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. 28, 1995
Filed:
Jun. 27, 1994
Richard O Mendez, Carson, CA (US);
Other;
Abstract
Disclosed is a new air shutoff valve for a hopper gun for on/off control of inlet air synchronized to existing on/off control of texture coating mixture. The air shutoff valve comprises a tubular valve stem disposed within the air stem of the hopper gun. The valve stem has an air inlet port proximal a first end and an open second end. A valve control element controls airflow into the hopper gun by selectively obstructing the inlet aperture of the male quick disconnect air fitting. The valve control element comprises a resilient conical frustum-shaped plug disposed partially within the inlet end of the male fitting whereby pressurized air attempting to enter will seat the plug against the inlet aperture to stop airflow. The small end of the plug is fixedly connected to the first end of the valve stem. When the trigger is actuated the plug and first end of the valve stem enter the female quick disconnect air supply fitting mated to the male fitting and the air inlet port moves into the air stream allowing air to flow through the valve stem and air stem for propelling the mixture.