: 28088 (1860-05-01), Keeler
patent: 685569 (1901-10-01), Bullard
patent: 2527982 (1957-10-01), Brock
patent: 3111563 (1964-01-01), Selbman
patent: 3422544 (1969-01-01), Wyse
patent: 4100681 (1978-07-01), Hollander
patent: 4126944 (1978-11-01), Burkhart
patent: 4228982 (1980-10-01), Sellers
patent: 4554994 (1985-11-01), Weiner
patent: 4775183 (1988-10-01), Tsuge et al.

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