Flowable material dispenser
OwnerSteven D. Witcherinventor
Life of this patent
Estimating the term…
Abstract
A flowable material dispenser including a barrel defining a cylindrical interior volume for holding a flexible material bag containing a flowable material. A nozzle is attached to the first end of the barrel for discharging the flowable material through a nozzle hole; and a closure is disposed on the second end. A center nut disposed on the closure holds a threaded drive rod threadably and rotatably inserted in the center nut. The drive rod includes an inner end and an outer end. Drive structure for imparting rotational forces to the drive rod moves the drive rod reciprocally and axially within the cylindrical interior volume of the barrel to twist and wring out flowable material contained within the flexible material bag.
Claims20
A flowable material dispenser, comprising:
- a barrel defining a cylindrical interior volume, said barrel having a front end, a rear end, and a closure mechanism for selectively opening and closing said barrel for placement of a flexible material bag containing a flowable material and removal of said bag when partially or fully emptied of the flowable material;
- a nozzle attached to said front end for discharging the flowable material through a nozzle hole;
- a rear end closure disposed on said rear end;
- a center nut disposed on said rear end closure;
- a threaded drive rod threadably and rotatably inserted in said center nut, said drive rod having an inner end and an outer end;
- drive structure for imparting rotational forces to said drive rod so as to move said drive rod reciprocally and axially within said cylindrical interior volume of said barrel;
- and
- bag attachment structure for attachment to the flexible material bag;
- wherein when said drive rod is rotated in a discharge direction, the flexible material bag is twisted, thereby reducing the bag's volume and forcing the flowable material through said nozzle hole.
Dependencies are inferred from the claim text.