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. 31, 1998
Filed:
Oct. 12, 1995
Applicant:
Inventors:
James W Schmitkons, Lorain, OH (US);
Richard P Price, Parma Hts., OH (US);
Assignee:
Nordson Corporation, Westlake, OH (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B08B / ; B08B / ;
U.S. Cl.
CPC ...
124 19 ; 134 221 ; 134 2211 ; 134 30 ; 134 35 ; 134 36 ; 222148 ;
Abstract
A method for purging cured and partially cured material from a mixer employed in a system for dispensing two-component reactive polymeric materials, includes, in one aspect, the introduction of a pulsed flow of a flushing material into the mixer to purge partially cured two-component mixture from the mix and thus delay the onset of plugging of the mixer, and, in a second aspect, includes heating the mixer to a temperature between the application temperature and decomposition temperature of the cured components and then introducing flushing material at high hydraulic pressure to discharge cured material from the mixer.