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US 6,584,819 B1Granted
Lock with two layers of lock mechanism
OwnerChung-I Hunginventor
Life of this patent
Estimating the term…
Abstract
A lock with two layers of lock mechanism, which comprises a body casing, an upper lock body, a lower lock body, a connection plate and a key; the chamber of the body casing is used for mounting the two lock bodies; the two lock bodies are connected together with the connection plate; the center of the upper lock body has a key hole for receiving a flat key to plug into a key hole of the lower lock body; the other end of the key has a cylindrical key, which is to be plugged into a ring-shaped key groove; when the key is pushed and turned, both the upper and lower lock bodies will be unlock simultaneously.
Claims9
A lock with two locking mechanisms comprising:
- a body casing which includes a space for mounting two lock bodies, said body casing having a cylindrical hole and an end of said body casing having a round hole communicating with the cylindrical hole;
- an upper lock body mounted in the cylindrical hole of said body casing;
- a lower body mounted on an inner end of said cylindrical hole of said body casing, an outer end of said lower lock body including a core bar extending from the body casing;
- a connection plate mounted between the upper and lower lock bodies, and including an unlock groove and a curved portion on an outer edge thereof, one end of a bolt of said lower lock body mounted across a surface of said curved portion;
- and
- a key including a cylindrical key and a flat key, and said flat key passing through a key hole of said upper lock body and a key hole of said lower lock body.
3 more elements
Dependencies are inferred from the claim text.