Stirrer
OwnerGary K. Duckworthinventor
Life of this patent
Estimating the term…
Abstract
A stirrer for mixing mortar, joint compound and other viscous liquids. The stirrer includes a shaft having a fitting at its upper end for insertion into the chuck of a drill motor, or like device, and a pair of blades at its lower end. The blades are formed of stiff metallic strips which intersect each other at their respective midpoints. At their point of intersection, the blades are secured to the lower end of the shaft thereby defining upper blade surfaces adjacent the shaft and lower blade surfaces remote therefrom. The ends of the blades are provided with a semicircular shape and the lower blade surfaces adjacent thereto are secured to the shaft at a point remote from its lower end.
Claims12
A stirrer, comprising:
- a shaft having a upper end and a lower end;
- a first blade formed from an elongated strip of material having opposed ends, an upper surface and a lower surface;
- said lower end of said shaft being secured to said upper surface of said first blade;
- and,
- said lower surface of said first blade, proximate said opposed ends thereof, being secured to said shaft remote from said lower end.
A stirrer, comprising:
- a shaft having an upper end and a lower end;
- a first elongated strip having opposed ends, said first elongated strip being secured at a point midway between the opposed ends thereof to said lower end of said shaft, the opposed ends of said first elongated strip being turned inwardly upon themselves to form a pair of first appending loops adjacent said shaft, and the opposed ends of said first elongated strip being secured to said shaft remote from the lower end thereof;
- and,
- each of said first appending loops including:
- a flat bottom portion extending orthogonally from said shaft, a flat side portion extending parallel to said shaft, and two curved portions with the same radius of curvature connecting, respectively, the top and bottom of said flat side portion to said shaft and said flat bottom portion.
A stirrer, comprising:
- a shaft having an upper end and a lower end;
- and, a first mixing blade including:
- a first bottom portion secured to said lower end of said shaft, said first bottom portion being flat and oriented orthogonally to said shaft, said first bottom portion having opposed ends each being located a first predetermined distance from said shaft;
- a pair of first side portions integral with said first bottom portion, each of said first side portions extending upwardly from one of said opposed ends of said first bottom portion, each of said first side portions having a flat segment oriented parallel to said shaft and located at twice said first predetermined distance from said shaft;
- and,
- a pair of first semicircular portions integral with said pair of first side portions, each of said first semicircular portions connecting the top of one of said first side portions with said shaft at a point remote from the lower end thereof.
Dependencies are inferred from the claim text.