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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4,526,000
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Jul. 02, 1985
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Pressure Intensifier
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Albert C. Saurwein |
Auburn, WA |
"In systems requiring high-pressure fluids, for example, water jet cutting or drilling, it is common to use an intensifier that receives fluid, e.g., water, from a low-pressure source and increases the pressure of the fluid to the desire pressure. A typical intensifier will include a low-pressure or working cylinder with a double-acting piston therein, the low-pressure cylinder having opposing high-pressure barrels affixed to it. A high-pressure piston is slidably mounted within each of the high-pressure barrels and the high-pressure pistons are attached to the low-pressure piston such that the high-pressure pistons reciprocate in unison with the reciprocation of the low-pressure piston. A working fluid, such as oil, is alternately pumped into the opposite chambers of the low-pressure cylinder to provide a reciprocal motion of the low-pressure piston and low-pressure water is alternately fed into the opposing high-pressure barrels to be compressed and forced from the cylinder by the high-pressure piston acting in conjunction with the low-pressure piston..." The goal of the patent is to improve on the mechanism of patent 4,029,440 in minimizing the shock at the moment of direction reversal of the high-pressure pistons. |
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4,545,157
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Oct. 08, 1985
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Center feeding water jet/abrasive cutting nozzle assembly
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Albert C. Saurwein |
Auburn, WA |
Assignee McCartney Mfg. Co. was one of the early players in the water-jet cutting machine market. |