| 摘要 |
A vacuum loader for providing granular resin material to resin material processing equipment has a loader housing, a vacuum motor, a dust filter, an air blast generator, a dump flap, and a pivoting manually releasable latch for retaining the lateral web and the loader from tilting rotation of the loader about the shaft and supporting the loader when placed in a tilted orientation; the latch being weighted to pivotally return to a web-retaining position when released by an operator. |
| 主权项 |
1. Apparatus for delivering an air blast, comprising;
a. a shell having an aperture via which the air blast is delivered; b. a closure member residing within the shell and being movable, responsively to air entering the shell, between a position at which the closure member contactingly closes the aperture and at which the closure member is spaced from the aperture; and c. a seal between the closure member and the shell, for permitting air flow between the shell interior and the closure member towards the aperture, but blocking air flow between the shell interior and the closure member in a direction away from the aperture. |
