| 摘要 |
Drywall mud pumps for pumping drywall joint compound from buckets into drywall tools that each include a body or main cylinder, a driver or piston, and a handle. A structural component may be in rigid relation to the body and the handle may include two members that slidably or telescopically engage to allow the driver or piston to travel in a straight line while the handle pivots about a pivot point at an end of the structural component. In various embodiments, the handle may include a linear ball or PTFE bearing reducing friction between the two members, the pump may include a clamp to attach the pump to the side of the bucket, or the pump may have an inlet valve or foot valve that may include two semi-circular-shaped flaps that hingedly rotate about a pin. Methods may include acts of selecting, obtaining, or providing various such components. |
