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:
May. 20, 1986
Filed:
Jun. 22, 1984
Takashi Watanabe, Kariya, JP;
Yoshihiro Sasage, Hamana, JP;
Nippondenso Co., Ltd., Kariya, JP;
Abstract
An electro-optical liquid detector assembly comprises a transparent substrate attached at its front surface to a portion of the interior surface of a wind-shield where the exterior surface of the wind-shield is wiped by a wiper blade, a light emission element assembled within the substrate to emit luminous rays towards the wind-shield thereby to cause internal reflection of the luminous rays between the interior and exterior surfaces of the wind-shield, a light receiving element assembled within the substrate to receive the incident luminous rays reflected by the exterior surface of the wind-shield and to produce an electric signal indicative of an amount of the incident luminous rays, a transparent resilient sheet member interposed between the interior surface of the wind-shield and the front surface of the substrate, and a hoder fixedly mounted on a stationary member adjacent the periphery of the interior surface of the wind-shield to support the substrate thereon and press it towards the interior surface of the wind-shield through the resilient sheet member.