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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2,405,866
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Aug. 13, 1946
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Electrical heating apparatus
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Carl E. Weller |
Easton, PA |
The amateurish patent drawing might mislead you into thinking this is an unimportant patent. But this is the original soldering-gun patent where the soldering tip is also the resistive heating element. The inventor's timing was exquisite: he began manufacturing his invention right at the advent of commercial television which created an enormous demand for electronics manufacture and repair. The inventor's business was enormously successful, made a lot of money, and saved countless hours that would have been spent waiting for the old-style soldering irons to heat up. Weller's invention got the tip to soldering temperature in the time it took to squeeze the trigger and bring the tip to the work. |
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RE23,619
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Feb. 10, 1953
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Electrical heating apparatus
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Carl E. Weller |
Easton, PA |
Reissue of the original soldering-gun patent. The main purpose of the reissues is to emphasize that the soldering tip receives a disproportionate amount of the heat because of its smaller cross-section compared to the secondary windings and the "forward extensions" that form the barrel of the soldering gun. |
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D176,600
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Jan. 10, 1956
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Electric sanding machine
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Sarkis Doctor Acopian |
Easton, PA |
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