Shaw's hot air engines patents

Philander Shaw has been an early inventor.

His first working engine built in 1854 had still to know improvements. But very soon in 1861 he built a solid air engine that proved to become a reference.
But his master invention has been his 1869 engine.

Shaw's Air Engines patents

Year Patent Number Comment Title
1854 Shaw patent #10,868 Air Engine
1860 Shaw patent #RE1,014 Reissue of patent #10,868 Improvement in Air Engine
1861 Shaw patent #32,455 Hot Air Engine
1861 Shaw patent #33,497 Improvement in utilizing the exhaust of Caloric Engines
1861 Shaw patent #33,799 Improvement in Hot Air Engines
1869 Shaw patent #90,128 Improvement in Hot Air Engines
1869 Shaw patent #RE3,313 Reissue of patent #90,128 Hot Air Engine