If you find a patent number or patent date by this manufacturer that is not on this
list, please contact the Site Historian.
Key to Links for Patent Information
USPTO = U.S. Patent Office .
Images of the actual patent can be viewed on the U.S. Patent Office web site but
a special TIFF viewer must be installed with your browser in order properly work.
More information on how to configure your computer to view these patents can be
found at TIFF image Viewers
for Patent Images.
DATAMP = Directory of American Tool And
Machinery Patents . A sister site to VintageMachinery.org with information
on patents related to machinery and tools. A much easier user interface than the
USPTO's for finding information on machinery patents.
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51,037
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Nov. 21, 1865
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Governor Valve
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Robert W. Gardner |
Quincy, Adams County, IL |
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182,816
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Oct. 03, 1876
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Governors for Steam Engines
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Robert W. Gardner |
Quincy, Adams County, IL |
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287,822
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Nov. 06, 1883
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Governor
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Robert W. Gardner |
Quincy, IL |
See also patent 300,705. |
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300,705
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Jun. 17, 1884
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Governor
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Robert W. Gardner |
Quincy, IL |
Improvements to patent 287,822. |
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Governor
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John W. Gardner |
Quincy, IL |
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1,450,032
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Mar. 27, 1923
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Compressor mechanism
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John Willis Gardner |
Quincy, IL |
This patent date was seen on a Gardner "Junior" air compressor. The assignee was established in 1859 to manufacture Robert W. Gardner's flyball governor; this patent's inventor was the son of the company founder and had been president of the company since 1905. In 1926, Gardner Governor merged with the Denver Rock Drill Co. to create the Gardner Denver Co. |
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1,582,976
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May. 04, 1926
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Valve Mechanism
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John W. Gardner |
Quincy, Adams County, IL |
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