Crystal resonator for QCM measurement of toxic materials

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Description

FIG. 1 is a top plan view of a crystal resonator of a new design;

FIG. 2 is a bottom plan view of the crystal resonator shown in FIG. 1;

FIG. 3 is a left side view of the crystal resonator shown in FIG. 1;

FIG. 4 is a right side view of the crystal resonator shown in FIG. 1;

FIG. 5 is a front elevational view of the crystal resonator shown in FIG. 1;

FIG. 6 is a cross-sectional view taken along line 6—6 of FIG. 1.

FIG. 7 is a cross-sectional view taken along line 7—7 of FIG. 1.

FIG. 8 is a perspective view of the crystal resonator shown in FIG. 1,

FIG. 9 is a perspective view showing the assembling components of the crystal resonator; and,

FIG. 10 is a perspective view showing the assembling components of the crystal resonator.

Claims

The ornamental design for a crystal resonator for QCM measurement of toxic materials, as shown and described.

Referenced Cited
U.S. Patent Documents
3872411 March 1975 Watanabe et al.
3931388 January 6, 1976 Hafner et al.
4124809 November 7, 1978 Engdahl et al.
5436523 July 25, 1995 Staudte
6295861 October 2, 2001 Tom et al.
6525549 February 25, 2003 Poellmann
6798222 September 28, 2004 Tanaka et al.
6987347 January 17, 2006 Yoshio et al.
D526583 August 15, 2006 Wakamatsu et al.
Patent History
Patent number: D540700
Type: Grant
Filed: Aug 30, 2005
Date of Patent: Apr 17, 2007
Assignee: Nihon Dempa Kogyo Co., Ltd. (Tokyo)
Inventor: Shunichi Wakamatsu (Hokkaido)
Primary Examiner: Antoine D. Davis
Attorney: Edwards Angell Palmer & Dodge LLP
Application Number: 29/237,346