Linus Yale Jr

=Linus Yale, Jr.=



Linus Yale, Jr. (04 April 1821, 25 December 1868) was an American inventor and manufacturer of locks. His most famous inventions are the modern rotary combination lock and modifications to his father's pin-tumbler lock mechanism, currently one of the most popular lock designs worldwide.

Life
Linus Yale, Jr. was born in Salisbury, New York. Yale Jr joined his father, Linus Yale, Sr., at his lock business in 1850. He introduced some combination safe and key-operated cylinder locks around 1862. His 1865 patent (48,475) for a pin-tumbler lock and key was a drastic improvment over previous models, and is the basis for pin-tumbler locks since. In 1868, he and Henry Robinson Towne founded the Yale Lock Manufacturing Company in Stamford, Connecticut to produce cylinder locks. Yale Jr. died later that year due to heart failure.

Patents

 * 06 May 1851 - Pat. US8071A - Lock and key (lever) - Newport, NY
 * 19 Oct. 1852 - Pat. US9350 - Burglar-proof plates - Newport, NY
 * 21 Dec. 1852 - Pat. US9497 - Safety lock - Newport, NY
 * 12 July 1853 - Pat. US9850 - Bank lock (lever) - Newport, NY
 * 03 June 1856 - Pat. US15031 - Lock (lever) - Newport, NY
 * 19 Oct. 1858 - Pat. US21861 - Adjustable Square - Philadelphia, PA
 * 09 Nov. 1858 - Pat. US22048 - Lock (lever) - Philadelphia, PA
 * 12 June 1860 - Pat. US28710 - Lock - Philadelphia, PA
 * 29 Jan. 1861 - Pat. US31278 - Lock (pin-tumbler) - Philadelphia, PA
 * 14 May 1861 - Pat. US32331A - Lock - Philadelphia, PA
 * 27 June 1865 - Pat. 48,475 - Lock (pin-tumbler) - Shelburne Falls, MA
 * 27 June 1865 - Pat. 48,476 - Screw tap reversal apparatus - Shelburne Falls, MA
 * 06 Feb. 1866 - Pat. 52,484 - Burglar-proof safe - Shelburne Falls, MA
 * 19 Nov. 1867 - Pat. 71,110 - Burglar-proof safe - Shelburne Falls, MA
 * 07 Jan. 1868 - Pat. 73,152 - Vise - Cooperstown, NY
 * 04 Feb. 1868 - Pat. 74,025 - Vise - Shelburne Falls, MA
 * 15 Sep. 1868 - Pat. 82,192 - Permutation lock - Shelburne Falls, MA
 * 04 Jan. 1870 - Pat. 98,536 - Permutation lock - Shelburne Falls, MA
 * 19 Sep. 1871 - Pat. 119,212 - Post-Office lock (pin-tumbler) - Shelburne Falls, MA
 * 24 Oct. 1871 - Pat. 120,177 - Post-Office lock (pin-tumbler) - Shelburne Falls, MA