Spring devices – Fluid – Expansible-contractible chamber device
Patent
1975-04-14
1976-09-28
Marbert, James B.
Spring devices
Fluid
Expansible-contractible chamber device
177157, 177184, G01G 2302, G01G 2110
Patent
active
039827380
ABSTRACT:
The dash-pot connected to the balance beam of a portable balance is sealed about the piston rod of the dash-pot by a rubber ring mounted in the cover of the dash-pot and resiliently deformed when an abutment leg projecting from the balance housing is lifted from a supporting surface. The dash-pot arrangement is held thereafter automatically in the locked position, thereby also immobilizing the balance beam, by a spring-loaded detent until the detent is manually released.
REFERENCES:
patent: 3160007 (1964-12-01), Tate et al.
patent: 3876017 (1975-04-01), Ziefle
Ellner Milan
Meier Eugen
Berman Hans
Kelman Kurt
Marbert James B.
Mettler Instrumente AG
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