Patents Represented by Law Firm Baker & Kirk
  • Patent number: 4856545
    Abstract: An essentially self-contained mobile tube cleaning machine which is remotely operable so that there is no need for operating personnel to be in close proximity to cleaning nozzles or other high pressure lines during tube cleaning operations. As a consequence, significantly higher water pressures and significantly higher water flow rates can be utilized thereby not only accelerating the rate of cleaning but also the efficiency and the effectiveness of the cleaning operation. Through the provision of a nozzle head at the end of an articulatable boom, it is possible to adjust the location of the nozzle through movement of the boom in order to clean the face of a tube bundle, the shell side of a tube bundle and the interior of the tubes themselves.
    Type: Grant
    Filed: November 7, 1988
    Date of Patent: August 15, 1989
    Assignee: Serv-Tech, Inc.
    Inventors: Richard W. Krajicek, Robert R. Cradeur
  • Patent number: 4856047
    Abstract: A remote telemetry unit (RTU) for use in an automated telemetry paging system for providing remote pager notification of changes in selected operating parameters measured at a specific site location. The selected parameters and the unacceptable changes therein are provided in the form of a plurality of electrical status signals each representative of one of the selected parameters. The RTU includes a programmed microprocessor, including data input/output circuits, a memory circuit, a central processing unit (CPU) and a real time clock. The RTU also includes a status signal receiving circuit for receiving and electronically isolating and digitally shaping the received status signals. An interrogation circuit controlled by the CPU scans the digital status signals, and a discrimination circuit controlled by the CPU reads the digital status signals and determines if a valid deviated or changed status signal is present.
    Type: Grant
    Filed: April 29, 1987
    Date of Patent: August 8, 1989
    Assignee: BD Systems, Inc.
    Inventor: James R. Saunders
  • Patent number: 4844920
    Abstract: A fried food article having improved crispness. Inner and outer pastry shells are provided, the inner shell sealedly containing a desired filling, and the outer shell being disposed thereabouts. Means are provided in the outer shell design for decreasing deep frying time to achieve desired outer shell crispness while avoiding undesirable drying out of the filling. In one embodiment, such means takes the form of a plurality of apertures in the outer shell to facilitate frying oil substantially contacting both the inner and outer surfaces of the outer shell. In an alternate embodiment, spacing means are provided alone or in combination with the apertures providing heat insulation between the inner and outer shells in the former case, and additional space for hot oil in the latter case, both to enance the resultant crispness of the food article upon frying.
    Type: Grant
    Filed: June 1, 1987
    Date of Patent: July 4, 1989
    Inventor: Jing-Yau Chung
  • Patent number: 4753722
    Abstract: An improved method of treating streams having mercaptan or mercaptan-based compounds therein particularly adapted for the processes of sweetening sour hydrocarbons and regenerating spent caustic solutions is described. The invention comprises contacting a first stream having the mercaptan or mercaptan-based compounds therein with a second stream in the presence of effective amounts of a nitrogen-based promoter to promote the extraction and/or the catalytic oxidation of the mercaptan compounds therein. The invention herein disclosed and described is applicable in a wide variety of apparatus and processes adapted for sweetening and regeneration operations.
    Type: Grant
    Filed: June 17, 1986
    Date of Patent: June 28, 1988
    Assignee: Merichem Company
    Inventors: Binh N. Le, Gilbert D. Veasey
  • Patent number: 4750984
    Abstract: A method of producing high quality, homogenous asphalt comprising the steps of mixing and heating a hydrocarbon feedstock not normally suited for asphalt production with elemental sulfur and agitating the resulting mixture. A halide catalyst may be added to the mixture to promote the reaction of the hydrocarbon feedstock with the sulfur. If desired, the agitated mixture may be air blown in any conventional manner to increase its hardness.
    Type: Grant
    Filed: November 18, 1985
    Date of Patent: June 14, 1988
    Inventor: Clifford J. Ott
  • Patent number: 4746494
    Abstract: An apparatus and process where a sour hydrocarbon distillate stream is treated in two oxidation zones within the same reaction vessel to oxidize mercaptans. The initial treatment is in the presence of a fiber bundle and the subsequent treatment over a bed of supported oxidation catalyst which can be in an annular arrangement surrounding a portion of the fiber bundle.
    Type: Grant
    Filed: July 21, 1986
    Date of Patent: May 24, 1988
    Assignee: Merichem Company
    Inventors: Ralph E. Maple, Felipe J. Suarez
  • Patent number: 4688959
    Abstract: An apparatus is described for applying a liquid to treat the nap and backing of a rug or carpet. The applicator having a cylindrical body enclosing a hollow reservoir with teeth extending from inside the reservoir outwardly through the body such that the nap of the rug is penetrated to apply liquid to the backing of the rug. The teeth and, optionally, the cylindrical body are porous, allowing the treating liquid to migrate from the reservoir to the surface to be treated as the apparatus is moved across the surfaces.
    Type: Grant
    Filed: October 2, 1985
    Date of Patent: August 25, 1987
    Assignee: Texas Romec, Inc.
    Inventors: Munson R. Snedeker, Rodney J. O'Connor
  • Patent number: 4675100
    Abstract: An apparatus and process is described whereby a sour hydrocarbon distillate stream is treated in two oxidation zones within the same reaction vessel to oxidize mercaptans. The initial treatment is in the presence of a fiber bundle and the subsequent treatment over a bed of supported oxidation catalyst.
    Type: Grant
    Filed: May 30, 1985
    Date of Patent: June 23, 1987
    Assignee: Merichem Company
    Inventors: Ralph E. Maple, Felipe J. Suarez
  • Patent number: 4585018
    Abstract: A comb is disclosed that may be used for applying liquid to both scalp and hair and which may is effective regardless of the orientation of the comb. The liquid is retained in the comb in a porous wick-like material and the liquid dispensing teeth are a porous wick-like material so that capillary action ensures a continuous, regulated flow of liquid regardless of the orientation of the comb.
    Type: Grant
    Filed: March 19, 1984
    Date of Patent: April 29, 1986
    Assignee: Texas Romec, Inc.
    Inventor: Rodney J. O'Connor
  • Patent number: 4540159
    Abstract: A hydropneumatic cable tensioner is comprised of an enclosed cylinder featuring a plurality of annular chambers. A fixed cable sheave is mounted to one end of the cylinder. A movable cable sheave is mounted to a piston rod connected to a piston which reciprocates in the innermost or piston bore chamber of the cylinder. Regulated compressed gas is connected to the outer chamber of the cylinder thereby exerting high pressure forces on oil found in the middle or high pressure oil chamber of the cylinder. Pressurized oil forces a piston to move outwardly thereby increasing the distance between the two sheaves and tensioning a cable. Restriction means within the piston bore chamber regulate movement of the piston and prevent uncontrolled acceleration should a cable failure occur.
    Type: Grant
    Filed: July 22, 1983
    Date of Patent: September 10, 1985
    Assignee: Retsco, Inc.
    Inventor: Larry B. Jordan
  • Patent number: D284412
    Type: Grant
    Filed: March 19, 1984
    Date of Patent: June 24, 1986
    Assignee: Texas Romec, Inc.
    Inventors: Mark A. O'Connor, Rodney J. O'Connor, John R. Hall
  • Patent number: D293504
    Type: Grant
    Filed: June 7, 1984
    Date of Patent: January 5, 1988
    Assignee: Encon Manufacturing, Inc.
    Inventors: Paul B. Specht, Charles D. Hewitt
  • Patent number: D304703
    Type: Grant
    Filed: February 6, 1986
    Date of Patent: November 21, 1989
    Inventor: Michael Phillips