The Gillette Company

Moldcool International LLC

Kenneth E Johnson

Alexander Timothy Chenvainu

Alejandro Carlos Lee

Thomas Aurele Christman

William Ralph Brown, Jr

William C Carson

Charles P Kiricoples

Helge Zimmet

Cardy Louis

For controlling temperature in the molding of plastics, metal, ceramic, or die-casting, a circulator supporting a molding machine includes a fixed displacement pump driven by an electronic servo motor for volumetric metering of thermal fluid to or from the molding machine. A pre-set or dynamically controlled volume and flow rate profile matches the heating and cooling requirement of a molding machine and process. Volumetric metering may be based on parameters such as time, machine cycle status, temperature, pressure, and/or flow rate. Fluid may be circulated through the mold at positive or negative pressure at fixed, variable, or pulsed flow. The supply side in a fluid loop may be restricted so as to cause a pressure drop in or upstream of the mold, die or barrel, and seed bubbles may be injected into the fluid flow to excite vaporization and lowering of the fluid temperature.

Method and apparatus for controlling the temperature of molds, dies, and injection barrels using fluid media

A method and apparatus are disclosed for managing thermal energy transfer between a mold, die or cavity and a thermal transfer fluid. The thermal energy being exchanged with the mold, die or cavity is calculated in real time as a function of the temperature differential between inlet and outlet fluid temperatures, the volumetric rate of fluid delivery, and known characteristics of the fluid. The rate of thermal energy exchange is controlled by varying the fluid delivery rate in accordance with a desired thermal energy exchange profile.

Method and apparatus for thermally controlling a mold, die, or injection barrel

Methods of manufacturing razor cartridges are provided. One method includes loading a support portion of a supported blade into an elongated blade slot defined by a core member, the core member being configured to define a portion of a molding cavity defining the shape of the cartridge housing; and delivering a resin to the molding cavity to form the housing and capture a portion of the blade in the resin. In another method, a plurality of razor cartridges are manufactured substantially simultaneously by (a) removably mounting each blade on a core member; (b) placing each core member in a molding cavity; and (c) delivering a resin to the molding cavities to form at least a portion of the cartridge housing and capture a portion of the blade in the resin. In other methods a flexible region is provided adjacent the blade ends by: (a) delivering a compliant material to the molding cavity to capture at least the ends of the blade; (b) placing the blade and molded compliant material in a second molding cavity defining the shape of the molded housing; and (c) delivering a resin to the second molding cavity to form the molded housing, or by (a) providing coring areas in the molding cavity beyond each of the blade ends, configured to provide a flexible region of plastic adjacent each blade end in the finished product; and (b) delivering a resin to the molding cavity. In some methods, the resin is delivered through a gate that is positioned so that a substantial portion of the resin flow goes by the blade ends before the molding cavity is filled.

Insert molding razor cartridges

Shaving systems are provided including an elongated blade and a plastic housing, the ends of the blade being captured in the plastic housing.

Growing community of inventors

Hollis, NH, United States of America

Kenneth E Johnson