Air flow dry bowl pipe

A smoker's pipe comprising

• a hollow stem;
• a mouthpiece having a longitudinal bore therein, said mouthpiece being removably mounted on the rearward end of said stem;
• and
• a bowl assembly mounted on the forward, upper portion of said stem, said outer bowl assembly comprising
• an outer bowl,
• an inner bowl of a refractory material and having walls which define an interior combustion chamber, the interior surface of said walls symmetrically converging about a centrally located, axial bore, said inner bowl also having a passageway longitudinally extending completely through the bottom portion thereof below said combustion chamber and in communication with said axial bore and with the interior of said stem, said interior wall surfaces being coated with an adhering, pyrolyzed carbon layer formed by heating a previously fired bowl that has been coated with a sugary substance to a high temperature, and said inner bowl having means for making said walls and the surfaces of said passageway non-porous to fluid flow therethrough, and
• means for mounting said inner bowl concentrically inside and spaced from said outer bowl.

A smoker's pipe comprising:

• a hollow elongate stem having a forward end and a rearward end and having a cooling chamber therein, said cooling chamber having a normally upper smoke portion and a normally lower liquid portion;
• a mouthpiece having a longitudinal bore therein and being mounted on the rearward end of said stem;
• an outer bowl mounted on the forward portion of said stem and having an orifice located in the forward, lower portion thereof;
• an inner bowl having walls which define an interior combustion chamber, an axially extending bore, and a passageway longitudinally extending completely through the bottom portion of said inner bowl below said combustion chamber and in communication with said axially extending bore, with said smoke portion of said cooling chamber at the rearward end, and with said outer bowl orifice at the forward end, said passageway having substantially the same diameter throughout so that said passageway can be cleaned through said outer bowl orifice and any tobacco particles can drop into said liquid portion of said cooling chamber;
• and
• means for mounting said inner bowl on said stem, concentrically inside and spaced from said outer bowl, said mounting means comprising means mounted in said outer bowl orifice for engaging said inner bowl about said forward passageway end and forcing said inner bowl into retaining engagement with a portion of said stem, and means for engaging the tops of said outer and inner bowls for centering said inner bowl top in said outer bowl.

A smoker's pipe comprising:

• an elongate hollow stem having a chamber therein;
• a mouthpiece mounted on the rearward end of said stem, and having a longitudinal bore therein in fluid communication with the rearward portion of said stem chamber;
• a bowl mounted on the forward portion of said stem and in fluid communication with the forward portion of said stem chamber through a longitudinal passageway therein;
• fluid tight means for dividing the inside of said stem chamber into said forward and rearward portions;
• and
• a smoke tube through said fluid tight means for providing fluid communication between said stem chamber forward and rearward portions, said smoke tube having a closed forward end and having at least one orifice in the side thereof.