Load measuring device with a load cell and method for introducin

Details Load measuring device with a load cell and method for introducin Load measuring device with a load cell and method for introducin

1996-03-08

1997-12-30

Gellner, Michael L.

Weighing scales

Self-positioning

177184, 177254, 177255, 177260, 177DIG9, 384 99, 384247, G01G 100, G01G 300

Patent

active

057033340

ABSTRACT:
A load to be measured is transmitted to a load cell, such as a compression load cell, through a double piston, single cylinder load transmitter that has a pressure chamber between two pistons in the single cylinder. One piston bears against the load. The other piston bears against the load cell to form a floating link between the load and the load cell when a sufficient pressure is introduced into said pressure chamber to prevent unwanted, off-center load application force components from adversely affecting any measured results. Preferably, at least one axially outwardly facing end surface of the piston bearing against the load cell has a curved end surface area. A rocker pin with a pressure controllable variable length may be formed by making both axially outwardly facing end surfaces curved. Several load transmitters may be arranged in parallel to transmit larger loads into a load cell.

REFERENCES:
patent: 2488348 (1949-11-01), Ruge
patent: 2775887 (1957-01-01), Hines
patent: 3398996 (1968-08-01), Wucherer
patent: 4137977 (1979-02-01), Alger
patent: 4411327 (1983-10-01), Lockery et al.
patent: 4489797 (1984-12-01), Gordon
patent: 4657411 (1987-04-01), Bath
patent: 4673048 (1987-06-01), Curran
patent: 4716979 (1988-01-01), Bradley et al.
patent: 4804053 (1989-02-01), Nordstrom
patent: 5111702 (1992-05-01), Antkowiak

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