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Class Information
Number: 70/373
Name: Locks > Operating mechanism > Key > Single key > Tumbler type > Cylinder type > Operating elements, parts and adjuncts > Cylinder
Description: Subject matter wherein the salient feature resides in the cylinder structure, per se.










Sub-classes under this class:

Class Number Class Name Patents
70/374 Adjustable 17


Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
8650919 Anti-break lock Feb. 18, 2014
8640515 Bar for connecting the two cylinders halves of a variable-length double cylinder lock Feb. 4, 2014
8505347 Locking device with associated key and blocking rib sensing Aug. 13, 2013
8424349 Key cylinder lock arrangements Apr. 23, 2013
8387424 Method for making a rotating lock for an automotive vehicle Mar. 5, 2013
8347678 Rekeyable lock cylinder assembly Jan. 8, 2013
8336346 High security moving mass lock system Dec. 25, 2012
8166784 Pin assembly cover for a lock mechanism and method of use May. 1, 2012
7987688 Turning knob with lock Aug. 2, 2011
7956741 Tumbler type lock apparatus Jun. 7, 2011
7770424 Cylinder lock device Aug. 10, 2010
7716958 Insert cylinder cabinet cam lock May. 18, 2010
7698916 Lock Apr. 20, 2010
7634929 Cylinder core Dec. 22, 2009
7596975 Lock mechanism Oct. 6, 2009
7530246 Wafer-type tumbler cylinder and key May. 12, 2009
7350382 Turnbuckle lock Apr. 1, 2008
7251970 Cylinder housing arrangement Aug. 7, 2007
7219519 Cylinder housing for auxiliary lock May. 22, 2007
7121127 Lock set with a quick changeability Oct. 17, 2006
6948345 Lock enhancement arrangement Sep. 27, 2005
6810703 Casing structure for a cotter-pin type lock core Nov. 2, 2004
6708539 Lock with removable core Mar. 23, 2004
6595033 Attachment structure for key cylinder Jul. 22, 2003
6532781 Built-in safety device and key for a safety lock Mar. 18, 2003
6202457 Lock core assembly for a cylindrical lock Mar. 20, 2001
6170307 Pick-resistant lock system with improved cylinder construction Jan. 9, 2001
6035673 Sliding door lock with a key removable core Mar. 14, 2000
5966973 Apparatus and method of rebroaching a lock assembly Oct. 19, 1999
5884512 Multi-use lock housing and cylinder Mar. 23, 1999
5697238 Key cylinder Dec. 16, 1997
5626041 Lock cylinder replacement device and method of replacing lock cylinder with lock cylinder replacement device May. 6, 1997
5507163 Interchangeable lock core structure Apr. 16, 1996
5493883 Axial pin tumbler lock Feb. 27, 1996
5479801 Web for a built-in double lock cylinder Jan. 2, 1996
5400629 Axial pin tumbler lock Mar. 28, 1995
5325690 Lock adjustable to operate with different keys Jul. 5, 1994
5295376 Zero clearance lock Mar. 22, 1994
5226304 Universal cylinder modification kit enables lock to have interchangeable care Jul. 13, 1993
5181406 Locking device consisting of key and locking cylinder Jan. 26, 1993
4939916 Lock construction Jul. 10, 1990
4856307 Device for protecting motor-vehicle wheels against theft Aug. 15, 1989
4850210 Lock adjustable to operate with different keys Jul. 25, 1989
4715201 Cylinder lock with removable plug Dec. 29, 1987
4712400 Removable cylinder lock Dec. 15, 1987
4672828 Key-in-knob cylinder replacement system Jun. 16, 1987
4472953 Pin-type lock with axial split cylinder and/or plug Sep. 25, 1984
4444034 Pull-resistant lock core Apr. 24, 1984
4444033 Cylinder assemblies for lock system and method of manufacture Apr. 24, 1984
4395893 Plate tumbler-type cylinder lock mechanism Aug. 2, 1983

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