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:
Apr. 25, 1989
Filed:
Jul. 10, 1987
Applicant:
Inventor:
Mary B Heffernan, Encinitas, CA (US);
Assignee:
Hewlett-Packard Company, Palo Alto, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B08B / ;
U.S. Cl.
CPC ...
134 10 ; 134 11 ; 134 12 ; 134 251 ; 134 254 ; 134 39 ; 134 40 ; 134135 ;
Abstract
A process and apparatus (10) are provided for cleaning foam parts used as reservoirs in ink-jet cartridges. Apparatus used in cleaning clean room garments is modified to enable cleaning of thousands of foam parts in a batch mode. The modification includes provided a temperature sensor (60) to ensure that only solvent is distilled over, but not non-volatile residues, and a level sensor (62) to determine if the liquid level in the still (36) is too low and therby reduce power to the heating element (38).