Apparatus for testing a weld seam
OwnerRema N. McCranieinventor
Life of this patent
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Abstract
An apparatus for testing a weld seam between two overlapping sheets of polyethylene comprises a nozzle in air flow communication with an air pressure gauge and an air valve. A clamping device securely holds the nozzle within the air passage located between two parallel weld seams of the overlapped polyethylene sheets and maintains a closed air system. The closed air system is pressurized to a desired air pressure level and maintained at this level for a desired length of time. A drop in air pressure, which is the result of a failure in the weld seam, is quickly noted upon the air pressure gauge permitting corrective action.
Claims6
A device for testing weld seams between two overlapping sheets of polyethylene creating an air passage therebetween comprising:
- a nozzle for insertion into the air passage;
- an air valve, in air flow connection with the nozzle, for receiving pressurized air;
- an air gauge, in air flow connection with the nozzle, for gauging the air pressure registerable within the nozzle;
- an upper arm having a securement plate;
- a lower arm pivotally attached to the upper arm;
- a first pressure plate having a first depression attached to an end of the upper arm;
- a second pressure plate having a second depression attached to an end of the lower arm:
- a securement arm having a threaded upper portion attached to the lower arm and extending through the securement plate:
- a securement nut located on the threaded portion;
- and
- wherein rotation of the securement nut articulates the upper arm toward the lower arm securing the nozzle within the first depression and the second depression while counterrotation of the securement nut articulates the upper arm away from the lower arm.
A device for testing weld seams between two overlapping sheets of polyethylene creating an air passage therebetween comprising:
- a generally elliptical-shaped nozzle for insertion into the air passage;
- an air valve, in air flow connection with the nozzle, for receiving pressurized air;
- an air gauge, in air flow connection with the nozzle, for gauging the air pressure registerable within the nozzle;
- an upper arm having a securement plate;
- a lower arm pivotally attached to the upper arm;
- a first pressure plate having a first depression attached to an end of the upper arm;
- a second pressure plate having a second depression attached to an end of the lower arm;
- a securement arm having a threaded upper portion attached to the lower arm and extending through the securement plate;
- a securement nut located on the threaded portion;
- and wherein rotation of the securement nut articulates the upper arm toward the lower arm securing the nozzle within the first depression and the second depression while counterrotation of the securement nut articulates the upper arm away from the lower arm.
Dependencies are inferred from the claim text.