Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Reexamination Certificate
2006-12-26
2006-12-26
Gray, Linda (Department: 1734)
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
C156S256000, C156S514000, C156S517000, C117S106000, C361S283100, C073S780000
Reexamination Certificate
active
07153383
ABSTRACT:
The invention provides a weight sensor (10) which includes a first electrically conductive sheet (12) electrically isolated from a second electrically conductive sheet (14) by inserts of a closed cell foamed polymeric dielectric (16) and an elastic dielectric (18) in spaces (20) formed between the inserts (16) located between the sheets (12, 14). The sensor (10) also includes capacitive measuring means (24), electrically connected between the first sheet (12) and the second sheet (14), which measures a change of capacitance between the sheets (12, 14) when a vehicle passes over the sheets (12, 14). The sensor (10) further includes converting means (26) for converting the change of capacitance to a number related to a weight of the vehicle.
REFERENCES:
patent: 4137116 (1979-01-01), Miller
patent: 4266263 (1981-05-01), Haberl et al.
patent: 4617078 (1986-10-01), Takahashi et al.
patent: 0756162 (1997-01-01), None
patent: 9418529 (1994-08-01), None
2244 Research Disclosure., No. 277, May 1987, pp. 318-319, XP002023858, Kenneth Mason Publications, Hampshire., GB, ISSN:0374-4353. [Exhibit 4].
PCT International Search Report, Apr. 5, 2002 for Gebert, Rudiger Heinz, PCT/ZA01/00202, “Weight Sensor.” [Exhibit 5].
PCT International Preliminary Examination Report, Aug. 27, 2002, for Gebert, Rudiger Heinz, PCT/ZA01/00202, “Weight Sensor.” [Exhibit 6].
Gray Linda
Hahn and Moodley LLP
Hi-Scan Technology (Pty) Ltd
Moodley Vani
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