Company Filing History:
1 out of 12 
1 out of 832,966 Years Active: 1985
Title: Innovations by John R Bjorkman
Introduction
John R Bjorkman is a notable inventor based in Costa Mesa, California. He has made significant contributions to the field of circuit board technology, holding two patents that showcase his innovative approach to handling and exposing printed circuit boards.
Latest Patents
His latest patents include an "Automatic system for exposing and handling double-sided printed circuit." This invention provides a method for exposing and handling double-sided printed circuit boards without scuffing either side. The system ensures precise positioning of the circuit boards at exposure stations and holds them firmly clamped on a planar stage during exposure. It features a first apparatus to expose one side of each circuit board and a second apparatus for the other side. The design incorporates air-bearing and mechanical-engagement means to float and actuate the circuit boards from one station to another. Additionally, it includes coarse and fine positioning means at each station for accurate locating, followed by vacuum clamping onto the exposure stage. The system also automatically inverts each board as it moves from the first exposure station to the second, ensuring no scuffing occurs during the process.
Another patent by Bjorkman is the "Automatic apparatus and method for exposing, registering, and handling." This invention involves an apparatus and method for automatic handling of circuit boards prior to exposure. It utilizes pins that provide highly accurate location of the circuit board at an exposure station. The pins are designed to be inserted through slots in the circuit board, with at least one slot being perpendicular to the others. Each pin is noncircular, allowing it to be inserted in a rotated position, and then rotated to bind with the slot walls, ensuring precise positioning of the board for exposure.
Career Highlights
Throughout his career, John R Bjorkman has worked with various companies, including Tamarack Scientific Company Inc. His work has significantly impacted the efficiency and accuracy of circuit board handling and exposure processes.
Collaborations
Bjorkman has collaborated with notable individuals in his field, including Ronald E Sheets and George A Barbas. Their combined expertise has contributed to the advancements in circuit board technology.
Conclusion
John R Bjorkman's innovative patents and career achievements highlight his significant contributions to the field of circuit board technology. His work continues to influence the industry, showcasing the importance of innovation in engineering.