A tamper-resistant and child-resistant closure

作者: Eugene Edward Davis

DOI:

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摘要: This invention provides a tamper-resistant and child-resistant container cap.assembly in which body with substantially cylindrical neck including an externally screw threaded portion near to the top plurality of lugs at bottom, cap tapers internally outwardly from screw-threaded part has corresponding number depending webs bottom for engagement manner ratchet pawl mechanism band provided below connected thereto by frangible tongues, being shaped engage so that when is unscrewed rises but held down tongues are broken.

参考文章(6)
Edward W. Owens, Ned J. Smalley, Safety closure and container ,(1975)
Robert C. DeWallace, Safety closure with liner ,(1981)
Eugene Edward Davis, Tamper-resistant screw closure ,(1982)