Load beam apparatus operative to prevent improper operation...

Details Load beam apparatus operative to prevent improper operation... Load beam apparatus operative to prevent improper operation...

2006-02-21

2006-02-21

Noori, Max (Department: 2855)

Measuring and testing

Specimen stress or strain, or testing by stress or strain...

By loading of specimen

Reexamination Certificate

active

07000484

ABSTRACT:
A beam transducer employs a linear bearing which surrounds the active element of the transducer which is the beam. One end of the bearing is welded to the inactive end of the load beam. The other end of the bearing is not welded, allowing the active end of the beam to move freely. The linear bearing eliminates friction and jamming which will cause inaccurate load measurement, but the ability to allow the active element to move freely with one end free enables the load beam sensitivity to be maximized. The free end is sealed environmentally by employing a flexible metal membrane or diaphragm which is welded between the bearing end and the load beam. This configuration provides a hermetic seal to protect the load beam and the sensitive gages which are placed on the load beam.

REFERENCES:
patent: 3640118 (1972-02-01), Geis
patent: 4735102 (1988-04-01), Koenig
patent: 5311763 (1994-05-01), Gibbs et al.
patent: 5973590 (1999-10-01), Kurtz et al.
patent: 6176139 (2001-01-01), Seils et al.
patent: 6490935 (2002-12-01), Joki et al.
patent: 6561049 (2003-05-01), Akiyama et al.
patent: 6601455 (2003-08-01), Kurtz et al.
patent: 6662645 (2003-12-01), Brewer
patent: 2002/0104380 (2002-08-01), Brewer

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