This inventor holds 1 USPTO granted patent. Top assignee: F.m.e. Corporation. Active years: 1987.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 1987
Title: John V. McDonald and the Postage Meter Stepper Motor Module.
Introduction
John V. McDonald is an inventor associated with El Cerrito, California. His patent work includes a mechanism designed to control the selected value printed by a postage meter.
Latest Patents
McDonald’s listed patent, “Postage Meter Stepper Motor Module,” describes a stepper-motor assembly for a postage meter with a rotatable main shaft and a printhead. Value rods mounted on the shaft connect to the printhead, and moving a rod along the shaft changes the selected value character.
The module uses a frame-mounted stepper motor and a yoke connected to a value rod through a coupler ring. This arrangement lets the rod rotate freely while keeping it at the axial position set by the motor. A rack-and-pinion mechanism converts the motor’s rotary motion into the yoke’s linear movement. McDonald is credited with 1 patent.
Career Highlights
McDonald is associated with F.M.E. Corporation. His documented patent contribution concerns a mechanical control system for selecting printed values in postage-meter equipment.
Collaborations
Ward J. Payn and Daniel P. Leonard are identified as McDonald’s coworkers. The available information does not specify their roles in the patent.
Conclusion
John V. McDonald’s patent describes a stepper-motor module that translates rotary motion into precise linear positioning, enabling a postage meter to select its printed value.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile