Dispensing – With discharge assistant – With material supply container and discharge assistant with...
Patent
1996-05-24
1998-01-27
Shaver, Kevin P.
Dispensing
With discharge assistant
With material supply container and discharge assistant with...
141 26, 417238, B67D 540
Patent
active
057114625
ABSTRACT:
A drywall tool filling pump includes a pump head removably attached to the top end of a pump cylinder positioned inside a bucket of drywall mud. Left and right hinge members extend from the pump head. A plunger shaft extends coaxially from the pump head. A lever has a proximal end pivotally attached to the top of the plunger shaft, and is positionable on either side of the pump head. A pair of connecting rods pivotally connect an intermediate portion of the lever to either hinge member. An output port arranged on the pump head may be connected to a variety of automatic drywall tools. A L-shaped mounting bracket has a top end attached to the output port, and extends downwardly for being positioned outside the bucket. A valve cap is attached to the lower end of the pump cylinder by bolts that extend through longitudinal slots on the cylinder, so that the valve cap may be easily removed by loosening the bolts, and sliding them out the slots. The lever may be easily configured for either right-handed or left-handed use by positioning it on either side of the pump head, and attaching the connecting rod to the corresponding hinge member with a removable pin. In the course of a workday, a worker may switch the position of the lever so as to exercise both arms evenly.
REFERENCES:
patent: 1076488 (1913-10-01), Deming
patent: 3231148 (1966-01-01), Miller
patent: 5150837 (1992-09-01), Ferrari
Premier Drywall Tool Co. Tool Manual, pp. 4, 5, 24, 25.
Doerock Inc. Versa-Tool brochure.
Concorde Tool Corp. brochure.
TapeMaster brochure.
TapeTech brochure, cover and p. 3.
Precision Taping Tools brochure, front and back sides.
Ames brochure, cover and p. 4.
Speed Pump parts diagram.
Lo Jack
Shaver Kevin P.
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