Ashton Valve Co. - Assigned Patents

Manufacturers Index - Ashton Valve Co.

Ashton Valve Co.
Boston, MA; Cambridge, MA, U.S.A.
Manufacturer Class: Steam and Gas Engines

Patents

This page contains information on patents issued to this manufacturer.

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Patent Number	Date	Title	Name	City	Description
93,790	Aug. 17, 1869	Improvement in Feed-Water Heaters	Peter C. Wortman	Meadville, Crawford County, PA	This patent's reissue was assigned to the Ashton Valve Company of Hartford, CT.
122,756	Jan. 16, 1872	Improvement in safety-valves	William Camerer	Reading, PA	This patent was subsequently by Henry G. Ashton in patent 291,126.
123,546	Feb. 13, 1872	Improvement in Lock Safety-Valves for Steam-Boilers	Henry G. Ashton	East Cambridge, Middlesex County, MA
6,874	Dec. 12, 1876	Improvements on Railroad Locomotives	Henry George Ashton	Boston, Suffolk County, MA
6,868	Dec. 12, 1876	Improvements on Safety Valves	Henry George Ashton	Boston, Suffolk County, MA
186,783	Jan. 30, 1877	Improvement in Safety-Valve Attachments to Utilize the Escape-Steam	Henry G. Ashton	Boston, MA
197,072	Nov. 13, 1877	Improvement in Safety-Valves	Henry G. Ashton	Boston, MA
		Improvement in Safety-Valves	James E. Maynadier	Boston, MA
197,073	Nov. 13, 1877	Improvement in Safety-Valve Attachments to Utilize the Escape Steam	Henry G. Ashton	Somerville, MA
200,119	Feb. 12, 1878	Improvement in Safety-Valves	Henry G. Ashton	Somerville, MA	This patent covers the "Ashton Pop-Valve". An 1890 lawsuit, Ashton Valve Co. v. Coale Muffler & Safety Valve Co., involved this patent as well as patent 299,503. From the Patent Office report this patent is "for an improvement in safety valves, consisting substantially of an ordinary spring valve with a pop-valve chamber added, in combination with a valve-seat, an inclosed spring chamber, and an inclosed discharge chamber. In his specifications he states that his combination was very important 'in all cases where the steam is prevented in any way from escaping freely from the hood or casing, as is often the case.' In another place he states that he provides holes or vents in the spring chamber for the escape of such steams as may enter it, but these vents are not mentioned in the claims, which cover merely the above combination, 'arranged to operate as described.' Held, that the patent did not cover the use of the vent holes. 50 Fed. Rep. 100, affirmed."
201,862	Apr. 02, 1878	Improvement in Exhaust Mechanisms for Locomotives and Other Steam-Engines	Henry G. Ashton	Somerville, Midlesex County, MA
RE8,211	May. 07, 1878	Improvement in Safety-Valve Attachment to Utilize Escape-Steam	Henry G. Ashton	Boston, MA	Note the witness, George O. G. Coale, who was later involved in the Coale Muffler & Safety Valve Co., and would be sued by Ashton Valve Co. for patent infringement; see the note on patent 200,119.
RE8,216	May. 07, 1878	Improvement in Feed-Water Heaters	Peter C. Wortman	Greenville, Montcalm County, MI
187,802,049	May. 22, 1878	Improvements in Apparatus to be Used on Connection with Locomotive and Other Boilers for Relieving the Same from Pressure Heating, the Feed Water Regulating the Discharge of the Waste Steam, and for Other Like Purposes	Henry G. Ashton	Boston, Middlesex County, MA
		Improvements in Apparatus to be Used on Connection with Locomotive and Other Boilers for Relieving the Same from Pressure Heating, the Feed Water Regulating the Discharge of the Waste Steam, and for Other Like Purposes	William Robert Lake	, England
214,981	May. 06, 1879	Improvement in Safety-Valve Attachments	Henry G. Ashton	Somerville, MA
11,789	Sep. 20, 1880	Improvements on Safety Valves	Henry George Ashton	Somerville, Middlesex County, MA	This is the Canadian equivalent of US patents 291,126 and 301,079.
188,003,849	Sep. 22, 1880	Improvements on Safety Valves	Henry G. Ashton	Somerville, MA	This is the British equivalent of US patents 291,126 and 301,079.
13,446	Oct. 03, 1880	Neuerungen an Sicherheitsventilen fÃ¼r Dampfkessel	Henry George Ashton	Somerville, Middlesex County, MA
13,718	Nov. 19, 1881	Improvements on Safety Valves	Henry George Ashton	Somerville, Middlesex County, MA
13,719	Nov. 19, 1881	Improvements on Safety Valves	Henry George Ashton	Somerville, Middlesex County, MA
291,126	Jan. 01, 1884	Safety-Valve	Henry G. Ashton	Somerville, MA	This invention and its companion, 301,079, were granted several foreign patents including Canada 11,789 and Great Britain 188,003,849. This patent provides an improvement to patent 122,756.
299,503	Jun. 03, 1884	Safety Valves	Henry G. Ashton	Somerville, MA	This patent is an improvement on the Ashton Pop-Valve of patent 200,119, and provides for a muffler to reduce the noise made by escaping steam. A commentary on an 1891 lawsuit claimed that this patent was never used by Ashton Valve Co.
301,079	Jul. 01, 1884	Safety-Valve	Henry G. Ashton	Somerville, MA	Patented in England, 22 Sept., 1880, #3,849; in Belgium, 27 Sept., 1880, #52,656; in Canada, 28 Sept., 1880, #11,789; in France, 29 Sept., 1880, #138,867 and in Germany, 03 Oct., 1880, #13,446. This patent provides improvements to the safety-valve of patent 200,119 and is a companion to patent 291,126.
303,252	Aug. 12, 1884	Safety Valves	Henry G. Ashton	Somerville, MA	Improvements to the safety pop-valve of patent 200,119. See also patents 291,126 and 301,079. British patent 188,003,849 covers the inventions in all three of these patents.
306,208	Oct. 07, 1884	Safety Valves	Henry G. Ashton	Somerville, MA
		Safety Valves	Randall Gould	Boston, MA
395,536	Jan. 01, 1889	Safety-valve	Henry G. Ashton	Somerville, MA	The inventor disclaims patent #'s 90,278, 10,800, 86,346, and GB-187,300,030.
536,693	Apr. 02, 1895	Safety-valve	Randall Gould	Somerville, MA
664,805	Dec. 25, 1900	Pressure-gage-testing apparatus	Charles B. Bosworth	Everett, MA
664,806	Dec. 25, 1900	Testing apparatus for pressure-gages	Charles B. Bosworth	Everett, MA
716,864	Dec. 30, 1902	Safety Valve	Frederick A. Casey	Billerica, Middlesex County, MA	Patented in Canada, patent #84,776.
		Safety Valve	Arthur E. Cutler	Somerville, Midlesex County, MA
84,776	Jan. 12, 1904	Safety Valve	Frederick A. Casey	Billerica, Middlesex County, MA	Patented in the U. S., patent #716,864.
		Safety Valve	Arthur E. Cutler	Somerville, Midlesex County, MA
921,360	May. 11, 1909	Safety-Valve	Frederick Casey	Billerica, Middlesex County, MA
1,063,281	Jun. 03, 1913	Recording-gage	Joseph W. Motherwell	Chicago, Cook County, IL
1,066,079	Jul. 01, 1913	Signal for trains	Frederick Casey	Billerica, MA	Inventor Frederick Casey was deceased. Co-assignees Albert C. Ashton and Mary N. Casey were his executors.
D58,477	Jul. 26, 1921	Design for a pressure-indicating gauge	Charles Gaston	Chicago, IL
1,416,794	May. 23, 1922	Pressure gauge	Arthur E. Cutler	Somervillee, MA
1,480,684	Jan. 15, 1924	Spring Link	William S. Hudson	West Medford, Middlesex County, MA
1,621,738	Mar. 22, 1927	Retard device	Joseph W. Motherwell	Melrose, Middlesex County, MA
		Retard device	Harry S. Baker	Arlington, Middlesex County, MA
1,639,965	Aug. 23, 1927	Alarm gauge	Walter F. Priest	Somerville, MA
1,663,313	Mar. 20, 1928	Adjusting Mechanism for Pressure Gauges	Joseph W. Motherwell	Melrose, Middlesex County, MA
1,734,977	Nov. 12, 1929	Pressure gauge	Joseph W. Motherwell	Melrose, Middlesex County, MA
1,814,092	Jul. 14, 1931	Pressure gauge	Joseph W. Motherwell	Melrose, Middlesex County, MA
1,848,489	Mar. 08, 1932	Pressure gauge	Joseph W. Motherwell	Melrose, Middlesex County, MA
1,915,942	Jun. 27, 1933	Illuminated Gauge	Joseph W. Motherwell	Melrose, Middlesex County, MA
1,933,383	Oct. 31, 1933	Gauge	Joseph W. Motherwell	Melrose, Middlesex County, MA
1,976,938	Oct. 16, 1934	Pressure Gauge	Walter R. Hedeman	Baltimore, MD
2,001,375	May. 14, 1935	Safety Valve	Harry S. Baker	Arlington, Middlesex County, MA
2,034,222	Mar. 17, 1936	Valve	Harry S. Baker	Arlington, Middlesex County, MA
2,040,681	May. 12, 1936	Gauge	Harry S. Baker	Arlington, Middlesex County, MA
D100,838	Aug. 18, 1936	Design for a Combined Gauge and Illumination Housing	Harry S. Baker	Arlington, Middlesex County, MA
		Design for a Combined Gauge and Illumination Housing	Joseph W. Motherwell	Melrose, Middlesex County, MA
2,137,972	Nov. 22, 1938	Illuminated gauge	Harry S. Baker	Arlington, Middlesex County, MA
		Illuminated gauge	Joseph W. Motherwell	Melrose, Middlesex County, MA