Child resistant closure

Claim 1

A screw-on, child-resistant, double-cap closure for a container having a neck with a male thread thereon, said closure comprising: A. an inner screw cap having I. a crown, Ii. a skirt and Iii. a bead, Iv. the inner surface of the skirt including a female thread that matches the male thread on the container, and B. a cover having I. a crown and Ii. a skirt, Iii. said cover including an annular groove adjacent the bottom of the skirt, C. said cap being disposed concentrically within said cover, with said bead within said groove so that said cap is captive within said cover, D. a selectively engageable normally disengaged torque transmitting coupling constituting two halves of which one half is a part of the cover and the other half is a part of the cap, said coupling being engageable upon the application of an auxiliary force to the cover whereby to render the coupling drivingly engageable to transmit to the cap torque imparted to the cover, said closure including an improvement comprising: E. the transparency of at least the crown of the cover so that the exterior surface of at least the crown of the cap is visible therethrough, and F. non-uniform, non-concentric printing on the exterior surface of the crown of the cap, which printing is viewable through the crown of the cover, whereby the user instinctively, by viewing the printing on the cap as he manipulates the cover, becomes aware of the proper manner of applying forces including a twisting force and an auxiliary force to the cover in order to screw the closure on or unscrew the closure from the container.