US Patent 7428187 Ultrasonic sensor

Patent 7428187 was granted and assigned to Denso on September, 2008 by the United States Patent and Trademark Office.

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Patent Inventor Names

Akira Nakajima0

Hiroyuki Kani0

Tadao Shimizu0

Yasuhiro Kawashima0

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edited on 14 Sep, 2023

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Patent abstract

A structure is used to prevent an ultrasonic sensor from being damaged by a spring member provided for a bezel. A metal spring is fixed in a groove in a bezel. By setting depth of the groove to be larger than thickness of the metal spring, the metal spring is positioned on the inside further than an open end of the bezel. With the configuration, the metal spring is prevented from coming into direct contact with an ultrasonic transducer. Thus, a vibration face of the ultrasonic transducer is prevented from being damaged.

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Official Website

https://pdfpiw.uspto.gov/.piw?Docid=074281870

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