Pipe thread gauge
OwnerRichard J. Lazesinventor
Life of this patent
Estimating the term…
Abstract
A pipe thread gauge for measuring the pitch diameter of threaded pipe and determining the taper on the inner and outer sides of the threaded ends of the pipe comprising: an elongated rail, a fixed blade block assembly mounted on the rail, a second blade block assembly slidably mounted on the rail and movable relative to the fixed blade block assembly, thread-engaging blades mounted on both the fixed and sliding blade block assemblies, set screws mounted in the second blade block assembly for engaging apertures provided in the rail at selected locations therealong for locking the slidable blade box assembly at such locations, and a digital read-out to visually display measurements of pitch diameter and/or taper.
Claims12
A pipe thread gauge comprising:
- a. an elongated rail;
- b. first blade block assembly fixedly mounted on said rail and having a first thread-engaging blade fixedly connected thereto, said blade extending substantially normal to said rail;
- c. second blade block assembly slidably mounted on said rail for longitudinal sliding movement therealong;
- d. means for locking said second blade block assembly at selected locations along said rail;
- e. second thread-engaging blade fixedly connected to said second blade block assembly and set at a selected angle to said first thread-engaging blade thereby defining an open throat capable of receiving the threaded end of said pipe;
- and
- f. means slidable along said first blade block assembly for engaging said end of the threaded end portion of said pipe for visually indicating the length occupied by the threads on said threaded end portion of said pipe, wherein said visual indicating means provides a digital read-out of said length.
A pipe thread gauge comprising:
- a. an elongated rail;
- b. first blade block assembly fixedly mounted on said rail and having a first thread-engaging blade fixedly connected thereto, said blade extending substantially normal to said rail;
- c. second blade block assembly slidably mounted on said rail for longitudinal sliding movement therealong;
- d. means for locking said second blade block assembly at selected locations along said rail;
- e. second thread-engaging blade fixedly connected to said second blade block assembly and set at a pre-selected angle to said first thread engaging blade, thereby defining an open throat capable of receiving the threaded end portion of a pipe;
- and
- f. means slidable along said first blade block assembly for engaging said end of the threaded end portion of said pipe for visually indicating the length occupied by the threads on said threaded end portion of said pipe, wherein said visual indicating means provides a digital read-out of said length;
- g. said first and second thread-engaging blades further comprise relatively sharp edges exterior of said throat.
A pipe thread gauge comprising:
- a. an elongated rail;
- b. first blade block assembly fixedly mounted on said rail and having a first thread-engaging blade fixedly connected thereto, said blade extending substantially normal to said rail;
- c. second blade block assembly slidably mounted on said rail for longitudinal sliding movement therealong;
- d. means for locking said second blade block assembly at selected locations along said rail including apertures provided in said rail at selected locations therealong and means threadably mounted in said second blade block assembly for engaging said apertures;
- e. second thread-engaging blade fixedly connected to said second blade block assembly and set at selected angles to said first thread-engaging blade thereby defining an open throat capable of receiving said threaded pipe end;
- and
- f. means slidable along said first blade block assembly for engaging said end of the threaded end portion of said pipe for visually indicating the length occupied by the threads on said threaded end portion of said pipe.
Dependencies are inferred from the claim text.