Tiltable vacuum loader
OwnerStephen B. Maguireinventor
Life of this patent
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Abstract
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.
Claims18
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.
A vacuum loader for providing granular material to granular material processing equipment, comprising:
- a. a housing having a granular material intake and a granular material outlet facilitating downward gravity flow of granular material out of the loader towards the processing equipment;
- b. a latch pivotally connected to the housing and being rotatably movable relative thereto between a position at which the latch maintains the loader in an upright vertically oriented operating position and restrains the loader from tilting rotation, and a position at which the latch supports the loader at a tilted orientation for cleaning or maintenance.
Apparatus providing resin material to resin material processing equipment, comprising:
- a. a housing having a resin material intake, a granular material outlet, for downward, gravity induced flow of resin material towards the processing equipment and a suction inlet for drawing resin material into the housing under vacuum;
- b. a dust filter connected to the housing and positioned between the resin intake and the suction inlet so that air from the resin intake cannot reach the suction inlet without passing through the dust filter;
- c. apparatus for delivering an air blast to the housing interior for air flow through the dust filter, comprising:
- i. a shell having an a first aperture communicating with the housing interior and a second aperture for introduction of pressurized air into the shell;
- ii. a closure member movable slideably within the shell to close the first aperture at one extremity of member travel;
- iii. a seal between the closure member and the shell interior, permitting air flow between the shell interior and the closure member towards the first aperture, but blocking air flow between the shell interior and the closure member in a direction towards the second aperture.
(canceled)
A vacuum loader for providing granular material to granular material processing equipment, comprising:
- a. a housing having a granular material intake and a granular material outlet facilitating gravity-induced flow of granular material out of the loader towards the processing equipment;
- b. a latch connected to the housing and being movable relative thereto between a position at which the latch maintains the loader in an operating position and restrains the loader from movement therefrom, and a second position at which the latch maintains the loader for cleaning or maintenance.
Dependencies are inferred from the claim text.