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.

Date of Patent:
May. 10, 1977

Filed:

Jun. 24, 1975
Applicant:
Inventors:

Frede Hilmar Drostholm, Vedbaek, DK;

Kaj Ditlev Petersen, Valby, DK;

Ulf Raabo, Graested, DK;

Assignee:

Other;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
202160 ; 202176 ; 202202 ; 202206 ; 203-2 ;
Abstract

Equipment is provided having a distillation tank with a heater and a vapor offtake, with a condenser receiving the offtake vapor and delivering liquid condensate. A control system provides safety features including pressure and temperature responsive devices operative to shut off the heater and further including means for shut off of the heater when the tank is being filled. Still further provision is made for shutting off the heater under the influence of a float valve associated with the condensate discharge line and operative to shut off the heater under the influence of rise in level of condensate in the receiving vessel.


Find Patent Forward Citations

Drostholm, Frede. (1977). Equipment for cleaning solvents (U.S. Patent No. 4022669). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4022669

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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