Patents Assigned to Eco-Safe Technologies, L.L.C.
  • Patent number: 7053040
    Abstract: A solid cleaning composition and method of manufacture are disclosed, which provide a long-term, solid cartridge made of cleaning agents and a solubility limiting agent for controlling an equilibrium concentration of the composition in a solvent, such as water. In use, the cleaning agents are dissolved only to a predetermined concentration needed for a single dose of a cleaning appliance, such as a clothes washing machine. The solid cleaning composition may be cyclically exposed to water. Controlled dissolution of the cleaning composition releases a desired quantity of cleaning agents in each cleaning cycle. The use of potassium silicate as a solubility controlling compound permits manufacture of the cleaning composition at ambient temperatures and pressures. The cleaning composition may be molded or cast into a desirable shape for controlling surface area.
    Type: Grant
    Filed: February 10, 2004
    Date of Patent: May 30, 2006
    Assignee: Eco-Safe Technologies, L.L.C.
    Inventor: Eddie L. Caruthers, Jr.
  • Patent number: 6689276
    Abstract: An apparatus, method, and composition provide a long-term, solid cartridge made of cleaning agents mixed at an equilibrium concentration with a solubility limiting agent for controlling an equilibrium concentration of the composition in a solvent, such as water, for example. In use, the cleaning agents are dissolved only to a predetermined concentration needed for a single dose of a cleaning appliance, such as a clothes washing machine, for example. The apparatus may be configured to cyclically expose the solid cartridge to the solvent. A dosing amount of the solvent dissolves a pre-determined concentration of cleaning agents, controlled by the solubility limiting agent. The apparatus discharges the dose of cleaning agent to a cleaning appliance, and readies itself again by dissolving a dose of cleaning agent from a surface of the solid cartridge into the solvent.
    Type: Grant
    Filed: May 13, 2002
    Date of Patent: February 10, 2004
    Assignee: Eco-Safe Technologies, L.L.C.
    Inventor: Eddie Lee Caruthers, Jr.