Search the Insulator Patent Reference Library:

Total of 71 patents found where: Residence is 'Boston, MA';

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T / S	Patent	Date	Description	Patentee	Category	Assigned To
		1841
U	2,056	April 19, 1841	Improvement in the Mode of Connecting the Rods of Lightning Conductors, Etc. Lightning rod attached to building with a hook clip	STRONG, Justin E.	Lightning Rod
U	2,284	October 9, 1841	Improvement in the Mode of Attaching the Receiving and Discharge Points of Lightning Conductors Lightning rod connectors cast on the ends	ORCUTT, William A.	Lightning Rod Coupling
		1854
U	11,217	July 4, 1854	Improvement in Lightning Rods for Vessels Lightning rod system tied to the ship's masts and grounded to the copper sheathing on the hull	FORBES, Robert B.	Lightning Rod
		1858
U	21,905	October 26, 1858	Improved Method of Insulating and Supporting Lightning Rods Lightning rod with adjustable caps	ROGERS, Elkanah C.	Lightning Rod
		1866
U	51,934	January 9, 1866	Improvement in Telegraph Insulators Hook with improved rubber cap and flared top	ELY, Alfred B.	Hook
U	51,935	January 9, 1866	Improvement in Insulating Telegraph Wires Paraffin and rubber insulated wire	ELY, Alfred B.	Paraffin
U	56,542	July 24, 1866	Improvement in Insulators for Telegraphs Hook to be inserted directly into pole or crossarm	ELY, Alfred B.	Hook
		1869
U	87,187	February 23, 1869	Improved Composition Insulator for Telegraph and other Electric Conductors Composition material of silica, gum shellac etc. molded	MERRICK, JR., John M.	Composition
U	88,066	March 23, 1869	Improved Glass Furnace Improved glass furnace with blower to remove fumes and improve the draught	OAKMAN, Samuel	Furnace
		1870
U	105,834	July 26, 1870	Improvement in Telegraph Insulators Pin hole tapered with grooves to receive wedged, split-end pin	OAKMAN, Samuel	Pin
U	107,303	September 13, 1870	Improvement in Attaching Insulators to Telegraph Poles Threadless insulator mounted on pin via horizontally inserted keeper pin	STEARNS, Joseph B.	Threadless
		1871
U	117,320	July 25, 1871	Improvement in Chimneys Improvement in chimney for glass furnace	OAKMAN, Samuel	Furnace
		1872
U	132,214	October 15, 1872	Improvement in Formers for Segmentally Screw Threaded Insulators Plunger to form segmented threads	OAKMAN, Samuel	Plunger
U	132,215	October 15, 1872	Improvement in Formers for Segmentally Screw Threaded Insulators Plunger to form segmented threads	OAKMAN, Samuel	Plunger
		1878
U	208,487	October 1, 1878	Bottle Stopper Bottle stopper	OAKMAN, Samuel	Bottle
		1883
U	279,289	June 12, 1883	Telegraph and Telephone Line Use of copper wire instead of iron and crossarms between poles to keep the wires separated	VALE, Theodore N.	Miscellaneous
D	13,996	June 19, 1883	Design for an Inkstand Inkstand	GRAY, Lawrence B.	Ink
		1884
U	291,072	January 1, 1884	Press for Molding Glass Insulators Press for making glass insulators to form interior	MURPHY, Edward J.	Press	Lawrence Gray & Joseph Ham
U	306,146	October 7, 1884	Press for Molding Glass Insulators Press for making threads with removable thread forming mandrel	GRAY, Lawrence B.	Press
U	306,147	October 7, 1884	Press for Molding Glass Insulators Press for making threads with removable thread forming mandrel	GRAY, Lawrence B. HAM, Joseph	Press
U	308,778	December 2, 1884	Composition for Making Non-Conducting Handles for Sad-Irons, &c. Mixture of mica and glue to make solid non-conducting composition handles	LEE, Charles Tennant	Composition
		1885
U	324,157	August 11, 1885	Method of Forming Screw Threads on Glass Threads formed in glass (plunger remains in glass during annealing)	PENNYCUICK, James G.	Thread
		1887
U	362,477	May 3, 1887	Electric Police Call Alarm Box Police call alarm box with a key	COUGHLIN, John J.	Alarm Box	3/4 to Hern, Prendergast, Oakman
		1888
U	386,925	July 31, 1888	Electrical Non-Conductor Non-conducting composition material composed of mica and glue used to coat cheese cloth and made in thin sheets, which are then coated with shellac to repel moisture	LEE, Charles Tennant WAITE, Charles N.	Composition	1/2 to The Gould & Watson Co.
U	389,519	September 11, 1888	Composition of Matter Composition material composed of mica and shellac that can be molded (Rick Soller's threaded pin-type specimen)	LEE, Charles Tennant	Composition
		1889
U	402,810	May 7, 1889	Supporting and Cross-Connecting Electric Wires Transposition method using double crossarms with long and short pins	DENVER, William J.	Transposition
U	409,985	August 27, 1889	Composition of Matter Composition material composed of mica and water glass	LEE, Charles Tennant	Composition	1/2 to The Gould & Watson Co.
U	409,986	August 27, 1889	Process of Attaching Composition of Matter to Metal Method of molding the composition material under pressure in metal parts and allowing it to cool to prevent expansion and create a secure attachment to the metal	LEE, Charles Tennant	Composition	1/2 to The Gould & Watson Co.
U	411,384	September 17, 1889	Packing for Steam Pipes Composition material used to coat the outside of pipes to act as an insulator against heat	LEE, Charles Tennant	Composition	1/2 to The Gould & Watson Co.
U	411,749	September 24, 1889	Electric Insulator Support for overhead wires for electric railways made of a block coated inside with composition material	MCCARTHY, Louis	Composition	The Gould & Watson Co. and Charles Tennant Lee
U	413,146	October 15, 1889	Insulator Tree insulator bracket holding wire with two spool type insulator	MCCARTHY, Louis	Tree	Charles Lee & The Gould & Watson Co.
		1890
U	428,979	May 27, 1890	Electric Insulator Blocks coated with composition material to support overhead lines for electric railway	WATSON, George B.	Composition	The Gould & Watson Co.
		1891
U	444,317	January 6, 1891	Electric Wire Insulating Cleat Cleat	POTTER, John S. CARTWRIGHT, David J.	Cleat	John S. Potter
U	448,703	March 24, 1891	Support for Electric Line Wires Hanger insulator for trolley conductor	WIRT, Herbert C.	Hanger
U	462,862	November 10, 1891	Press for Molding Glass Insulators Press for making insulators	GRAY, Lawrence B.	Press
		1892
U	467,941	February 2, 1892	Insulator Strain type	LEE, Charles T.	Strain	1/2 to The Gould & Watson Co.
U	467,942	February 2, 1892	Insulator Suspension type using mica sheets with metal case	LEE, Charles T.	Suspension	1/2 to The Gould & Watson Co.
U	469,940	March 1, 1892	Insulator Knob - self-tying	HAMMOND, Charles N.	Knob
U	477,980	June 28, 1892	Insulator Knob (specimens made by Akron Marble & Toy Mfg. Co.)	WIRT, Herbert C.	Knob	The Thomson-Houston Electric Co.
U	482,872	September 20, 1892	Insulator Strain type	LEE, Charles T.	Strain	The Johns-Pratt Co.
U	485,106	October 25, 1892	Insulator Knob of mica with side groove to hold wire	LEE, Charles T.	Knob	The Johns-Pratt Co.
		1893
U	489,658	January 10, 1893	Strain Insulator Strain type	MCCARTHY, Louis	Strain
U	494,286	March 28, 1893	Apparatus for Protecting Buildings from Lightning System replaces lightning rods by using batteries to put a charge on wires run along the edges of the roof to prevent a lightning strike	BARTLETT, Jonathan B. L.	Lightning Rod
D	22,684	August 8, 1893	Design for an Insulator CD 268.5 top-groove pin type (Dec. 1974 Cross Arm p. 34)	GRAY, Lawrence B.	Pin-type
U	505,123	September 19, 1893	Insulator Pin Pin (wooden) strengthened by metal rod	O'NEILL, James J.	Pin
U	506,002	October 3, 1893	Insulating Support for Metallic Circuits Oil cup insulator to support short crossarm for two insulators	COUSENS, Alfred C.	Oil	Charles Stone
U	511,611	December 26, 1893	Insulator Cleat - self-tying	HAMMOND, Charles N.	Cleat	The Hammond Cleat & Insulator Co.
U	511,612	December 26, 1893	Insulator Cleat - self-tying	HAMMOND, Charles N.	Cleat	The Hammond Cleat & Insulator Co.
		1894
U	514,221	February 6, 1894	Insulator Pin sleeve	GRAY, Lawrence B.	Pin
U	518,301	April 17, 1894	Ceiling Cleat Cleat - 2 piece	WIRT, Herbert C.	Cleat	General Electric Co.
U	522,175	June 26, 1894	Insulator Self-tying with metal cap screws down on two metal ears to hold wire	ANDERSEN, Johan M.	Self-tying Miscellaneous	1/2 to Albert Anderson
U	524,850	August 21, 1894	Insulator Strain and hanger block	HAMMOND, Charles N.	Strain
U	530,706	December 11, 1894	Insulator Composition insulator with clip ears	MCCARTHY, Louis	Composition
		1895
U	539,040	May 14, 1895	Insulator Cleat (ceiling) with metal clip (Electrical Engineer 1-30-1895 and 8-14-1895) It was referred to as the ""Simplest"" cleat and the Ideal cleat.	DESISLES, Leonard H.	Cleat	1/2 to Frederick Palmer
		1896
U	573,101	December 15, 1896	Wall Insulator Slack wire ring driven into mortar between bricks	O'NEILL, James J.	Slack Wire
		1897
U	595,089	December 7, 1897	Third Rail Insulator Third rail insulator with metal protective covering.	ANDERSON, Albert	Third Rail	1/2 to Johan M. Anderson
		1898
D	28,355	March 8, 1898	Design for an Insulator Insulator (composition?) with round end on pin	MCCARTHY, Louis	Misc
D	28,356	March 8, 1898	Design for an Insulator Insulator (composition?) similar to lightning rod ball	MCCARTHY, Louis	Misc
U	605,741	June 14, 1898	Strain Insulator Strain, adjustable insulator of composition & iron (Brown p. 30)	MCCARTHY, Louis	Strain
		1899
U	631,234	August 15, 1899	Cleat for Electric Wiring Cleat	STEVENS, Henry M.	Cleat	1/2 to The Pettingill Andrews Co.
		1901
U	675,615	June 4, 1901	Insulator Third rail insulator with iron mounting bracket and cap to support the rail	ANDERSEN, Johan M. ANDERSEN, Albert	Third Rail
U	684,909	October 22, 1901	Insulating Bushing Bushing	COLE, John A.	Bushing
		1902
U	700,463	May 20, 1902	Insulator for Electric Circuits CD 301, CD 321 & U-938 (Strengthening ribs skirt to petticoat)	WALTHER, William J.	Insulator
U	706,194	August 5, 1902	Insulator Strain composed of a ball of composition material with metal members embedded in the ball	MCCARTHY, Louis	Strain
		1905
U	802,096	October 17, 1905	Tree Insulator Tree hanger	DUNTON, Charles W.	Tree	1/2 to Frank Field
		1907
U	869,403	October 29, 1907	Strain Insulator Strain insulator made of a ball with two loop connectors	ANDERSON, Albert	Strain	Albert & J M Anderson Mfg. Co
U	869,404	October 29, 1907	Strain Insulator Strain insulator made of a ball with two loop connectors	ANDERSON, Albert	Strain	Albert & J M Anderson Mfg. Co
		1908
U	882,979	March 24, 1908	Strain Insulator Wood strain insulator with metal caps on each end and special eye to receive a hook	TERRY, William C.	Strain	The MacAllen Co.
		1909
U	918,905	April 20, 1909	Insulator Clamp type with split ring and lag screw	POND, Benjamin A.	Clamp Type
U	941,032	November 23, 1909	Process of Manufacturing Insulators Press to mold and produce composition strain insulator	MCCARTHY, Louis	Press	The Macallen Co.
		1911
U	1,000,535	August 15, 1911	Insulator Strain, ball with eye-loops on each end	MCCARTHY, Louis	Strain

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