Search the Insulator Patent Reference Library:

Build your search criteria. The patent must match all the values specified.
Select patent types: Utility   Design   Reissue
Patent number:
Date:
Year between: and
Patentee starting with:
City:
State:
Assigned To starting with:
Description containing:
Category:
Class:    Subclass:
Click Search when complete:
SELECT DISTINCT patent.*, YEAR(date) as year FROM patent WHERE (category = 'Thread') ORDER BY date ASC, patent, type

Total of 15 patents found where: Category is 'Thread';

View a patent by clicking on the patent number. You can sort by any of the columns by clicking on the column name.

T / S Patent Date Description Patentee Category Assigned To
 1855
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  
 1865
U Specimen known 48,906 July 25, 1865 Improvement in Insulators for Telegraph Wires
Threads formed internally for screw pin (see reissue 3,847 on 2-22-1870)		 CAUVET, Louis A.
 Thread  
 1870
R Specimen known 3,847 February 22, 1870 Improvement in Insulators
Threads formed internally for screw pin (reissue of 48,906)		 CAUVET, Louis A.
 Thread  
U 107,075 September 6, 1870 Improvement in Telegraph Insulators
Threaded screw top (external) for mounting in hole in crossarm or pole		 MCKEE, Samuel
 Thread  
 1878
U 201,544 March 19, 1878 Improvement in Insulators for Telegraph Wires
Threads of segmented internal threads to match segmented pin		 MATTHEWMAN, Joseph
 Thread  
 1881
U Specimen known 247,100 September 13, 1881 Process of Forming Screws in Articles of Glass
Threading process inserts hollow blown glass thimble for threads		 OAKMAN, Samuel
 Thread Edward C. Sherburne
 1884
U Specimen known 304,748 September 9, 1884 Mold for Making Glass Insulators
Threads formed with hinged thread forming tool		 OAKMAN, Samuel
 Thread  
 1885
U Specimen known 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  
 1892
U 482,297 September 6, 1892 Electric Insulator
Threaded externally with saddle groove and square hole		 CLARK, William H.
 Thread  
 1910
U 954,490 April 12, 1910 Machine for Threading Porcelain Insulators
Machine to form threads in wet process porcelain		 YOUNG, George F.
 Thread Pittsburg High Voltage Insulator Co.
 1916
U 1,205,971 November 28, 1916 Electric Insulator
Threads (metallic) or sleeve attached electrolytically		 BUSCHETTI, Claudis
 Thread  
 1922
U Specimen known 1,407,550 February 21, 1922 Method and Machine for Forming Impressions in Plastic Articles
Threading porcelain by gyrating the thread mandrel (""wobbler"" method)		 LAPP, John
 Thread  
 1925
U 1,553,356 September 15, 1925 Machine for Producing Threads or Grooves in Plastic Articles
Threading method whereby mandrel rotates (similar to Lapp wobbler method)		 BENNETT, Cornelius Van Dyke
 Thread The Porcelain Insulator Corp.
 1931
U 1,824,766 September 29, 1931 Insulator
Thread insert of dry process porcelain, split & secured by glazewelding		 BARROW, George M.
 Thread Westinghouse Electric & Mfg. Co.
 1933
U 1,931,626 October 24, 1933 Insulator
Threads molded from cement in finished insulator		 STEVENS, Frank J.
 Thread Locke Insulator Corp.

Total of 0.02 seconds