Resources Contact Us Home
Cognitive skill based child-resistant and tamper-evident closure

Image Number 3 for United States Patent #5351845.

A generally cylindrical relative rotatable lock structure comprises three relatively rotatable coaxial members. The first and second members have generally opposed surfaces carrying connecting means which interengage to prevent relative axial movement between those members except in predetermined relatively rotatable positions. The third member is supported by one of the first or second members to prevent axial movement relative to the supporting member, but to permit rotatable movement. Friction between the third and non-supporting member causes the third member to rotate with the non-supporting member. The third member has connecting means cooperable with the connecting means on the member which does not support the third member to prevent relative axial movement between the third and non-supporting members except in predetermined relative position. Opposing stop members are provided on the third member and the supporting member limiting their relative rotation in one direction to less than one revolution before the stop faces abut after which the third member is driven by the stop member to rotate with the supporting member. However, at least one of the stop members has a ramp on the face opposed to the stop face of such a pitch that the other stop member, upon encountering the ramp, is able to ride up the ramp and over the stop member during relative rotation in the direction opposite to that causing contact between the stop faces. The principal use of the invention is as a closure for child-resistant packaging.

  Recently Added Patents
Methods and apparatus to form a wavelet representation of a pathology slide having glass and tissue regions
Charged particle microscope providing depth-resolved imagery
Image recording apparatus, image recording method, and storage medium storing program, for use in recording shot images
Wireless communication system, wireless communication apparatus, and wireless communication method
Image processing apparatus, image forming system, and image forming method with geometric processing
Device profile assignment based on device capabilities
Array substrate for liquid crystal display device and method of fabricating the same
  Randomly Featured Patents
Plug connector
Stylus having retracted and extended positions
Component placement unit as well as a component placement device comprising such a component placement unit
Asbestos diaphragms for electrochemical cells and the manufacture thereof
Universal simplified riveter
Plot handling apparatus
Steviol compounds
Synthesis and use of .alpha.-ketoamide derivatives and arrays
Adjustable setting block assembly
Liquid state detecting sensor