Weighing scale for small loads

Details Weighing scale for small loads Weighing scale for small loads

1979-10-09

1981-11-17

Hartary, Joseph W.

Weighing scales

Self-positioning

Electrical current generating or modifying

177229, G01G 308

Patent

active

043006450

ABSTRACT:
An elongated bending beam and an elongated flexure strap are supported in substantially parallel, spaced-apart relationship by end cantilever blocks one of which is secured to a scale base and the other of which mounts a food receiving platform for movement vertically with respect to the scale base. First and second pairs of matched strain sensing resistors are bonded to the opposite faces of the bending beam adjacent the opposite ends thereof and are connected electrically to form a balanced Wheatstone bridge, the output voltage of which is utilized to operate a digital read-out unit for indicating the weight of a small portion of sliced food deposited upon the scale platform from a food slicer, and is also utilized to turn off the food slicer when the desired weight of food is deposited on the scale platform.

REFERENCES:
patent: 3047084 (1962-07-01), Vogel
patent: 3788411 (1974-01-01), Oxley
patent: 3807517 (1974-04-01), Freeman
patent: 4091885 (1978-05-01), Oxley
patent: 4128001 (1978-12-01), Marks

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