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
Method and system for a low-power client in a wide area network
Use of emerging non-volatile memory elements with flash memory
Disc shaped high density recording medium
Solid-state image sensing apparatus and electronic apparatus
Fast and compact circuit for bus inversion
High brightness laser diode module
Personalized location information for mobile devices
  Randomly Featured Patents
Optical recording medium having a plurality of guide tracks transfer regions
Aluminum chelate latent curing agent and production method thereof
Hypereutectic aluminum silicon alloy
System for collecting waste toner
Throwaway tip and throwaway-type cutting tool
Process and apparatus for producing a bonded metal coating
Method and apparatus for nozzle type ELID grinding
Bowie-dick test device
p53 activator peptides
Power-factor-corrected electronic ballast circuit