Electronic weighing device

Details Electronic weighing device Electronic weighing device

1992-12-17

1994-06-14

Miller, Jr., George H.

Weighing scales

Self-positioning

Electrical current generating or modifying

177210FP, 73862638, G01G 314, G01L 122

Patent

active

053212096

ABSTRACT:
A spring structure for a weight scale is described which is assembled from four extruded aluminum parts. The structure readily lends itself to the addition of a platform for placing weights and its deflection resulting from a weight is essentially invariant to the location of the weight on the platform. The sensor which converts deflection of the structure into an electrical signal includes two conducting plates, attached to the structure, which constitute a variable capacitor. The variable capacitor is part of a self-excited oscillator circuit which yields a frequency which is accurately related linearly to the value of the weight. Means are provided for distorting one of the capacitor plates to provide further improvement of invariance to weight location on the platform.

REFERENCES:
patent: 3332506 (1967-07-01), Bradfield
patent: 3418850 (1968-12-01), Goddin
patent: 3595329 (1971-07-01), Withnell
patent: 3713333 (1973-01-01), MacGeorge
patent: 4836314 (1989-06-01), Rupprecht et al.
patent: 5109707 (1992-05-01), VanGerpen

Affiliated with

Also associated with

Rating

Electronic weighing device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electronic weighing device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electronic weighing device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1250747