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.

Date of Patent:
Aug. 17, 1976

Filed:

Feb. 25, 1974
Applicant:
Inventor:

Samuel Serota, Philadelphia, PA (US);

Assignee:

Other;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F16K / ;
U.S. Cl.
CPC ...
137 15 ; 137318 ;
Abstract

An apparatus and method for gaining access to the contents of pressurized vessels and systems and for discharging the contents safely under controlled conditions. The apparatus, comprised essentially of a ball valve and pressure tube assembly having a coaxial conduit in which is mounted for longitudinal movement a rotatable shaft and drill bit, is connected to the pressurized vessel. The rotatable shaft in the preferred embodiment is provided with fluid conducting means so that when communication with the contents of the vessel is made, pressure on both ends of the shaft is equalized. At this point, the ball valve is shut off, the pressure tube assembly, shaft and drill bit are removed, and a hose or other take-off device is connected to the ball valve for safe disposal of the contents of the pressurized vessel.


Find Patent Forward Citations

Serota, Samuel. (1976). Apparatus and method for gaining access to the contents of pressurized (U.S. Patent No. 3974846). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/3974846

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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