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:
Aug. 14, 2007
Filed:
Apr. 27, 2001
Applicants:
Richard H. Morrison, Jr., Taunton, MA (US);
Nicol E. Mcgruer, Dover, MA (US);
Jeffrey A. Hopwood, Needham, MA (US);
Inventors:
Richard H. Morrison, Jr., Taunton, MA (US);
Nicol E. McGruer, Dover, MA (US);
Jeffrey A. Hopwood, Needham, MA (US);
Assignee:
Northeastern University, Boston, MA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01H 51/22 (2006.01);
U.S. Cl.
CPC ...
Abstract
Processes for preparing contacts on microswitches have been invented. The first is a wet process, involving the use of one or more acids, bases and peroxides, in some formulations diluted in water, to flush the contacts. The second process involves exposing the contacts to plasmas of various gases, including (1) oxygen, (2) a mixture of carbon tetrafluoride and oxygen, or (3) argon.