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Smoking pipe

  • US 4,020,853 A
  • Filed: 10/02/1975
  • Issued: 05/03/1977
  • Est. Priority Date: 10/02/1975
  • Status: Expired due to Term
First Claim
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1. In a smoking pipe, a body having a bowl portion and a stem portion,the bowl portion having a side wall, an open top and a bottom,the side wall having air inlet means about the upper portion thereof,the lower portion of the side wall being substantially continuous and free of openings,said bowl bottom having a smoke outlet,an outer wall spaced about said side wall and bottom and having an air inlet therein engagable by a finger of the user to totally close said side wall air inlet at will,a flow passage from said smoke outlet to said stem,and a portion of flow passage comprising a flow barrier between said air inlet means of the side wall and said smoke outlet.

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