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:
Feb. 24, 1976
Filed:
Sep. 27, 1974
John P McCormick, Santa Clara, CA (US);
Other;
Abstract
A tensiometer having a vacuum gauge which is connected to a sensing unit including a ceramic cup, which is located remote from said gauge, by a conductor in the form of a capillary tube. A second capillary bleeder tube communicates with and leads from the ceramic cup and has a second end which is located below the level of the other end of the conducting tube, so that when said second end of the bleeder tube is exposed, the escape of air therefrom can be visually determined, during purging of the device, so that after all air has been removed from the tubes, the tensiometer can be sealed. The end of the conducting tube disposed remote from the ceramic cup is connected to a lower end of a sight glass, to the upper end of which is connected the gauge, so that when air has been removed from the device and the sight glass, tubes and cup are filled with water and sealed, a vacuum will be created in the system as the moisture in the earth surrounding the cup diminishes, to register this reduced moisture condition on the gauge.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile