Closure fasteners – Bolts – Sliding
Reexamination Certificate
1999-02-22
2001-04-03
Browne, Lynne H. (Department: 3627)
Closure fasteners
Bolts
Sliding
Reexamination Certificate
active
06209931
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates to a multi-point door locking system.
BACKGROUND OF THE INVENTION
It is known to use multi-point door locks in sliding or french doors to provide secure closure and locking. In configuring a multi-point door lock there are a number of design considerations that must be made such that the door lock is easily manufactured, easily installed, functionally and aesthetically appealing, and secure.
A main feature of a typical conventional multi-point door lock is that the door lock has more than one latch or bolt to engage a door frame. Plural latches or bolts create a lock that is substantially more difficult to overcome in a forcible entry than a single deadbolt and latch. Thus, it is desirable, for example, in a french door to have three bolts and a latch. A first bolt and latch engage with a second door. A second and third bolt engage the upper and lower portions of the door frame, respectively. Such door locks do not permit the addition of the second or third bolts or latches to the central locking unit. Further, such multi-point door locks are not adaptable to accommodate doors of various heights. Further still, such multi-point door locks are configured to be used with only one door type. For example, a conventional multi-point door lock may only have the option of allowing the second and third bolt or latch mechanisms to run along an edge of the door, even when it may be desirable to have the mechanisms fully concealed within the door itself.
Conventional multi-point door locks may allow the second and third bolts or latches, which extend out the top and bottom of the door, to be extended even when the door is open. Therefore, if the door is slammed shut while the bolts are extended, the bolts may cause damage to the door, the door frame, or a door frame molding. Furthermore, such conventional multi-point door locks typically require extension of all the bolts or latches according to a specific sequence without allowing them to be extended independently of one another.
Moreover, such conventional multi-point door locks are not easily reconfigurable for use as left handed or right handed doors. Furthermore, such conventional multi-point door locks require that a user must rotate the latch drive handle more than 45 degrees in order to fully engage or disengage the bolts.
Accordingly, it would be advantageous to provide for a multi-point door lock system having multiple bolts or latches designed to engage a door or a door frame. It would also be advantageous to provide for a multi-point door lock having a standard deadbolt and extension bolts or shoot bolts extending through the door. Further still, it would be advantageous to have a multi-point door lock with shoot bolts or extension bolts that extend either along the front edge of the door or through the interior of the door. Thus, it would be advantageous to have such a mechanism that is easily configurable for a variety of door designs.
It would further be advantageous to provide for a multi-point door lock that has an activation button that allows actuation of at least one of the extension bolts or shoot bolts and the deadbolt when the activation button is depressed. Further, it would be desirable to have a multi-point door lock system in which the deadbolt may be extended independently of extension of the shoot bolts or extension bolts. Further still, it would be desirable to have a multi-point door lock system in which the extended extension bolts are prevented from retraction when the deadbolt is extended.
It would further be advantageous to provide for a multi-point door lock system that is easily reconfigurable for one of a left hand door and a right hand door. It would further be advantageous to provide for a multi-point door lock in which the door lock handle actuates the door latch and provides a positive indication of when at least one extension bolt is extended. It would further be advantageous to provide for a multi-point door lock system such that the deadbolt and extension bolts move linearly at least one inch, thereby creating a more structurally sound locking system. It would further be advantageous to provide for a multi-point door lock system having fewer parts, especially fewer springs, creating an easily manufactured door lock.
It would be desirable to provide for a multi-point door lock incorporating any one or more of these advantageous features.
SUMMARY OF THE INVENTION
The present invention relates to a locking system. The locking system includes a base lock member moveable between a first position and a second position. The locking system further includes a first input device and an activation device. The locking system has a base lock member that is moveable between a first position and a second position in response to actuation of the first input device and the base lock member is prevented from moving from a first position to a second position when the activation device is not activated.
The present invention also relates to a locking system. The locking system includes a base lock member that is moveable between an open position and a fully locked position. The locking system also includes at least one secondary lock member that is moveable between an open position and a fully locked position and a first input device. The first input device is adapted to coact with at least one of the base lock member and the at least one secondary lock member. Movement of the base lock member to a fully locked position is selectively and sequentially independent of the movement of the at least one secondary lock member to the fully locked position.
The present invention further relates to a door lock assembly for use in locking a door. The door lock assembly includes a housing shaped to be inserted into an aperture in a door. The door lock assembly further includes a latch extendable from the housing, a first lock member extendable from the housing, and a first input device mounted adjacent the housing and coacting with the first lock member, the first input device affecting movement of the first lock member. The door lock assembly further includes at least one second lock member moveable relative to the housing, a second input device mounted adjacent the housing and configured to selectively actuate one of the at least one second lock member, adjacent the latch, and the at least one second lock member and the latch, and an activation device that allows actuation of one of the first lock member independent of the at least one second lock member, and the first lock member and the at least one second lock member independent of each other, when the activation device is activated.
The present invention still further relates to a lock assembly for securing a door to a door frame. The door has a top edge, a bottom edge opposite the top edge, a first edge and a second edge opposite the first edge. The door is movably coupled to the frame. The lock assembly includes a housing shaped to be inserted into an aperture in the door. A deadbolt is moveable through a deadbolt aperture in the housing, the deadbolt aperture is located along the first side edge of the door. A thumbturn is rotatably mounted adjacent the mortise housing and coacts with the deadbolt. The thumbturn affects movement of the deadbolt. A first lock member is moveable relative to the housing and a second lock member is also moveable relative to the housing. An activation device allows actuation of one of the first and second lock members, the first and second lock members and the deadbolt independent of each other, and the first and second lock members and the deadbolt dependent with each other when the activation device is activated.
The present invention still further relates to a lock assembly for securing a door to a door frame. The door has a first edge and a second edge opposite the first edge. The door is movably coupled to the fame. The lock assembly includes a housing shaped to be inserted into an aperture in the door. A latch is moveable through a latch aperture in the housing, the latch apert
Purcell Stephen Mark
Smith Michael David
Von Stoutenborough Eric
Wright Thomas Michael
Browne Lynne H.
Foley & Lardner
Newell Operating Company
Walsh John B.
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