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:
May. 16, 1995
Filed:
Jan. 24, 1994
Charles D Foran, Jr, Richardson, TX (US);
Charles D Foran, Sr, Richardson, TX (US);
Flowdata, Inc., Richardson, TX (US);
Abstract
A high volume, low RPM, low noise, low wear and long life flowmeter uses inter-engaging double helical four-lobe rotors. The meter is made with ball bearings or bearingless. The double helical nature of the teeth provides no axial loads and no side loads or end loads, and uses true gear designs with very large pockets. A high contact ratio is provided with only four teeth, reducing and eliminating noise and pulsing output, increasing working volume and decreasing speed and wear.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile