Company Filing History:
2 out of 22 
1 out of 832,812 Years Active: 1984-1985
Title: The Innovative Contributions of Paul L Dreyer
Introduction
Paul L Dreyer is a notable inventor based in Allentown, PA, who has made significant contributions to the field of engineering with a focus on sliding blade closure apparatuses. He holds three patents that showcase his innovative approach to solving practical problems in damper technology.
Latest Patents
One of his latest patents is the "Sliding blade closure apparatus with inflatable sealing ring." This invention features a conduit closure apparatus that includes a frame designed for connection to a conduit. The movable blade is mounted in the frame and can be moved back and forth between an open and closed position. An inflatable sealing ring is mounted in the frame, which, when inflated, creates a seal between the blade and the frame. This design includes a mechanism for pulling a vacuum on the interior of the sealing ring, which helps to prevent abrasion and damage during the blade's movement.
Another significant patent is for "Flexible seals for sliding blade dampers." This invention provides an improved seal arrangement around the blade withdrawal aperture. It utilizes two pairs of flexible sealing strips that press against the blade, allowing for easier insertion and reducing the risk of damage to the sealing strips.
Career Highlights
Throughout his career, Paul L Dreyer has worked with various companies, including Ecolaire Incorporated. His work has focused on enhancing the functionality and reliability of damper systems, contributing to advancements in the industry.
Collaborations
Paul has collaborated with notable individuals such as William R McLennan and Russell F Rarick, who have contributed to his projects and innovations.
Conclusion
Paul L Dreyer's inventive spirit and practical solutions have made a lasting impact in the field of engineering. His patents reflect a commitment to innovation and improvement in damper technology.