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:
Sep. 03, 2013
Filed:
May. 11, 2005
Marcus Franciscus Eijkelkamp, Groningen, NL;
Michiel Allan Aurelius Schallig, Drachten, NL;
Marcus Franciscus Eijkelkamp, Groningen, NL;
Michiel Allan Aurelius Schallig, Drachten, NL;
Koninklijke Philips N.V., Eindhoven, NL;
Abstract
The present invention is directed to a reciprocating motor pump () suitable to generate compressed gas with a reduced noise level of at most 55 dB, wherein said pump () includes a pump casing comprising:—a gas inlet nozzle ();—a gas chamber;—a cylinder chamber () comprising a piston ();—an inlet valve ();—an outlet valve (); and—a gas outlet port (); wherein gas enters the gas chamber () through a gas inlet nozzle—() of said gas chamber () and then flows from said gas chamber () to said cylinder chamber () to said cylinder chamber () through an inlet valve () of said cylinder chamber (), whereby the ratio of the diameter of the opening of the gas passage of said inlet nozzle () to the diameter of the opening of the gas passage of said inlet valve () is 1:15 to 1:5.