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ASHRAE Membership

ASHRAE membership is open to any person associated with heating, ventilation, air conditioning or refrigeration. ASHRAE is unique because its membership is drawn from a wide range of disciplines relating to the HVAC&R field. Over 56,000 individuals from more than 100 nations belong to the Society.

Discounts on Publications

ASHRAE members earn 15% off publications. Hundreds of titles are available including the complete collection of ASHRAE Standards including 90.1, 62.1 and 189.1.

Develop Leadership Skills

When you join ASHRAE, you are making an investment in yourself. When you become active in the Society by giving your time and sharing your knowledge, you get even more out of that investment.

Network with Industry Professionals

Each month, all over the world, ASHRAE chapters convene for an informational program featuring a speaker or topic that is key to professionals in the industry. Meet with your peers and share ideas.
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Resources & Publications

Air-Conditioning and Refrigerating Patents

 Many thousands of patents for refrigeration and air conditioning devices have been issued in the US since the early 1800's, but up to now there was no searchable list of these patents in one place.

ASHRAE Presidential Member Glenn Muffley spent most of his engineering career creating such a list, only to have his work discarded after his death. ASHRAE's Historical Committee decided to attempt to recreate the listing, expanding it to include air conditioning patents as well. This work took about ten years, and the result is being posted on ASHRAE's Web Site for the use of ASHRAE Members and researchers of industry history.

The list, in chronological order, is being posted in Adobe Acrobat format and is easily searchable by inventor or company name, title, etc. The listing covers patents issued from the early 1800's through the 1940's. Although the list does not have every AC&R Patent, it does have most of them up to the 1930's. (It can be difficult to find every patent because the US Patent Office files patents under many different classifications.)

Refrigeration and Air-Conditioning Patents, Part 1
Refrigeration and Air-Conditioning Patents, Part 2

Actual copies of all of the patents in the list can be accessed at the ASHRAE library in Atlanta. Many Libraries have microfilmed copies of US Patents and copies can be obtained directly from The US Patent Office.

An example of the information contained in the list is illustrated by the following entry for the basic patent issued covering the manufacture of the CFC refrigerants:

1,930,129 Thomas Midgley, Jr. Worthington, OH
Albert L. Henne
Robert R. McNary
Columbus, OH
Dayton, OH
Assignors to: Frigidaire Corporation Dayton, OH
Corporation of, DE
October 10, 1933
Application filed: April 5, 1930

Manufacture of aliphatic fluoro compounds