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:
Mar. 19, 2002
Filed:
Jun. 04, 2001
David Allen Murtishaw, Sun City, CA (US);
Michael Gerald King, Poway, CA (US);
David Cataldo, Poway, CA (US);
Other;
Abstract
An improved chemical wash is used to cleanse the interior of an open Cathode Ray Tube (“CRT”) funnel before a coating of a carbon material is applied. The traditional ammonium bifloride wash for CRT funnels can be replaced with an aqueous solution of trisodium phosphate (“TSP”). The TSP solution is preferably sprayed under pressure into the open CRT funnels to cleanse each funnel before the interior coating of carbon material is applied. The TSP solution cleanses the funnels as well as the ammonium bifloride wash previously used, but does not tend to clog the wash sprayers. Moreover, the TSP solution does not need to be treated before it is released as waste and costs significantly less that the previous ammonium bifloride wash.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile