Patents by Inventor F. Leon

F. Leon 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: 7866679
    Abstract: The trash can cart apparatus provides a frame which selectively encloses two separate trash cans, allowing a user to use different sizes of trash cans, selectively. Each individually pivoted keeper is u-shaped and selectively covers each can. Each keeper further comprises a screen to prevent access to trash can lids, especially by animals, each keeper positionably lockable, and requiring the latch mechanism to be manually released prior to pivot. Each can if fully secured by frame and keepers only. The multiple lower laterals provide that any can is supported by at least two laterals. The apparatus needs only two wheels. The wheels are positioned at the lower front and the pivoting handle at the upper front. A user need only grasp the handle to pivot the mass of the apparatus, along with any trash cans.
    Type: Grant
    Filed: October 21, 2008
    Date of Patent: January 11, 2011
    Inventor: Daniel F. Leon
  • Publication number: 20080276364
    Abstract: A manufactured shower pan includes a drain, a molded waterproof liner having a properly sloped floor and extending side walls, a honeycomb liner support, a solid curb system and a processed dry mud pack to provide aeration and drainage connected to the weep system in the drain.
    Type: Application
    Filed: May 7, 2008
    Publication date: November 13, 2008
    Inventors: James S. Barro, F. Leon Peters
  • Patent number: 7047612
    Abstract: This invention relates generally to a method for repairing a casting, and more specifically to a method of repairing a casting by pouring melted filler material into a damaged portion of the original casting. Damaged cast metal components, such as a cylinder head of an internal combustion engine are repaired by preheating the component to a first preheat temperature. The damaged area of the casting is then heated to a higher temperature using a torch and melted filler material is poured into the casting. The torch is used to maintain the temperature of the melted material for thirty seconds to two minutes. The temperature of the filler material is then cooled using compressed air.
    Type: Grant
    Filed: May 2, 2003
    Date of Patent: May 23, 2006
    Assignee: Caterpillar Inc.
    Inventors: Michael D. Bridges, Leonid Chuzhoy, Christopher A Kinney, Jose F. Leon Torres, Stephen E Post, Robert E. Sharp
  • Publication number: 20060021070
    Abstract: Novel cultured inner cell mass (CICM) cells, and cell lines, derived from ungulates, in particular, pigs and cows, and methods for their preparation are provided. The subject CICMs possess similar morphology and express cell markers identically or substantially similarly to ICMs of undifferentiated developing embryos for prolonged culturing periods. Heterologous DNA is inserted into the subject CICM cells and cell lines so as produce transgenic CICM cell which are introduced into non-human fertilized embryos to produce transgenic chimeric embryos. The transgenic chimeric embryos are transferred into recipient females where they are permitted to develop into transgenic chimeric fetuses. Recipient females give birth to transgenic chimeric animals which are capable of transmitting the heterologous DNA to their progeny. Transgenic CICM cells are also used to produce cloned transgenic embryos, fetuses and offspring.
    Type: Application
    Filed: December 28, 2004
    Publication date: January 26, 2006
    Applicant: University of Massachusetts, A public Institution of Higher Education of the Commonwealth of MA
    Inventors: Steven Stice, Jose Cibelli, James Robl, Paul Golueke, F. Leon, D. Jerry
  • Publication number: 20050193435
    Abstract: A culture system for maintaining avian PGCs for long periods in tissue culture is provided. This culture system uses LIF, bFGF, IGF and SCF. The resultant PGCs are useful for the production of transgenic and chimeric avians, in particular, chickens or turkeys.
    Type: Application
    Filed: September 3, 2004
    Publication date: September 1, 2005
    Applicant: University of Massachusetts
    Inventors: James Robl, Steven Stice, D. Jerry, F. Leon, Catherine Blackwell, Xiu Gao
  • Patent number: 6923746
    Abstract: To improve tracking, an exercise treadmill is provided with a frame including molded plastic pulleys, having an integral gear belt sprocket, an endless belt extending around the pulleys and a motor operatively connected to the rear pulley to drive the belt. The pulleys are molded out of plastic and have a diameter of approximately nine inches. A mold and method for producing large diameter treadmill pulleys having an integrally molded sprocket are also disclosed. A deck underneath the running surface of the belt is supported by resilient members. A positive lateral belt tracking mechanism is used to correct the lateral position of the belt. A belt position sensor mechanism is used in combination with a front pulley pivoting mechanism to maintain the belt in the desired lateral position on the pulleys. The exercise treadmill also includes a lift mechanism with an internally threaded sleeve engaged to vertically aligned nonrotating screws. A user display of foot impact force on the belt is also provided.
    Type: Grant
    Filed: December 6, 1999
    Date of Patent: August 2, 2005
    Assignee: Brunswick Corporation
    Inventors: Richard E. Skowronski, Kenneth F. Lantz, Jose A. Leon, Donald James Alexander, George Kolomayets, Vincent C. Adams, Eugene B. Szymczak, Edward W. Minnich, Wade K. Totzke, Tomas F. Leon
  • Publication number: 20040216295
    Abstract: This invention relates generally to a method for repairing a casting, and more specifically to a method of repairing a casting by pouring melted filler material into a damaged portion of the original casting. Damaged cast metal components, such as a cylinder head of an internal combustion engine are repaired by preheating the component to a first preheat temperature. The damaged area of the casting is then heated to a higher temperature using a torch and melted filler material is poured into the casting. The torch is used to maintain the temperature of the melted material for thirty seconds to two minutes. The temperature of the filler material is then cooled using compressed air.
    Type: Application
    Filed: May 2, 2003
    Publication date: November 4, 2004
    Inventors: Michael D. Bridges, Leonid Chuzhoy, Christopher A. Kinney, Jose F. Leon Torres, Stephen E. Post, Robert E. Sharp
  • Patent number: 6436008
    Abstract: To improve tracking, an exercise treadmill is provided with a frame including molded plastic pulleys, having an integral gear belt sprocket, an endless belt extending around the pulleys and a motor operatively connected to the rear pulley to drive the belt. The pulleys are molded out of plastic and have a diameter of approximately nine inches. A mold and method for producing large diameter treadmill pulleys having an integrally molded sprocket are also disclosed. A deck underneath the running surface of the belt is supported by resilient members. A positive lateral belt tracking mechanism is used to correct the lateral position of the belt. A belt position sensor mechanism is used in combination with a front pulley pivoting mechanism to maintain the belt in the desired lateral position on the pulleys. The exercise treadmill also includes a lift mechanism with an internally threaded sleeve engaged to vertically aligned nonrotating screws. A user display of foot impact force on the belt is also provided.
    Type: Grant
    Filed: November 28, 2000
    Date of Patent: August 20, 2002
    Assignee: Brunswick Corporation
    Inventors: Richard E. Skowronski, Kenneth F. Lantz, Tomas F. Leon, Donald James Alexander, George Kolomayets, Vincent C. Adams, Eugene B. Szymczak, Edward W. Minnich, Wade K. Totzke
  • Patent number: 6095951
    Abstract: To improve tracking, an exercise treadmill is provided with a frame including molded plastic pulleys, having an integral gear belt sprocket, an endless belt extending around the pulleys and a motor operatively connected to the rear pulley to drive the belt. The pulleys are molded out of plastic and have a diameter of approximately nine inches. A mold and method for producing large diameter treadmill pulleys having an integrally molded sprocket are also disclosed. A deck underneath the running surface of the belt is supported by resilient members. A positive lateral belt tracking mechanism is used to correct the lateral position of the belt. A belt position sensor mechanism is used in combination with a front pulley pivoting mechanism to maintain the belt in the desired lateral position on the pulleys. The exercise treadmill also includes a lift mechanism with an internally threaded sleeve engaged to vertically aligned nonrotating screws. A user display of foot impact force on the belt is also provided.
    Type: Grant
    Filed: May 7, 1998
    Date of Patent: August 1, 2000
    Assignee: Brunswick Corporation
    Inventors: Richard E. Skowronski, Kenneth F. Lantz, Tomas F. Leon, deceased, Donald James Alexander, George Kolomayets, Vincent C. Adams, Eugene B. Szymczak, Edward W. Minnich, Wade K. Totzke
  • Patent number: 5752897
    Abstract: To improve tracking, an exercise treadmill is provided with a frame including molded plastic pulleys, having an integral gear belt sprocket, an endless belt extending around the pulleys and a motor operatively connected to the rear pulley to drive the belt. The pulleys are molded out of plastic and have a diameter of approximately nine inches. A mold and method for producing large diameter treadmill pulleys having an integrally molded sprocket are also disclosed. A deck underneath the running surface of the belt is supported by resilient members. A positive lateral belt tracking mechanism is used to correct the lateral position of the belt. A belt position sensor mechanism is used in combination with a front pulley pivoting mechanism to maintain the belt in the desired lateral position on the pulleys. The exercise treadmill also includes a lift mechanism with an internally threaded sleeve engaged to vertically aligned nonrotating screws. A user display of foot impact force on the belt is also provided.
    Type: Grant
    Filed: December 18, 1995
    Date of Patent: May 19, 1998
    Assignee: Brunswick Corporation
    Inventors: Richard E. Skowronski, Kenneth F. Lantz, Tomas F. Leon, deceased, Donald James Alexander, George Kolomayets, Vincent C. Adams, Eugene B. Szymczak, Edward W. Minnich, Wade K. Totzke
  • Patent number: 5599259
    Abstract: To improve tracking, an exercise treadmill is provided with a frame including molded plastic pulleys, having an integral gear belt sprocket, an endless belt extending around the pulleys and a motor operatively connected to the rear pulley to drive the belt. The pulleys are molded out of plastic and have a diameter of approximately nine inches. A mold and method for producing large diameter treadmill pulleys having an integrally molded sprocket are also disclosed. A deck underneath the running surface of the belt is supported by resilient members. A positive lateral belt tracking mechanism is used to correct the lateral position of the belt. A belt position sensor mechanism is used in combination with a front pulley pivoting mechanism to maintain the belt in the desired lateral position on the pulleys. The exercise treadmill also includes a lift mechanism with an internally threaded sleeve engaged to vertically aligned nonrotating screws. A user display of foot impact force on the belt is also provided.
    Type: Grant
    Filed: November 13, 1995
    Date of Patent: February 4, 1997
    Assignee: Life Fitness
    Inventors: Richard E. Skowronski, Kenneth F. Lantz, Tomas F. Leon, deceased, Donald J. Alexander, George Kolomayets, Vincent C. Adams, Eugene B. Szymczak, Edward V. Minnich, Wade K. Totzke
  • Patent number: 5510208
    Abstract: A battery cell sleeve assembly comprises first and second cylindrical sleeves contiguously joined and defining an internal recess for receiving a battery cell. The first sleeve is comprised of a plurality of substantially unidirectional longitudinally extending first elongated fibers of high conductivity, low density, material embedded in an epoxy matrix. The second sleeve is comprised of a plurality of second and third elongated fibers of high conductivity, low density, material also embedded in an epoxy matrix, the second and third fibers being substantially unidirectional extending transverse of the first fibers, the second and third fibers extending in mutually transverse directions.
    Type: Grant
    Filed: September 28, 1994
    Date of Patent: April 23, 1996
    Assignee: Space Systems/Loral, Inc.
    Inventors: John C. Hall, Juan F. Leon
  • Patent number: 5484362
    Abstract: To improve tracking, an exercise treadmill is provided with a frame including molded plastic pulleys, having an integral gear belt sprocket, an endless belt extending around the pulleys and a motor operatively connected to the rear pulley to drive the belt. The pulleys are molded out of plastic and have a diameter of approximately nine inches. A mold and method for producing large diameter treadmill pulleys having an integrally molded sprocket are also disclosed. A deck underneath the running surface of the belt is supported by resilient members. A positive lateral belt tracking mechanism is used to correct the lateral position of the belt. A belt position sensor mechanism is used in combination with a front pulley pivoting mechanism to maintain the belt in the desired lateral position on the pulleys. The exercise treadmill also includes a lift mechanism with an internally threaded sleeve engaged to vertically aligned nonrotating screws. A user display of foot impact force on the belt is also provided.
    Type: Grant
    Filed: June 3, 1994
    Date of Patent: January 16, 1996
    Assignee: Life Fitness
    Inventors: Richard E. Skowronski, Kenneth F. Lantz, Tomas F. Leon, deceased, Donald J. Alexander, George Kolomayets, Vincent C. Adams, Eugene B. Szymczak, Edward V. Minnich, Wade K. Totzke
  • Patent number: 5403252
    Abstract: A climbing exercise apparatus is provided having a frame on which two pedals are pivotally mounted to provide a user with a vertically reciprocating exercise movement, and a control panel for user input and output. A dynamic break, alternator or the like applies a variable level of resistance (via a suitable transmission) against the user's movement. The resistance varies over time in accordance with a control signal generated by a computer. The value of the control signal is independent of the rate at which the user steps. A display successively displays images of hills. Each hill is associated with one of the series of values, and that value is graphically represented as part of or in visual association with the hill image.
    Type: Grant
    Filed: November 3, 1992
    Date of Patent: April 4, 1995
    Assignee: Life Fitness
    Inventors: Tomas F. Leon, Robert L. Hood, Robert E. Quast, David J. Thum, Emil S. Golen
  • Patent number: 5382207
    Abstract: To improve tracking, an exercise treadmill is provided with a frame including molded plastic pulleys, having an integral gear belt sprocket, an endless belt extending around the pulleys and a motor operatively connected to the rear pulley to drive the belt. The pulleys are molded out of plastic and have a diameter of approximately nine inches. A mold and method for producing large diameter treadmill pulleys having an integrally molded sprocket are also disclosed. A deck underneath the running surface of the belt is supported by resilient members. A positive lateral belt tracking mechanism is used to correct the lateral position of the belt. A belt position sensor mechanism is used in combination with a front pulley pivoting mechanism to maintain the belt in the desired lateral position on the pulleys. The exercise treadmill also includes a lift mechanism with an internally threaded sleeve engaged to vertically aligned nonrotating screws. A user display of foot impact force on the belt is also provided.
    Type: Grant
    Filed: April 17, 1991
    Date of Patent: January 17, 1995
    Assignee: Life Fitness
    Inventors: Richard E. Skowronski, Kenneth F. Lantz, Tomas F. Leon, Donald J. Alexander, George Kolomayets, Vincent C. Adams, Eugene B. Szymczak
  • Patent number: 5209788
    Abstract: This application relates to a water-based passivating composition comprising:(a) an amino compound which is selected from the group consisting of an amino acid and salts thereof and an amino alcohol and salt thereof, and(b) a metal compound selected from a group IIIB transition metal compound, a group IVB transition metal compound and a rare earth metal compound.
    Type: Grant
    Filed: November 21, 1990
    Date of Patent: May 11, 1993
    Assignee: PPG Industries, Inc.
    Inventors: Mark W. McMillen, F. Leon Bergeron
  • Patent number: 5189946
    Abstract: A self-draining cooking pot, such as a pasta pot, which facilitates the draining of liquid. A handle assembly includes a valve module which is readily-removable to facilitate cleaning, and a strainer to block the passage of food into the valve while permitting the flow of liquid. Included as part of the removable valve module is a sliding shaft with a resilient sealing member mounted on one end, and the sealing member is spring-biased against a valve seat. The handle assembly also includes a trigger lever for manual actuation of the valve. To prevent inadvertent draining of the pot, a lock-closed device engages the trigger lever until released by a pushbutton. To facilitate removal of the readily-removable valve module, a similar lock-open device is provided for the sliding shaft.
    Type: Grant
    Filed: September 16, 1992
    Date of Patent: March 2, 1993
    Inventor: John F. Leon
  • Patent number: 4832226
    Abstract: A self-draining pot apparatus is set forth wherein a cooking vessel is formed with a pivotally and normally biased closure overlying, in a sealing arrangement, a plurality of openings enabling draining of fluid contained in said vessel during a cooking procedure. A removable screen oriented at an elevated position within said vessel enables steaming of various foods, such as vegetables, positionable on said screen. A finger lever positioned within a handle integrally secured to said vessel has secured thereto a flexible tether engaging said closure to enable opening of said closure and draining of the fluid within said vessel.
    Type: Grant
    Filed: April 26, 1988
    Date of Patent: May 23, 1989
    Inventor: John F. Leon
  • Patent number: 4145281
    Abstract: Process for the removal of chromium and zinc corrosion inhibitor compounds from cooling tower blowdown streams, comprising contacting the water of said streams first with a weakly basic anion exchange resin and then with a weakly acidic cation exchange resin.
    Type: Grant
    Filed: December 20, 1976
    Date of Patent: March 20, 1979
    Assignee: Monsanto Company
    Inventors: Michael F. Weishaar, F. Leon Ballard