Mass and force meter

• US 4,300,648 A
• Filed: 08/21/1979
• Issued: 11/17/1981
• Est. Priority Date: 03/24/1979
• Status: Expired due to Term

• Current Assignee: K-Tron Patent AG (Hillenbrand Incorporated)
• Original Assignee: Wirth Gallo & Company
• Inventors: Gallo, Mario, Wirth, Johannes
• Primary Examiner(s): Hartary, Joseph W.
• Application Number:
  US06/068,528
• Time in Patent Office: 819 Days
• Field of Search: 177/229, 177/211, 177/210 FP, 177/255, 177/189, 73/141 A
• US Class Current: 177/229
• CPC Class Codes: G01G 3/08 wherein the weighing element is in the form of a leaf spring
• CPC Class Codes: G01G 3/165 Constructional details
• CPC Class Codes: G01G 7/02 by electromagnetic action

Abstract

Mass and force meter with a frame, a load support guided parallely and vertically by parallel guiding means comprising at least two flat springs lying in two at least substantially parallel planes lying one above the other, with a rigid measuring system and a resilient transmission element transmitting only a part of the weight of the mass to be measured or of the force to be measured to the measuring system, said flat springs being fitted in said frame and said load support.

Claims

1. In a mass and force meter, a frame, a load support, means for parallel and vertical guidance of said load support and substantial load counter-acting, a rigid measuring system with a load cell, a transmission element, made from a resilient material, transmitting only the remaining part of the mass or the force to be measured not counter-acted by said means directly to said load cell, said means comprising at least two flat springs mounted each in a separate plane, said planes lying one above the other and being at least substantially parallel to each other, said flat springs having two ends, said ends being fitted in said frame and in said load support.

2. In a mass and force meter, a frame, a load support, means for parallel and vertical guidance of said load support and substantial load counter-acting, a rigid measuring system with a load cell, a transmission element, made from a resilient material, transmitting only the remaining part of the mass or the force to be measured not counter-acted by said means directly to said load cell, and having two ends, one of said ends being fitted in said load support, a rod mounted between said measuring system and the other of said ends of said transmission element, said means comprising at least two flat springs mounted each in a separate plane, said planes lying one above the other and being at least substantially parallel to each other, said flat springs having two ends, said ends being fitted in said frame and in said load support.

3. In a mass and force meter, a frame, a load support, means for parallel and vertical guidance of said load support and substantial load counter-acting, a rigid measuring system with a load cell, a transmission element, made from a resilient material, transmitting only the remaining part of the mass or the force to be measured not counter-acted by said means directly to said load cell, said means comprising at least two flat springs mounted each in a separate plane, said planes lying one above the other and being at least substantially parallel to each other, said flat springs having two ends, said ends being fitted in said frame and in said load support, said transmission element being integral with said flat spring lying above said other flat spring, said transmission element having a free end, a wire mounted between said measuring system and said free end, the latter exerting a traction on said wire.

4. In a mass and force meter, a frame, a load support, means for parallel and vertical guidance of said load support and substantial load counter-acting, a rigid measuring system with a load cell, a transmission element, comprising a circular spring or a helical spring, transmitting only the remaining part of the mass or the force to be measured, not counter-acted by said means, directly to said load cell, a rod mounted between said measuring system and said transmission element, said means comprising at least two flat springs mounted each in a separate plane, said planes lying one above the other and being at least substantially parallel to each other, said flat springs having two ends, said ends being fitted in said frame and in said load support.

5. In a mass and force meter, a frame, a load support, means for parallel and vertical guidance of said load support and substantial load counter-acting, a rigid measuring system with a load cell, a transmission element, made from a resilient material and having one free end, transmitting only the remaining part of the mass or the force to be measured, not counter-acted by said means, directly to said load cell, a lever mounted on said frame connected to said free end of said transmission element, a rod mounted between said lever and said measuring system, said means comprising at least two flat springs mounted each in a separate plane, said planes lying one above the other and being at least substantially parallel to each other, said flat springs having two ends, said ends being fitted in said frame and in said load support.