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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685,617
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Oct. 29, 1901
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Pump-rod balance
|
Arthur A. Koch |
Montezuma, IA |
The inventor owned Grinnell Mfg. Co. and Vulcan Iron Works (both of them in Iowa) within a few years of when this patent was issued; we do not know if either of those businesses manufactured this water pump. |
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710,871
|
Oct. 07, 1902
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Boring and tenoning machine
|
Arthur A. Koch |
Montezuma, IA |
In 1903 the Koch Mfg. Co. was manufacturing this boring and tenoning machine. That firm moved to Grinnell, IA and reorganized as the Grinnell Mfg. Co. but as far as we can tell the reorganized firm did not make this machine. A 1911 ad for the Vulcan Iron Works of Mason City, IA, shows this machine.
The inventor must have thought highly of this invention as he also obtained British patent 190,300,091 and Canada patent 84,676 for it; this is his only invention—of which he had several—for which he obtained foreign patents. |
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190,300,091
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Jan. 01, 1903
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Drilling and tenoning machine
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Arthur A. Koch |
, England |
Dates on this patents are placeholders as the only information is a mention of a patent application in the 1903-01-10 issue of Timber and Wood-Working Machinery. For what is almost certainly the equivalent US patent see 710,871. |
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84,676
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Jan. 05, 1904
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Boring and tenoning machine
|
Arthur Alfred Koch |
Montezuma, IA |
In 1903 the Koch Mfg. Co. was manufacturing this boring and tenoning machine. That firm moved to Grinnell, IA and reorganized as the Grinnell Mfg. Co. but as far as we can tell the reorganized firm did not make this machine. A 1911 ad for the Vulcan Iron Works of Mason City, IA, shows this machine. |
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946,919
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Jan. 18, 1910
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Corrugated culvert and process of producing same
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Arthur A. Koch |
Albert Lea, MN |
The inventor owned Grinnell Mfg. Co. and Vulcan Iron Works (both of them in Iowa) at the time this patent was issued; we do not know if either of those businesses manufactured this culvert. |
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133,141
|
May. 16, 1911
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Corrugated culvert and process of producing same
|
Arthur A. Koch |
Albert Lea, MN |
This is the Canadian equivalent of US patent 946,919.
The inventor owned Grinnell Mfg. Co. and Vulcan Iron Works (both of them in Iowa) at the time this patent was issued; we do not know if either of those businesses manufactured this culvert. |