Company Filing History:
2 out of 2 
2 out of 61 
1 out of 1 Years Active: 1984-2001
Title: Manuel G Pastor: Innovator in Movable Stage Assemblies
Introduction
Manuel G Pastor is a notable inventor based in Berkeley, CA. He holds a total of 5 patents that showcase his innovative contributions to technology. His work primarily focuses on advanced mechanical systems, particularly in the realm of movable stage assemblies.
Latest Patents
One of his latest patents is the "Epicyclic Stage," which features a movable stage assembly designed for use in a vacuum. This assembly consists of three circular stages that rotate independently. The design includes a base and a large rotatable circular table mounted on it. Within this large table, a smaller circular table is eccentrically mounted and rotates independently. Additionally, a third smaller circular table is eccentrically mounted on the second table, allowing for independent rotation. The tables utilize ferrofluidic seals to prevent air from leaking into the vacuum chamber, and they are driven by motors positioned beneath the tables.
Another significant patent is the "Rolling Element Cage Constraint." This invention comprises a linear bearing assembly that includes sets of guides for rolling elements, such as ball bearings or rollers, constrained within a cage. Typically, two sets of rolling elements and cages are employed between a moving part and a stationary part. Each set features four resilient elements, or springs, that provide a restoring force to ensure the cage tracks correctly. This innovative design minimizes rubbing in the restoring mechanism, enhancing the efficiency of the assembly.
Career Highlights
Throughout his career, Manuel G Pastor has worked with various companies, including Zerpa Industries, Inc. and Etec Systems, Inc. His experience in these organizations has contributed to his expertise in developing advanced mechanical systems.
Collaborations
Manuel has collaborated with notable individuals in his field, including Donald J McCarthy, who is now deceased, and Donald J Mccarthy. These collaborations have likely enriched his work and contributed to his innovative projects.
Conclusion
Manuel G Pastor is a distinguished inventor whose work in movable stage assemblies has made a significant impact in the field of technology. His patents reflect a commitment to innovation and excellence in mechanical design.