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. 03, 1977
Filed:
Dec. 15, 1975
Jack Bryer, Paramus, NJ (US);
Wood Industries, Inc., Middlesex, NJ (US);
Abstract
A variable stroke positive displacement liquid metering pump unit having a rotatable plunger which is moveable in an axial direction within a cylindrical pump casing. The plunger has a flat portion which is adapted to overlie the inlet and outlet ports during different degrees of rotation. A variable stroke drive means is provided to vary the distance the plunger moves outwardly of the casing in a liquid infeed direction to vary the amount of liquid metered. A plurality of pump units are provided in a line across a printing couple with a spur gear mounted on each plunger of each unit to impart rotary motion to the plunger and with adjacent spur gears of adjacent units being connected in a gear train to a common drive means. A rotatable cam shaft common to all pump units is connected to the common drive means and cam rises on the shaft engage a portion of each of the variable drive means to provide axial movement of the plunger in the pump casing.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile