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:
Aug. 16, 1988
Filed:
Dec. 29, 1986
Ellis M Zacharias, Tulsa, OK (US);
Nusonics, Inc., Tulsa, OK (US);
Abstract
An improved transducer for transmitting and receiving sonic energy, the transducer having a housing with a cylindrical opening, an acoustic end member closing one end of the opening, and providing an acoustic window, a crystal element having one planar surface in engagement with the acoustic end member rearward face, a thrust producing compression screw threadably received in the cylindrical opening, and a spring between the compression screw and crystal element to maintain a substantially steady force of the crystal element against the acoustic end member rearward face. In one embodiment particularly adapting the transducer for sanitary environments the end member includes an integrally formed reflector portion with provision for fluid to flow freely between the sonic window portion and the reflector portion.