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Pump

Description: Patent for a pump that can be "cleansed of sand and other foreign matter" which may cause an obstruction or interference "with the operation of the pump valve" (lines 13-15).
Date: May 28, 1920
Creator: Johnson, John L.
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Partner: UNT Libraries Government Documents Department

Pump.

Description: Patent for a pump "of the double-cylinder type, in which a continuous and steady stream of water is sucked from the well and forced to the point of use, and in such a pump to provide means for operating the same, whereby the same power will be required to raise the plunger that it does to force the same downward, and to this end providing such improved mechanisms and connections which will evenly distribute the power exerted by the operator to actuate the pump" (lines 9-19).
Date: October 4, 1892
Creator: Smith, Millage Math.
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Partner: UNT Libraries Government Documents Department

Pump-Operating Mechanism.

Description: Patent for a new type of pump operator mechanism with a "novel mounting for the air compressing pump" (lines 18-19) and a more compact form. Illustrations included.
Date: December 18, 1917
Creator: Feagin, Luther W.
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Partner: UNT Libraries Government Documents Department

Pump.

Description: Patent for a new and improved design for pumps as they are used in deep wells. New design meant to prevent sand from entering machine between the working barrel and plunger.
Date: February 1, 1919
Creator: Carmichael, Robert E.
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Partner: UNT Libraries Government Documents Department

Pump.

Description: Patent for improvements to liquid or fluid related pumps. This improvement will allow for a free flow of liquid without getting stuck, sticky, or full of sediment.
Date: October 11, 1919
Creator: Humason, Granville A.
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Partner: UNT Libraries Government Documents Department

Pump

Description: Patent for a pump to be used for pumping oil and water including instructions.
Date: October 23, 1900
Creator: Stukes, John M.
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Partner: UNT Libraries Government Documents Department

Even-Balance Pump-Jack

Description: Patent for "increasing the power of the pump jacks" (lines 10-11) for improved uniformity during the upstroke and the downstroke.
Date: February 4, 1919
Creator: Dayton, William L.
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Partner: UNT Libraries Government Documents Department

Pump.

Description: Patent for a new and useful improvements in pumps.
Date: March 15, 1898
Creator: Mauldin, Alfred W.
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Partner: UNT Libraries Government Documents Department

Pump Controlling Means

Description: Patent for a pump controlling means. This invention applies even pressures on the discharge line. Illustration included.
Date: August 23, 1904
Creator: Small, William
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Partner: UNT Libraries Government Documents Department

Equalizer for Pump Rods

Description: Patent for an equalizer for pump rods. This invention is designed to "assist in elevating the column of water in a pump, is designed to sustain the pump rod in its fixed position" (line 11-14). Illustration included.
Date: June 13, 1911
Creator: Johnson, Robert H.
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Partner: UNT Libraries Government Documents Department

Pump-Operated Device

Description: Patent for "combination with a pump-operating crank-shaft and a walking-beam operatively connected with the pump-rod, means for preventing sudden movements of the pump-rod at the ends of its strokes and for assisting in starting the rod in its reciprocations" (lines 10-15).
Date: May 28, 1901
Creator: Crawford, Charles Buchanan
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Partner: UNT Libraries Government Documents Department

Pump.

Description: Patent for "a pump that is simple, durable, and efiicient, which can be manufactured at a comparatively small cost, and which can be readily cleaned and repaired. It consists, preferably, in a double-cylinder pump that is adapted to operate by a direct lift without a valve in the plunger" (lines 8-15).
Date: September 27, 1892
Creator: Tom, Joseph C.
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Partner: UNT Libraries Government Documents Department

Pump Rod Coupling

Description: Patent for pump rod coupling. This invention is designed to couple adjacent ends of pistons or pumps. Illustration included.
Date: March 19, 1907
Creator: Fletcher, Homer M.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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