Reaming apparatus
OwnerJames A. Vowelinventor
Life of this patent
Estimating the term…
Abstract
A reamer for reaming the bell of plastic pipe. A cylindrical housing includes a cylindrical cavity communicating with the lower end of the housing. A downward facing annular shoulder is formed about the circumference of the cavity. The top of the housing includes a bore having a shaft threadably engaged therein. The shaft is concentric with the cavity and includes a reamer at its lower end for reaming the bell of a pipe abutted against the shoulder.
Claims10
Apparatus for scraping a pipe and glue from the radially inner surface of a pipe bell to which the radially outer pipe surface is glued, said pipe bell having a predetermined depth and said pipe being cut substantially flush with the end of said bell, said apparatus comprising:
- a cylindrical housing having upper and lower ends;
- a first cylindrically shaped chamber formed at the lower end of said housing and communicating with the exterior thereof, said first chamber having a radially inner diameter of a size sufficient to receive such a pipe bell therein;
- a second cylindrically shaped chamber formed above said first chamber in said housing, said second chamber communicating with said first chamber and being coaxial therewith;
- a downward facing annular shoulder formed at the juncture of said first and second chambers for abutment against the end of such a pipe bell, said shoulder having a preselected longitudinal position on said housing;
- a threaded bore formed through the upper end of said housing and having its longitudinal axis in alignment with the longitudinal axes of said chambers;
- a bolt having a preselected length threadably received in said bore, said bolt extending into said first chamber responsive to rotation thereof;
- a reamer mounted on the lower end of said bolt for scraping the radially inner surface of such a pipe bell when it is abutted against said annular shoulder;
- and
- a head fixedly attached to the upper end of said bolt, said head having a lower side which is substantially parallel to the upper end of said housing, said head preventing further bolt extension into said first chamber when the lower side thereof abuts against said upper housing end, said preselected bolt length and said preselected longitudinal shoulder position being selected relative to one another so that reamer scraping can extend to the depth of such a pipe bell when it is abutted against said shoulder, but not therebeyond.
Dependencies are inferred from the claim text.