Search the Insulator Patent Reference Library:

Total of 58 patents found where: Residence is 'Philadelphia, PA';

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T / S	Patent	Date	Description	Patentee	Category	Assigned To
		Battery
U	114,911	May 16, 1871	Improvement in Galvanic Batteries Use of paraffin or paraffinic oil to coat surface of battery acid to prevent evaporation	BROOKS, David	Battery
U	438,532	October 14, 1890	Insulating Appliance for Electric Batteries Battery jar and large battery rest insulator with upturned cup to hold insulating fluid. Some think the rods (a2) that hold the plates apart are the glass U-shaped ""rods"" known in the hobby, but there is no evidence of this in the patent.	CURRIE, Stanley C. C.	Battery	The United Gas Improvement Co.
U	1,181,362	May 2, 1916	Insulating Support for Storage Batteries Battery insulator support cup made of earthenware (see 1,146,298)	AMBRUSTER, Cornelius	Battery
		Bracket
U	444,466	January 13, 1891	Electric Lamp Bracket Bracket for two insulators and support for a street light	SMITH, Thomas Carpenter	Bracket
U	1,271,596	July 9, 1918	Insulator Support Bracket for knobs	MAYER, Walter S.	Bracket	Electric Service Supplies Co.
		Cable
U	165,535	July 13, 1875	Improvement in Underground Telegraph Lines Underground cable insulated by wrapping with cotton, hemp, or jute and saturating it with paraffin.	BROOKS, David	Cable
U	199,506	January 22, 1878	Improvement in Insulating Underground Telegraph Wires Underground cable insulated by wrapping with cotton, hemp, or jute and saturating it with paraffin and inserting the wires in heated metal pipes flushed with air to remove moisture.	BROOKS, David	Cable
		Clamp Type
U	466,726	January 5, 1892	Insulator Clamp type split knob with lag screw	NORGRAVE, George B.	Clamp Type	Richard I. Brewster
		Cleat
U	254,610	March 7, 1882	Insulator for Telegraph Wires Cleat - self-tying by means of two insulating blocks	CAPEWELL, William H.	Cleat
		Engraving
U	108,408	October 18, 1870	Improvement in Cutting and Engraving Stone, Metal, Glass &c. Method of sandblashing to cut or engrave	TILGHMAN, Benjamin C.	Engraving
		Hanger
U	383,097	May 22, 1888	Support for Electric Wires Hanger for electric cable	BROOKS, JR., David	Hanger	The Electric Cable Const. & Maint. Co.
		Hook
U	45,221	November 29, 1864	Improvement in Insulators for Telegraph Wires Hook cemented in glass with metal covering (see reissue 2,717 on 8-6-1867)	BROOKS, David	Hook
U	63,206	March 26, 1867	Improvement in Insulators for Telegraph Wires Hook encased in metal or wood allows arcing to ground	BROOKS, David	Hook
R	2,717	August 6, 1867	Improvement in Insulators for Telegraph Wires Hook cemented in glass & metal case with sulfur (reissue of 45,221)	BROOKS, David	Hook
U	69,622	October 8, 1867	Improvement in Insulators for Telegraphs Hook in blown glass cemented with sulfur in metal case	BROOKS, David	Hook
U	103,122	May 17, 1870	Improvement in Insulators for Telegraphic Wire Hook with metallic oxide cement to hold hook or pin	BAKER, Robert B.	Hook
U	105,656	July 26, 1870	Improvement in Cramp Hook for Telegraphic Wire Insulators Hook with one prong opposite other (assigned to Brooks)	DECHANT, William H.	Hook	David Brooks
U	200,124	February 12, 1878	Improvement in Telegraph Insulators Hook in glass held in crossarm by pin (Brooks & La Bastie)	BROOKS, David	Hook
		Insulator
U	557,881	April 7, 1896	Insulator CD 134.6 bail wire system double-groove insulator (Cosner specimen)	RAPPLEYE, Hannibal W.	Insulator
		Jar
U	98,270	December 28, 1869	Improvement in Machine for Grinding Glass Jars Use of adjustable arms to grind the mouth of glass jars	KELLY, Alexander W. SAMUEL, John B.	Jar
		Knob
U	526,472	September 25, 1894	Insulator for Electric Conductors Knob - self-tying	WEBSTER, George	Knob	1/2 to Arthur Ingraham & Samuel Brown
U	879,033	February 11, 1908	Insulators for Electric Wires Knob	CALDWELL, John	Knob
U	1,213,011	January 16, 1917	Device for Connecting Outside Wires to Buildings Odd cylindrical knob with off-center screw hole and external grooves for attaching wires to buildings (see reissue 14,312 on 6-5-1917) [Angle Insulator Co.]	RAGOTZKY, Philip C.	Knob
R	14,312	June 5, 1917	Device for Connecting Outside Wires to Buildings Odd cylindrical knob with off-set screw hole and external grooves for attaching wires to buildings (reissue of 1,213,011) [Angle Insulator Co.]	RAGOTZKY, Philip C.	Knob
		Lightning Rod
U	18,963	December 29, 1857	Improved Device for Attaching Lightning Rods Lightning rod made of corrugated copper sheets and attached with iron spikes	ELLIOTT, J. B.	Lightning Rod
U	70,741	November 12, 1867	Improvement in Lightning Conductors Lightning rod with braided copper wire as connecting joints that can be easily turned as desired	PIKE, William G.	Lightning Rod
U	90,949	June 8, 1869	Improvement in Lightning Rods Lightning rod made of two long strips of metal rivited together and twisted	KINSEY, Theodore T.	Lightning Rod
U	92,551	July 13, 1869	Improvement in Lightning Rods Star shaped lightning rod made of 4-edged angle iron with a sheet of copper pressed over the outer surface and then twisted (see reissue 8,429)	VERMILYA, Leland D. REYBURN, William S. HUNTER, Edmund A. W.	Lightning Rod
U	94,773	September 14, 1869	Improvement in Lightning Rods Lightning rod made of sheet metal and formed into star shape with four projections	REYBURN, William S. MARTIN, F. J.	Lightning Rod
U	96,268	October 26, 1869	Improvement in Lightning Rods Improvement of 92,551 by using a sheet zinc core with sheet copper covering to make a star shaped lightning rod	REYBURN, William S. MARTIN, F. J.	Lightning Rod
U	124,264	March 5, 1872	Improvement in Lightning Rods Lightning rod made by fastening two metal strips together by indentation, opening to form a star shape, and twising	GOODWIN, Frederick O.	Lightning Rod	1/2 to Frank Goodwin
U	160,151	February 23, 1875	Improvement in Lightning Rods Lightning rod with horseshoe steel magnets for points and wrapped with zinc wire	BRYAN, James Chapman	Lightning Rod
U	160,154	February 23, 1875	Improvement in Lightning Rods Lightning rod with nickel steel magnets pointed north and south and batteries	BRYAN, James Chapman	Lightning Rod
U	163,807	May 25, 1875	Improvement in Lightning Rod Standards Lightning rod stand with three legs	REYBURN, William S. MARTIN, Frederick J.	Lightning Rod
R	8,429	September 24, 1878	Improvement in Lightning Rods Star shaped lightning rod made of 4-edged angle iron with a sheet of copper pressed over the outer surface and then twisted (see 92,551)	VERMILYA, Leland D. REYBURN, William S. HUNTER, Edmund A. W.	Lightning Rod	Rights of Vermilya to Reyburn, Hunter, and Byron P. Moulton
		Lightning Rod Coupling
U	90,578	May 25, 1869	Improvement in Lightning Rod Couplings Coupling for lightning rods where the ends can be screwed together (see reissue 8,304)	REYBURN, William S. HUNTER, Edmund A. W.	Lightning Rod Coupling
U	186,877	January 30, 1877	Improvement in Lightning Rod Couplings Coupling made with square socket that is crimped over end of lightning rod and has threaded bolt end to screw into next section	REYBURN, William S. MARTIN, Frederick J.	Lightning Rod Coupling
R	8,304	June 25, 1878	Improvement in Couplings for Lightning Rods Coupling for lightning rods where the ends can be screwed together (see 90,578)	REYBURN, William S. HUNTER, Edmund A. W.	Lightning Rod Coupling	1/2 of Hunter's right to Byron P. Moulton
U	266,075	October 17, 1882	Lightning Rod Joint or Coupling Internal coupling for hollow lightning rods that can be pinned to the rod	BALL, Charles E.	Lightning Rod Coupling
		Miscellaneous
U	1,040,971	October 8, 1912	Insulating Joint miscellaneous - insulating joint	WIRT, Charles	Miscellaneous	Wirt Electric Specialty
		Pin
U	775,812	November 22, 1904	Insulator Support Pin design made from sheet metal with partial threads on one side	FAIRBANKS, Ernest Hayward	Pin
U	1,184,963	May 30, 1916	Insulator Pin Pin, metal with circular groove to receive threaded wooden pin	KENNEDY, Matthew G.	Pin
		Press
U	310,484	January 6, 1885	Press for the Manufacture of Insulators and other Glass Articles Press for making insulators	WEYMAN, George W.	Press	1/2 to Charles T. Weyman
		Radio
U	2,444,938	July 13, 1948	Insulator Radio antennae insulator with center hole for nail and side slits to hold the antennae wire	MARTIN, JR., Albert D.	Radio
		Self-tying Miscellaneous
U	274,821	March 27, 1883	Electric Wire Insulator Self-tying miscellaneous	REIFF, William H.	Self-tying Miscellaneous	1/3 to Andrew Siep, Jr.
U	293,901	February 19, 1884	Lock Wire Insulator Self-tying with slotted crown (Electrical World 10-18-1884)	MCGRORY, Thomas	Self-tying Miscellaneous
		Self-tying Screw Top
U	315,660	April 14, 1885	Supporting Insulator for Telegraph Wires Self-tying screw top (see 1,305,168)	PRENZEL, Henry	Self-tying Screw Top
U	759,276	May 10, 1904	Insulator for Telegraph Wires Self-tying screw top	HOBERT, Clayton	Self-tying Screw Top
		Self-tying Slot Top
U	323,055	July 28, 1885	Insulator Self-tying slot top with projections to bend wire	MCGRORY, Thomas	Self-tying Slot Top
U	711,629	October 21, 1902	Insulator Self-tying slot top with wedge keeper	HOBERT, Clayton	Self-tying Slot Top	7/10 to S. Miller & E. Kerper
		Self-tying Twist
U	1,059,629	April 22, 1913	Insulator Self-tying twist lock type	PLATT, Thomas M.	Self-tying Twist
		Slotted
U	328,728	October 20, 1885	Insulator Slotted tubular insulator for crossovers	SMITH, Leonard O.	Slotted
		Split
U	419,642	January 21, 1890	Insulator for Electric Wires Split ring with split ring holder and lag screw	CORNOG, Isaac P.	Split
		Stool
U	1,786,458	December 30, 1930	Insulating Nontilting Stool Insulated stool composed of multiple plies of hardwood with extended legs. Pintype insulators are used to support the legs and insulate the stool.	SHIPMAN, Emanuel F.	Stool
		Strain
D	46,243	August 11, 1914	Design for an Insulator Strain	BUNDY, Clifton L.	Strain
		Thread
U	13,402	August 7, 1855	Forming Screw Threads, etc., in the Necks of Glass Bottles and Similar Articles Threads formed internally in necks of bottles and insulators	STONE, Amasa	Thread
		Tie Wire
U	394,380	December 11, 1888	Wire Holder for Insulators Tie wire standard method	LLOYD, Edwin L.	Tie Wire
U	475,781	May 31, 1892	Electric Wire Holder Tie wire made of a loop of wire with pre-formed loops on the ends to connect together and curved to interlock with the line wire	LLOYD, Edwin L.	Tie Wire

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