Dual-lock type padlock having double reminding function

• US 8,056,376 B2
• Filed: 10/21/2009
• Issued: 11/15/2011
• Est. Priority Date: 11/23/2004
• Status: Active Grant

• Current Assignee: Chun Te Yu
• Original Assignee: Chun Te Yu
• Inventors: Yu, Chun Te
• Primary Examiner(s): GALL, LLOYD A
• Application Number:
  US12/588,600
• Publication Number:
  US 20100037663A1
• Time in Patent Office: 755 Days
• Field of Search: 70432-441, 70/21, 70/25, 70/26, 702/84, 702/85, 70D/IG.59, 70D/IG.63, 70/38.R, 70/38.A, 70/38.B
• US Class Current: 70/21
• CPC Class Codes: E05B 37/0034 actuated by either
• CPC Class Codes: E05B 37/0058 by axial disengagement between hub and rim of tumbler discs or rings
• CPC Class Codes: E05B 37/025 in padlocks
• CPC Class Codes: E05B 67/10 with devices for securing the free end of the shackle
• CPC Class Codes: E05B 67/22 Padlocks with sliding shackles, with or without rotary or pivotal movement
• CPC Class Codes: Y10T 70/415 Combination and/or key-controlled
• CPC Class Codes: Y10T 70/424 Sliding
• CPC Class Codes: Y10T 70/461 Short leg engaged
• CPC Class Codes: Y10T 70/489 Housings
• 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 70/8027 Condition indicators

Abstract

A lock includes a housing, a locking mechanism and an indicator. The locking mechanism is disposed in the housing and includes a first module and a second module both configured to lock or unlock the lock. The indicator is able to move from an original position to an indicative position outside the housing in response to operation of the first module. However, when being located in the indicative position, the indicator is unresponsive to the operation of the first module.

Claims

1. A lock comprising:

a housing;

a locking mechanism disposed in the housing and including a first module and a second module both configured to lock or unlock the lock; and

an indicator capable of moving from an original position to an indicative position outside the housing in response to operation of the first module,

wherein when the indicator is located in the indicative position, locking or unlocking the lock via the first module does not cause the indicator to return back to the original position.

2. The lock of claim 1, wherein the indicator is allowed to be returned from the indicative position to the original position when the lock is unlocked via the second module.

3. The lock of claim 1 further comprising a shackle rotatably connected with the housing and a catch member movably connected with the housing, wherein the catch member moves from a closed position to an opened position when the first module is operated to unlock the lock and returns from the opened position to the closed position when the first module is operated to lock the lock;

and the shackle is prevented from rotation when the catch member is located in the closed position and is free to rotate when the catch member is located in the opened position.

4. The lock of claim 3, wherein the indicator is allowed to be returned from the indicative position to the original position when the lock is unlocked via the second module.

5. The lock of claim 3, wherein the catch member is partly located outside the housing and the indicator is mounted on the catch member.

6. The lock of claim 5, wherein the indicator is allowed to be returned from the indicative position to the original position when the lock is unlocked via the second module.