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  Drawer slide with releasable latchUSPTO Application #: 20070241651Title: Drawer slide with releasable latch Abstract: A drawer slide includes first and second telescoping members, a latch having a dog and pivotally connected to the first member and a catch on the second member to receive the dog of the latch in a locking position of the latch. An actuator includes a cam surface and movably coupled to the first member and a cam follower on the latch riding on the cam surface. The cam surface includes a locking position on the cam surface between two unlocking positions on the cam surface for the latch. Thus the latch can be operated in opposed directions. (end of abstract) Agent: Barnes & Thornburg LLP - Washington, DC, US Inventors: Thomas Edward Burgess, Joerg Vom Dorp USPTO Applicaton #: 20070241651 - Class: 312333000 (USPTO) The Patent Description & Claims data below is from USPTO Patent Application 20070241651. Brief Patent Description - Full Patent Description - Patent Application Claims
BACKGROUND AND SUMMARY OF THE DISCLOSURE [0001] The present invention relates generally to drawer slides and more specifically to a latch system for a drawer slide. [0002] Drawer slides or release mechanism for a drawer slides latches are well-known. An example is shown in recently issued U.S. Pat. No. 6,817,685 to Lammens. A latch is remotely operated by a camming or biasing translatable bar. The bar biases or cams a lever out of engagement from a tab, thereby reducing the need for directly adjusting the lever. [0003] Another example is U.S. Pat. No. 5,632,541 to Uthoff. The locking device includes one locking element secured to the forward end of the movable member of the guide rail. The locking element includes a spring-elastic actuating arm which is equipped with a locking lug receiving vertical forces. The slidable part of the guide rail is equipped with a second locking lug which receives horizontal forces and can also form part of the locking element. [0004] The present drawer slide includes a release mechanism for a latch which improves over that of the prior art. The release mechanism may be operated by a push or a pull motion, what every motion is naturally ergonomic to the user. Thus the release mechanism can be easily operated during both the extending and retracting movement of the slide. [0005] The present drawer slide includes first and second telescoping members, a latch having a dog pivotally connected to the first member and a catch on the second member to receive the dog of the latch in a locking position of the latch. An actuator is movably coupled to the first member for moving from a locking position to one of two unlocking positions on opposite sides of the locking position. The actuator is coupled to the dog for moving the dog from out of the catch for either direction of movement of the actuator from the actuator's locking position. [0006] The present drawer slide includes first and second telescoping members, a latch having a dog pivotally connected to the first member and a catch on the second member to receive the dog of the latch in a locking position of the latch. An actuator includes a cam surface and movably coupled to the first member and a cam follower on the latch riding on the cam surface. The cam surface includes a locking position on the cam surface between two unlocking positions on the cam surface for the latch. [0007] The drawer slide includes means for biasing the cam to the locking position of the cam surface. The biasing means may include a spring connected between the actuator and the first member. The cam surface may be a slot on the actuator and the cam follower is a pin riding in the slot. [0008] The drawer slide may include a third telescopic member which includes a catch for receiving the dog of the latch in the locking position of the latch. In the locked position of the dog, the dog is received in the catch of the second member in a first telescopic position of the members and in the catch of the second and third members in a second telescopic position of the members. [0009] In an extended telescopic position of the members, the dog may engage a trailing edge of the second and/or third member and prevent movement in a retraced direction of the telescopic members. The dog is stepped shape with an upper portion to be received in the of the second member in a first telescopic position of the members and in the catch of the third member in a second telescopic position of the members and a lower portion to be received in the catch of the second member in a second telescopic position of the members. The member has a generally U-shaped cross-section and the latch pivots about an axis parallel to the bight of the U-shape. The first member may include a stop to receive a leading edge of the actuator. [0010] These and other aspects of the present drawer slide will become apparent from the following detailed description of the method, when considered in conjunction with accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS [0011] FIG. 1 is a first perspective view of a drawer slide in its extended position according to the present disclosure. [0012] FIG. 2 is a perspective view of the drawer slide of FIG. 1 in a retracted and locked position that with part of two slide members being cut away. [0013] FIG. 3 is a perspective view of the first slide member with the latch and actuator elements according to the present disclosure. [0014] FIG. 4 is a first perspective view of the latch and actuator of the previous figures. [0015] FIG. 5 is a second perspective partial view of the latch and actuator from the opposite view of FIG. 4. [0016] FIG. 6 a second perspective view of a drawer slide in its extended position from the opposite view of FIG. 1. [0017] FIG. 7 is a perspective view of a sequencing lock in an unlocked condition from the opposite view of FIG. 6. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT [0018] Drawer slide 10 as shown in FIGS. 1 and 2 includes a first outer slide member 12, a second outer or middle slide member 20 and an inner slide member 30. All of the members 12, 20 and 30 are telescopically arranged to move within one another. All the members 12, 20 and 30 are generally U-shaped having two opposed walls joined by a bight. Although three telescoping members are shown, the drawer slide may only include two telescoping members being members 20 and 30. Member 12 includes a series of apertures 14 to receive fasteners to connect it to one of the drawers or the cabinet for the drawer. As shown in FIG. 3, the inner member 30 includes apertures 34 also to receive fasteners to connect it to the other of the drawer or the cabinet. If only two members are used member 20 would include a similar number of apertures to receive fasteners. [0019] A latch 40 mechanism includes a dog 42 pivotally connected to the member 30 and catches 16 and 26 on members 12 and 20, respectively. An end 46 of the dog 42 is received in catches 16 and 26 as illustrated in FIG. 2 when the catches 16 and 26 are aligned with the end 46 of the dog 42 in a first telescopic position of the members 12, 20 and 30. [0020] In a different telescopic position of members 12, 20 and 30, only the catch 26 of member 20 may be aligned with the end 46 of the dog 42 locking members 20 and 30 to each other. [0021] As shown in detail in FIG. 4, the dog 42 is pivotally connected at 42 to bracket 44. Bracket 44 is mounted by fasteners (not shown) to the member 30, as shown in FIG. 3. The pivotal axis of the dog 42 is parallel to the bight 36 of the U-shaped member 30 having opposed legs 38. Continue reading... Full patent description for Drawer slide with releasable latch Brief Patent Description - Full Patent Description - Patent Application Claims Click on the above for other options relating to this Drawer slide with releasable latch patent application. ###  How KEYWORD MONITOR works... a FREE service from FreshPatents1. Sign up (takes 30 seconds). 2. Fill in the keywords to be monitored. 3. Each week you receive an email with patent applications related to your keywords. Start now! - Receive info on patent apps like Drawer slide with releasable latch or other areas of interest. ### Previous Patent Application: Automated and movable shelving system for cabinetry Next Patent Application: Slide rail Industry Class: Supports: cabinet structure ### FreshPatents.com Support Thank you for viewing the Drawer slide with releasable latch patent info. 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