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. 29, 1978
Filed:
Jun. 10, 1975
Yoshitomo Goshima, Yokohama, JP;
Hiroyuki Hattori, Mitaka, JP;
Shiro Komaba, Kawasaki, JP;
Kazumi Umezawa, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
In an electrostatic copying machine which includes a member for bearing a latent image and a developing device. The developing device includes a member for applying developer liquid to the image bearing member, a container for holding developer liquid, a pump in the container, a supply pipe from the container to the applying member, a return pipe from the applying member to the container, and a filter in the return pipe. The filter has an impinging portion angularly disposed with respect to the flow of developer liquid and disposed above the surface of the developer liquid in the container during pumping and a toner accumulating portion which is immersed in the developer liquid in the container at least when the pump is not operating to soften and dispense any coagulated toner particles accumulated thereon.