Measuring and testing – Instrument proving or calibrating – Dynamometer
Reexamination Certificate
2006-06-06
2006-06-06
Gibson, Randy W. (Department: 2841)
Measuring and testing
Instrument proving or calibrating
Dynamometer
C073S001150, C073S862627, C073S862628, C073S862634, C180S273000, C177S211000, C177S229000, C280S735000
Reexamination Certificate
active
07055365
ABSTRACT:
A load sensor hardly causing error in weight measurement even when the environmental temperature of the load sensor varies, and a seat weight measuring apparatus using the load sensor. The sensor includes a plurality of strain gauges form a bridge circuit. The strain gauges forming the bridge circuit are attached to the front and back surfaces of a base plate at substantially the same location. Portions of a flexible substrate, on which the strain gauges are formed, are folded and adhered to the back of the sensor plate with adhesive. The bridge circuit formed by the strain gauges compensates for the variation in resistance among the strain gauges generated due to the temperature distribution of the base plate, resulting in little or no variation in output.
REFERENCES:
patent: 4217785 (1980-08-01), Spoor
patent: 4261429 (1981-04-01), Lockery
patent: 4267724 (1981-05-01), Spoor
patent: 4331035 (1982-05-01), Eisele et al.
patent: 4432247 (1984-02-01), Takeno et al.
patent: 4556115 (1985-12-01), Lockery et al.
patent: 4848493 (1989-07-01), Hitchcock
patent: 4898255 (1990-02-01), Gaines
patent: 4903000 (1990-02-01), Yajima et al.
patent: 4979580 (1990-12-01), Lockery
patent: 4993506 (1991-02-01), Angel
patent: 5222398 (1993-06-01), O'Brien
patent: 5289722 (1994-03-01), Walker et al.
patent: 5375474 (1994-12-01), Moore, Sr.
patent: 5404124 (1995-04-01), Ruppin et al.
patent: 5510581 (1996-04-01), Angel
patent: 5512713 (1996-04-01), Naito et al.
patent: 5573269 (1996-11-01), Gentry et al.
patent: 5929390 (1999-07-01), Naito et al.
patent: 6039344 (2000-03-01), Mehney et al.
patent: 6069325 (2000-05-01), Aoki
patent: 6098464 (2000-08-01), Avisse et al.
patent: 6231076 (2001-05-01), Blakesley et al.
patent: 6407350 (2002-06-01), Blakesley
patent: 6431013 (2002-08-01), Nonnenmacher et al.
patent: 6467361 (2002-10-01), Rainey et al.
patent: 6555767 (2003-04-01), Lockery et al.
patent: 6910392 (2005-06-01), Lockery et al.
patent: 2002/0033283 (2002-03-01), Miura et al.
patent: 2002/0190949 (2002-12-01), Hirano et al.
patent: 673 893 (1990-04-01), None
patent: 21 18 305 (1971-11-01), None
patent: 0 962 362 (1999-12-01), None
patent: 0 990 565 (2000-04-01), None
patent: 2000-180255 (2000-06-01), None
patent: 2000-258233 (2000-09-01), None
Foley & Lardner LLP
Gibson Randy W.
Takata Corporation
LandOfFree
Load sensor and seat weight measuring apparatus with a... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Load sensor and seat weight measuring apparatus with a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Load sensor and seat weight measuring apparatus with a... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3646535