The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 08, 1987
Filed:
Apr. 08, 1986
Jacob Y Wong, Santa Barbara, CA (US);
Pierre Khuri-Yakub, Palo Alto, CA (US);
M Ed Motamedi, Thousand Oaks, CA (US);
Marcus Y Wong, Pacific Palisades, CA (US);
Adamtek Corporation, Santa Barbara, CA (US);
Hibshman Corporation, San Luis Obispo, CA (US);
Abstract
The device electronically measures fluid viscosity and temperature simultaneously principally for determining the changes in the properties of cervical mucus at the onset of ovulation. Interdigital transducers are used to generate and detect surface and bulk acoustic waves on one side of a slab of fused quartz. The change of phase of surface acoustic waves and the change in amplitude of doubly-reflected bulk acoustic waves are used to detect respectively the temperature and viscosity of fluid sample deposited on the opposite face of the slab.