7/2/2023 0 Comments Schlage master key generator![]() ![]() With the tops of the bottom pins 20 a aligned with the shear line 24, the key 15 and the plug 13 can be turned. When a proper key 15 is inserted into the cylinder 10, the bitting depth of the cuts 16 brings the top of each of the bottom pins 20 a exactly to the surface of the plug 13, forming a shear line 24, as shown in FIG. The top pins 20 b are then partially in the shell 12 and partially in the plug 13, forming an obstacle that keep the plug 13 from turning, as shown in FIG. With no key 15 inserted in the cylinder 10, the top pins 20 b and bottom pins 20 a are forced by the springs 21 down into the plug 13. ![]() The depths of the cuts 16 on the key 15 are called bittings and typical are numbered from 0 to 9. When a cylinder has been pinned for master keying, one or more master pins 20 c (see FIGS. Pins 20 are comprised of at least two segments, a bottom pin 20 a and a top pin or driver 20 b. ![]() Within the shell 12 and plug 13 are a plurality of pins 20 and springs 21. A series of cuts 16 are placed on the upper edge of key 15. ![]() The plug 13 has an axially extending keyway 14, which accepts key 15. The cylinder 10 consists of a shell 12 having a rotatable plug 13 within. 1A through 1C show a typical pin tumbler cylinder 10. Y10T- TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATIONįIGS.Y10- TECHNICAL SUBJECTS COVERED BY FORMER USPC.Y- GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS AND DIGESTS.E05B27/0053- Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in for use with more than one key, e.g.E05B27/00- Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in.E05B- LOCKS ACCESSORIES THEREFOR HANDCUFFS.E05- LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES.238000004458 analytical method Methods 0.000 description 2.238000002826 magnetic-activated cell sorting Methods 0.000 description 6.Assignors: SCHLAGE LOCK COMPANY Assigned to JPMORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT reassignment JPMORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT SECURITY AGREEMENT Assignors: SCHLAGE LOCK COMPANY LLC Assigned to JPMORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT reassignment JPMORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT SECURITY AGREEMENT Assignors: SCHLAGE LOCK COMPANY LLC Anticipated expiration legal-status Critical Status Expired - Lifetime legal-status Critical Current Links Assignors: SELIBER, LLOYD Application granted granted Critical Publication of US6516644B1 publication Critical patent/US6516644B1/en Assigned to SCHLAGE LOCK COMPANY LLC reassignment SCHLAGE LOCK COMPANY LLC NUNC PRO TUNC ASSIGNMENT (SEE DOCUMENT FOR DETAILS). Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Application filed by Schlage Lock Co LLC filed Critical Schlage Lock Co LLC Priority to US09/361,071 priority Critical patent/US6516644B1/en Assigned to SCHLAGE LOCK COMPANY reassignment SCHLAGE LOCK COMPANY ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Original Assignee Schlage Lock Co LLC Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.) Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Lifetime Application number US09/361,071 Inventor Lloyd Seliber Current Assignee (The listed assignees may be inaccurate. Google Patents Method of master keying a system of locksÄownload PDF Info Publication number US6516644B1 US6516644B1 US09/361,071 US36107199A US6516644B1 US 6516644 B1 US6516644 B1 US 6516644B1 US 36107199 A US36107199 A US 36107199A US 6516644 B1 US6516644 B1 US 6516644B1 Authority US United States Prior art keywords key master array change keys Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google Patents US6516644B1 - Method of master keying a system of locks US6516644B1 - Method of master keying a system of locks ![]()
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