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:
Dec. 28, 1993
Filed:
Feb. 14, 1992
Robert E Romanchik, Allentown, PA (US);
Marvyn L Souders, Orefield, PA (US);
Fuller Company, Bethlehem, PA (US);
Abstract
A control valve for a particulate material blender which permits either blending or bypassing with pressurized gas or discharging the material without pressurized gas, but prevents undesirable interconnections. A cylindrical body with four access ports spaced around the body has a rotor with connecting passages within the body. In one embodiment, the rotor interconnects either the gas entry port to the blender port alone, the gas entry port to the blender and bypass ports, or the blender port to the discharge port as it rotates into one of its three positions. A suitable rotation means, for example, two rotary actuators, are used to secure the three positions of the valve, while preventing any other rotational positions.