Novel glass elements for use in balances

Details Novel glass elements for use in balances Novel glass elements for use in balances

1988-07-08

1989-06-06

Miller, Jr., George H.

Weighing scales

Self-positioning

Electrical current generating or modifying

177211, 7386264, G01G 314, G01L 122

Patent

active

048363146

ABSTRACT:
Improved shaped glass elements having very low thermal coefficients of elastic modulus are provided for use as measuring means in balances for determining the mass of objects with a high degree of resolution. A particularly preferred form of the invention id fabricated from a glass consisting of 60.6% SiO.sub.2, 14.7% B.sub.2 O.sub.3, 8.94% Al.sub.2 O.sub.3, 4.72% Na.sub.2 O and 10.98% BaO, by weight.

REFERENCES:
patent: 2392314 (1946-01-01), Dalton
patent: 3926271 (1975-12-01), Patashnick
patent: 3950987 (1976-04-01), Slezinger et al.
U.S. Postnikov et al., Izv. Akad. Naukd. SSSR, Neorg. Matr., 7 (3), pp. 485-489, (1971), "Temperature Dependence of the Shear Modulus and Attenuation of Ultrasound in Silicate Glasses".

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