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:
Jun. 29, 1999
Filed:
Dec. 01, 1998
Michael J Fuchs, Rockford, WA (US);
Other;
Abstract
A solenoid switch 10 modified for higher current passage provides a case 20 containing an electromagnetic coil 30 within which slides a cylindrical post 50. A first stage 60 and a second stage 80, stacked on an open end of the case, each include electrically conductive disks which alternate between electrically conductive states, wherein electrical current is transported between opposed electrical conductors 40, and a nonconductive state wherein an open circuit exists between the conductors 40. An air inlet 82 and associated air outlet 83 allow the use of compressed air to cool the conductive disks. An optional third stage 100 provides a further conductive disk which further reduces electrical resistance and heat production.