Patents by Inventor Edward H. Calkins

Edward H. Calkins has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4730626
    Abstract: A smoker's pipe that includes a hollow shank, a bowl assembly mounted at one end of the shank and a bit connected to the other end of the shank. The pipe also comprises in one embodiment a flow separator which respectively directs the smoke and liquid components of the smoke fluid into a gaseous smoke conduit and a liquid conduit, part of each conduit being in the shank and part of each conduit being in the bit. Also included is a rotatable connector that sealingly connects the two parts of each conduit together, yet also permits relative rotation of the bit and shank.
    Type: Grant
    Filed: March 25, 1986
    Date of Patent: March 15, 1988
    Inventor: Edward H. Calkins
  • Patent number: 4577645
    Abstract: An improved smoker's pipe of the dry bowl type. The pipe is comprised of a hollow stem having a mouthpiece mounted at one end and a bowl assembly mounted at the other end. In one embodiment of the pipe the bowl assembly includes an outer bowl removably mounted on the stem and concentrically spaced around an inner, combustion bowl. The outer bowl has an upper cylindrical portion and a lower skirt portion with a notch therein for removably receiving the stem portion. The combustion bowl has a lower, centrally located vertical smoke hole in communication with a short, longitudinally extending passageway located below the smoke hole. The passageway is in fluid communication with the stem and its short length results in minimal fluid accumulation therein.
    Type: Grant
    Filed: December 16, 1981
    Date of Patent: March 25, 1986
    Inventor: Edward H. Calkins
  • Patent number: 4362169
    Abstract: A smoker's pipe of the dry bowl type is disclosed which has a ceramic inner bowl secured at its lower end to the lower end of an outer plastic bowl in a manner to space the bowls radially apart for the establishment of a cooling air space between the bowls. The pipe has a stem provided with an auxiliary fresh air inlet that is in communication with one end of a horizontal longitudinally extending passageway located in the bottom of the inner bowl below the combustion chamber and in communication therewith. The other end of the passageway is in communication with a cooling chamber to communicate smoke from the inner bowl to a mouthpiece fitted in the outer end of the stem. The mouthpiece has an insert cluster containing a smoke passage tube and a liquid contaminant tube, the latter of which is received within the open end of a liquid absorber mounted on a plug that is frictionally fitted in a bore formed in the front end of the stem below the bowl assembly.
    Type: Grant
    Filed: December 5, 1980
    Date of Patent: December 7, 1982
    Inventor: Edward H. Calkins