Patents by Inventor Charles J. Latta

Charles J. Latta has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 6063206
    Abstract: Compositions and methods are provided for cleaning and de-oiling metal parts and then degrading the removed oils or other organic compounds in an environmentally-friendly manner. The compositions generally contain surfactants to remove the oils and enzymes to degrade the oils. Generally, both aliphatic and aromatic compounds normally present in standard oils, lubricants, cutting oils, and greases are removed from the metal parts (i.e., "solubilized") by surfactants (although the enzymes may also assist in this process) and then ultimately broken down into relatively short-chain fatty acids by enzymes, both processes being carried out in an aqueous medium. The surfactants include (a) one or more alkylphenol ethoxylates; (b) one or more alkaline metal salts of an alkane sulfonic acid; and (c) one or more alkanolamines in aqueous solution. Suitable enzymes include monomethanoxigenase, alcoholdehydrogenase, and aldehydehydrogenase.
    Type: Grant
    Filed: November 17, 1998
    Date of Patent: May 16, 2000
    Assignee: C. J. Latta & Associates
    Inventor: Charles J. Latta
  • Patent number: 5525255
    Abstract: A safe and effective, neutral, non-toxic cleaning agent composition containing a surfactant, nonylphenol ethoxylate, and a wetting agent alkane sulfonate, for rapidly and economically removing oils and greases. The composition is safe in handling, and enables more rapid oil and grease removal than prior art cleaners. The composition is aqueous based, and therefore more environmentally safe and able to be used in conjunction with biodegradation systems without detrimentally effecting microorganisms performing the breakdown of waste.
    Type: Grant
    Filed: April 28, 1995
    Date of Patent: June 11, 1996
    Inventors: David R. Leadingham, Charles J. Latta
  • Patent number: 4908168
    Abstract: Material is supplied to a mold by direct application of gas pressure to a liquid material. A method for the shaping of at least two different synthetic resinous materials by providing a predetermined quantity of up to about 100 cm.sup.3 of a first material in a first material reservoir and a second material in a second material reservoir, the first and second material reservoirs each being in communication with a discharge line having a sufficiently narrow inner diameter such that each reactive quantity may, when propelled by sufficient gas pressure, be propelled in plug flow and each discharge line being in communication with a mold; introducing into each of the first and second gas reservoirs a predetermined volume of a gas at predetermined gas pressures sufficient to propel each quantity of material as turbulently flowing plug into the mold.
    Type: Grant
    Filed: February 25, 1988
    Date of Patent: March 13, 1990
    Assignee: The Dow Chemical Company
    Inventors: Theodore E. Miller, Jr., Tonja R. Sutton, Charles J. Latta