Container holder with sink drain attachment

A method for assembling an attach means of a container holder to a lower portion of a main body of said container holder to form a combination and for rigidly attaching said combination to a sink drain opening, wherein the container holder has an essentially vertical main body and said lower portion has a cylindrical main body base section, a cylindrical pivot opening and a cylindrical cam surface, said container holder further includes a container clamping means to secure a container with lid closure to an upper portion of said main body;

• and said attach means includes a pivoting lower half having a pivot shaft, a cam lever pivot shaft and a cylindrical pivoting base section;
• said attach means further includes a cam lever having a pivot hole, an eccentric cam surface, and a cam lever handle;
• said method comprising the steps of:
• attaching said cam lever to said pivoting lower half by inserting said cam lever pivot shaft in said cam lever pivot hole;
• attaching said pivoting lower half to said main body base section by inserting said pivot shaft into said pivot shaft opening, with said eccentric cam surface contacting said main body cam surface;
• placing the combination of said main body base section and said pivoting base section into said sink drain opening;
• and
• rotating said cam lever to expend a combined perimeter of said combination to fit tightly in said sink drain opening.

A method for assembling a clamping means of a container holder to an upper portion of a main body of said container holder to form a combination and for using said combination to immobilize a container with lid closure, wherein the container holder has an essentially vertical main body and said upper portion has an essentially flat horizontal container positioning surface traversed by a clamping jaws groove housing a positioning slot;

• said container holder further includes an attach means for rigidly attaching a lower portion of said main body to a skin drain opening;
• and said clamping means includes a pair of equal and opposite clamping jaws, each said clamping jaw having an inward curved jaw surface, a slanted bearing surface matching the geometry of said clamping jaws groove, and a female screw thread contour, with one clamping jaw having a right-hand thread contour and another clamping jaw having a left-hand thread contour;
• said clamping means further includes a screw shaft of the same length as said clamping jaw groove, with male screw threads matching said female screw threads of said pair of clamping jaws thread contours, with one half said screw shaft having right-hand threads and another half having left-hand threads, the shaft halves being separated by a positioning groove, said screw shaft having a provision for attaching a crank handle at one shaft end;
• said method comprising the steps of:
• placing said screw shaft into said contoured groove with said shaft positioning groove located within said groove positioning slots;
• placing said pair of clamping jaws at extremities of said screw shaft, with said left-hand female screw threads contour placed at said left-hand male thread shaft extremity, and said right-hand female screw thread contour placed at said right-hand male thread shaft extremity;
• rotating said screw shaft to feed said clamping jaws simultaneously onto said male threads of said screw shaft, at the same time advancing said clamping jaws slanted bearing surfaces within said clamping jaws groove;
• attaching said crank handle to said one shaft end and placing said container on a center of said container positioning surface;
• and
• rotating said crank handle to rotate said screw shaft to converge said clamping jaws around said container until said container is immobilized in place.