Weighing apparatus
US4151890A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 17, 1977 |
| Grant date | May 1, 1979 |
| Priority date | — |
| Expiry date | Oct 17, 1997 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01G3/08
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
High-speed weighing apparatus in which the weighing platform responds to the pressure of an object thereon to produce an undamped oscillatory vertical motion indicative of the mass of the object on the platform. The platform is supported on a vertically-movable upright column, which in turn is spring-supported on a frame primarily by means of a flexure pivot support arrangement near its bottom end, which provides spring support for the platform and column to permit the vertical motion indicative of weight; it is also supported by another support arrangement operating on an upper portion of the column nearer the platform, for preventing tilting of the column without interfering with its vertical motion or with the weighing process. The second or upper support arrangement preferably comprises a horizontal flexible rod, secured at one end to the frame and at its other end to the upper part of the column.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.