[DOC] [TLE] The Yale Pin-tumbler invention Yale's best-known lock design is the ... [PAR] The pin tumbler lock is a lock mechanism that uses pins of varying lengths to 
prevent the ... The cylinder pin-tumbler lock with the flat key was patented in 1861
. ... wooden lock with pins, the model used by Linus Yale for his invention of the 
Pin... [DOC] [TLE] The History of Yale and Yale locks [PAR] The beginning of Yale locks including the invention of pin tumbler locks. ... He 
specialized in expensive, handmade bank locks. ... perfected and patented his 
father's pin tumbler cylinder lock and became the considered locking expert of his 
time. ... Granted patents in 1861 and 1865, Yale finally succeeded in creating his
... [DOC] [TLE] Linus Yale, Jr. - Wikipedia [PAR] Linus Yale, Jr. (April 4, 1821  December 25, 1868) was an American 
mechanical engineer and manufacturer, best known for his inventions of locks, 
especially the cylinder lock. ... Yale's best-known lock design, the cylinder pin-
tumbler lock, utilized a key-operated lock concept first conceived in ancient Egypt 
over 4,000... [DOC] [TLE] Yale Lock History - Invention of the Yale Lock - The Great Idea Finder [PAR] Jul 18, 2005 ... The cylinder lock perfected by Yale is based on a mechanism first employed by ... 
Patent: Yale patented his cylinder pin-tumbler lock in 1861. [DOC] [TLE] Linus Yale, Jr - American Society of Mechanical Engineers [PAR] Linus Yale, Jr., invented a small cylinder lock with a pin tumbler mechanism and 
... In October 1868, he threw his full weight behind cylinder locks, joining forces... [DOC] [TLE] Linus Yale: Inventor - EnchantedLearning.com [PAR] Yale's father, Linus Yale, had invented an earlier pin-tumbler lock in 1848; the ... 
Yale patented his cylinder pin-tumbler lock in 1861. ... He dies later that year. [DOC] [TLE] Linus Yale | Lemelson-MIT Program [PAR] He opened the Yale Lock Shop in Newport, Rhode Island, in 1847. The younger 
Yale ... Yale patented his cylinder pin-tumbler lock in 1861. Later he perfected... [DOC] [TLE] The History of Locks - Inventors - About.com [PAR] Aug 19, 2016 ... The earliest patent for a double-acting pin tumbler lock was granted to American 
... He designed his padlock using laminated steel. ... engineer and lock 
manufacturer who patented a cylinder pin-tumbler lock in 1861. [DOC] [TLE] Linus Yale Jr - Lockwiki [PAR] Apr 26, 2011 ... 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 ... 
31,278 - Lock (pin-tumbler) - Philadelphia, PA; 14 May 1861 - Pat. [DOC] [TLE] Back Read Description Linus Yale Jr was the son of a locksmith, and ... [PAR] Yale created his first lock in 1851, and named it, with all the flair of a circus ... and, 
he claimed, impervious to attack by gunpowder, concealing the pin-tumbler ... for 
his Cylinder Lock, patents for which were issued to Yale in 1861 and 1865. [DOC] [TLE] Linus Yale and Henry Towne - Lockmakers - Famous Leaders of ... [PAR] American inventor and manufacturer of the cylinder or pin-tumbler lock known by 
his name, which he patented in 1861. Yale gained an expert reputation as a... [DOC] [TLE] Linus Yale, Inventor of The Pin Tumbler Lock | The Color of Hope [PAR] Jul 15, 2015 ... He opened the Yale Lock Shop in Newport, New York and Shelburne, 
Massachusetts, ... Yale patented his cylinder pin-tumbler lock in 1861. [DOC] [TLE] Patent US31278 - Linus yale - Google Patents [PAR] LOCK. Specification of Letters Patent No. 31,278, dated January 29, 1861. ... A is 
the case, B the revolving tumbler or bolt, C is the keeper, D is the back and E is 
the key. ... S the key E is shown in its place, and the stops, or pins o b Z) b and 
c e c c, ...

Question: He patented his cylinder pin-tumbler lock in 1861
Answer: (Linus) Yale