Location History:
- State College, PA (US) (1988 - 1991)
- Kingsport, TN (US) (2004)
Company Filing History:
2 out of 23 
1 out of 832,718 Years Active: 1988-2004
Title: Innovations of Frederick E Coffman
Introduction
Frederick E Coffman is an accomplished inventor based in State College, PA (US). He holds three patents that showcase his innovative contributions to various fields. His work primarily focuses on improving efficiency and functionality in domestic water systems and chemical treatment processes.
Latest Patents
One of Coffman's notable patents is the "Domestic hot water distribution and resource conservation system." This invention provides a domestic water distribution system that continuously delivers heated water to one or more hot water faucets. The system utilizes a convective return loop from the desired faucets, regulated by a flow control device. This control device allows for unhindered flow during circulation while preventing reverse flow when a faucet is opened. It features an easily accessible handwheel adjustment for selecting three modes of operation: HELD-ON, HELD-OFF, and NORMAL-OPERATION. The first two modes are particularly useful for filling and flushing the system during new installations and recreational vehicles. Additionally, a lighter-than-water checking element enables the system to function in single-level plumbing installations without the need for inclined supply and return routing. The plumbing return and cold water supply are connected to the base of the water heater, creating a flushing action that minimizes sediment accumulation and limits heat loss.
Another significant patent is the "Process and apparatus for treating articles of substantial thickness." This invention provides a method and apparatus for chemically treating articles with a corrosive liquid treatment fluid while they are delivered through a substantially closed chamber. During treatment, the articles pass through a nip formed between opposed rollers, with at least one roller being rotatably driven. Due to the thickness of the articles, at least one roller must be moved away from the other to allow passage. The driven roller remains positively driven as it moves away from the nip and continues to operate until the nip is closed again.
Career Highlights
Coffman has worked with Chemcut Corporation, where he contributed to advancements in chemical treatment processes. His experience in the industry has allowed him to develop innovative solutions that address practical challenges.
Collaborations
Coffman has collaborated with notable individuals such as G Allen Blakeslee and Charles H Pelton, enhancing his work through shared expertise and insights.
Conclusion
Frederick E Coffman's innovative patents reflect his commitment to improving domestic water systems and chemical treatment processes. His contributions have made a significant impact in these fields
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