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. 24, 1991
Filed:
Apr. 30, 1990
Timothy S Lucas, Glen Allen, VA (US);
Other;
Abstract
A compressor which sweeps a localized region of electromagnetic or ultrasonic energy through a gas at the speed of sound, in order to create and maintain a high pressure acoustic pulse in the gas. The compressions and rarefactions associated with this pulse comprise a pressure cycle, by which a low pressure gas is drawn into a pulse chamber, compressed therein, and then discharged as a high pressure gas. By choosing a sweep velocity equal to the speed of sound in the gas, three independent physical effects are synergistically coupled together. This effect-coupling induces a natural pressure amplification, whereby the pulse's pressure exceeds the sum of the pressures which would result from the individual effects. Operation of the compressor requires no moving parts, other than valves, to come in contact with the gas being compressed and conveyed. Therefore, no oil comes in contact with the gas. This compressor is particularly well suited for refrigeration applications, and provides an efficient oil-less refrigeration compressor.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile