Lock having an indicative lock core

• US 7,779,657 B2
• Filed: 09/04/2008
• Issued: 08/24/2010
• Est. Priority Date: 06/14/2007
• Status: Expired due to Fees

• Current Assignee: Chun Te Yu
• Original Assignee: Chun Te Yu
• Inventors: Yu, Chun Te
• Primary Examiner(s): Gall; Lloyd A
• Application Number:
  US12/230,718
• Publication Number:
  US 20090007605A1
• Time in Patent Office: 719 Days
• Field of Search: 70/21, 70/25, 70/26, 70/38.A, 70/38.C, 702/84, 702/85, 70D/IG.63, 70D/IG.71
• US Class Current: 70/21
• CPC Class Codes: E05B 35/00 Locks for use with special keys or a plurality of keys ; keys therefor
• CPC Class Codes: E05B 35/105 Locks allowing opening by official authorities, e.g. master key opening of luggage locks by customs officials
• CPC Class Codes: E05B 37/0034 actuated by either
• CPC Class Codes: E05B 37/025 in padlocks
• CPC Class Codes: E05B 39/00 Locks giving indication of authorised or unauthorised unlocking with key identification means E05B35/001; alarm locks E05B45/00
• CPC Class Codes: Y10S 70/59 Lock with indicator
• CPC Class Codes: Y10T 70/415 Combination and/or key-controlled
• CPC Class Codes: Y10T 70/422 Rigid shackle
• CPC Class Codes: Y10T 70/424 Sliding
• CPC Class Codes: Y10T 70/446 Rigid shackle
• CPC Class Codes: Y10T 70/463 Long leg engaged
• CPC Class Codes: Y10T 70/491 Shackles
• CPC Class Codes: Y10T 70/7141 Combination and key
• CPC Class Codes: Y10T 70/7147 Combination or key
• CPC Class Codes: Y10T 70/7407 Operating indicators
• CPC Class Codes: Y10T 70/7486 Single key
• CPC Class Codes: Y10T 70/7576 Sliding and rotary plug
• CPC Class Codes: Y10T 70/7644 Key- and tool-controlled
• CPC Class Codes: Y10T 70/8027 Condition indicators

Abstract

A lock includes a housing, a shackle, a controlling unit and a lock core. The shackle has a root section and a free section. The root section is disposed in the housing. The free section extends from the root section and is disposed outside the housing. The controlling unit is disposed in the housing and connected to the root section of the shackle. In particular, the controlling unit is capable of rotating about the root section and axially moving with the root section. Additionally, the lock core is disposed in the housing and is configured to control rotation of the controlling unit.

Claims

1. A lock comprising:

a housing;

a shackle having a root section and a free section;

said root section disposed in said housing;

said free section extending from said root section;

a first lock core disposed in said housing and including a spindle capable of being driven to rotate by a key;

a controlling unit disposed in said housing, defining a locking hole in a top thereof to receive said root section of said shackle, and including a block and a driving member on a bottom thereof; and

said controlling unit having one end connecting with said root section of said shackle and being capable of moving linearly with said root section of said shackle along an axis of said root section;

a second lock core disposed in said housing and including a movable part and a plurality of numeral wheels configured to control axial movement of said movable part;

wherein said driving member of said controlling unit is engaged with said spindle so that said controlling unit is able to rotate with said spindle simultaneously to either a locking position where said block of said controlling unit is obstructed by a distal end of said movable part for disabling said linear movement of said controlling unit with said shackle or an unlocking position where said block departs from said end of said movable part for enabling said linear movement of said controlling unit with said shackle.

2. The lock of claim 1, wherein said housing defines an opening;

and said spindle is received inside said housing and exposed in said opening and is able to move by operation of said key to an indicative position where said spindle is partly situated outside said opening of said housing.