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:
Oct. 20, 1987
Filed:
Jun. 30, 1986
Applicant:
Inventor:
Horst Kringe, Netphen, DE;
Assignee:
U.S. Philips Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65B / ;
U.S. Cl.
CPC ...
141 95 ; 141198 ; 7330 / ; 340620 ; 3461 / ; 400470 ;
Abstract
An arrangement for indicating the refilling level of a collapsible ink container (1,2) comprising a measuring circuit having an alternating voltage source (U.about.) to form an electric control signal which depends on the capacitance (8) between the liquid ink and an electrically conductive coating (5) which is insulated with respect to the ink by the wall of the ink container wherein the electrically conductive coating (5) is provided on the outside of the lower part (1) of the ink container.