Patents by Inventor John Porter

John Porter 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: 6786031
    Abstract: A lawnmower comprising a chassis and a mower deck movable with respect to the chassis. A cylinder assembly is mounted to the chassis, and includes an actuating cylinder, and a piston shaft selectively extendable and retractable with respect to the cylinder under the influence of fluid pressure within the cylinder. A deck lift assembly is interconnected to the chassis and the mower deck for adjusting the height of the mower deck with respect to the chassis. The deck lift assembly includes a pivot member pivotally connected to the chassis. A jack is removably coupled to the pivot member, such that the chassis is raised and lowered in response to movement of the piston shaft with respect to the cylinder. The jack utilizes the existing hydraulic system and cylinder assembly of the lawnmower to raise the lawnmower with respect to the ground.
    Type: Grant
    Filed: October 4, 2002
    Date of Patent: September 7, 2004
    Assignee: Ariens Company
    Inventors: Kari Ann Kalista, Daniel J. Gindt, Brian K. Gloudemans, John Porter, Robert Busse, Paul A. Schroeder
  • Patent number: 6742166
    Abstract: A system and method for automatic verification of a test plan for a semiconductor device. The device is specified by a hardware description language (HDL) model or a formal description language model derived from the HDL model. A test plan tool and database are provided to capture test item definitions and identifications and a monitor generator is provided to generate monitors for detecting functional coverage during verification. An evaluator is provided to compare verification-events with test-plan items, to determine test item completeness and to update the test plan database.
    Type: Grant
    Filed: July 20, 2001
    Date of Patent: May 25, 2004
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Harry D. Foster, Robert John Porter, Nathan Dirk Zelle
  • Publication number: 20040065071
    Abstract: A lawnmower comprising a chassis and a mower deck movable with respect to the chassis. A cylinder assembly is mounted to said chassis, and includes an actuating cylinder, and a piston shaft selectively extendable and retractable with respect to the cylinder under the influence of fluid pressure within the cylinder. A deck lift assembly is interconnected to the chassis and the mower deck for adjusting the height of the mower deck with respect to the chassis. The deck lift assembly includes a pivot member pivotally connected to the chassis. A jack is removably coupled to the pivot member, such that the chassis is raised and lowered in response to movement of the piston shaft with respect to the cylinder. The jack utilizes the existing hydraulic system and cylinder assembly of the lawnmower to raise the lawnmower with respect to the ground.
    Type: Application
    Filed: October 4, 2002
    Publication date: April 8, 2004
    Applicant: Ariens Company
    Inventors: Kari Ann Kalista, Daniel J. Gindt, Brian K. Gloudemans, John Porter, Robert Busse, Paul A. Schroeder
  • Publication number: 20040036027
    Abstract: A device for measuring radiation is disclosed. The device comprises optics and electronics at least partially enclosed in a housing portable by a single human being. In a preferred embodiment, the housing comprises a window to admit radiation of a desired wave length and houses optics and electronics to collect and convert admitted radiation into an electrical signal. A data processor may be disposed in the housing or exterior to the housing and may convert and store the electrical signal into an analyzed, e.g. digital, form. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.
    Type: Application
    Filed: June 13, 2003
    Publication date: February 26, 2004
    Inventors: Keith Horton, John Porter, Peter Mouginis-Mark, Clive Oppenheimer, Harold Garbeil
  • Publication number: 20030018945
    Abstract: A system and method for automatic verification of a test plan for a semiconductor device. The device is specified by a hardware description language (HDL) model or a formal description language model derived from the HDL model. A test plan tool and database are provided to capture test item definitions and identifications and a monitor generator is provided to generate monitors for detecting functional coverage during verification. An evaluator is provided to compare verification-events with test-plan items, to determine test item completeness and to update the test plan database.
    Type: Application
    Filed: July 20, 2001
    Publication date: January 23, 2003
    Inventors: Harry D. Foster, Robert John Porter, Nathan Dirk Zelle
  • Patent number: 6449143
    Abstract: An operator workstation has a worksurface and left and right upper support members extending upward from the worksurface. Multiple flat-panel display units are mounted between the support members above the level of the worksurface. The displays are mounted above one another, between the support members. Lower support members support the workstation in connection with a base mounted between the lower support members. The base has a substantially triangular cross-section, while the lower support members have a substantially triangular shape.
    Type: Grant
    Filed: February 2, 2001
    Date of Patent: September 10, 2002
    Assignee: The Foxboro Company
    Inventors: Albert Rooyakkers, John Porter
  • Publication number: 20010033934
    Abstract: An anti-reflecting film is made from a polymeric film substrate consisting of cellulose acetate, polyamide or polyester. The substrate is coated with at least two polymeric layers. An outer layer is comprised of a fluorine containing polymer. Between the outer layer and the substrate is an intermediate layer of an organometallic polymeric layer. The organometallic polymeric layer is comprised of the condensation product of a metal alkoxide and a polymer reactive with the metal oxide.
    Type: Application
    Filed: February 2, 2001
    Publication date: October 25, 2001
    Applicant: CPFILMS INC.
    Inventors: Anthony Brian Port, Elizabeth Jean Packer, Aravinda Parnandi, Richard J. Ward, Steven Allen Barth, James P. Enniss, Simon John Porter
  • Publication number: 20010007523
    Abstract: An operator workstation has a worksurface and left and right upper support members extending upward from the worksurface. Multiple flat-panel display units are mounted between the support members above the level of the worksurface. The displays are mounted above one another, between the support members. Lower support members support the workstation in connection with a base mounted between the lower support members. The base has a substantially triangular cross-section, while the lower support members have a substantially triangular shape.
    Type: Application
    Filed: February 2, 2001
    Publication date: July 12, 2001
    Applicant: The Foxboro Company
    Inventors: Albert Rooyakkers, John Porter
  • Patent number: 6245428
    Abstract: An anti-reflecting film is made from a polymeric film substrate consisting of cellulose acetate, polyamide or polyester. The substrate is coated with at least two polymeric layers. An outer layer is comprised of a fluorine containing polymer. Between the outer layer and the substrate, is an intermediate layer of an organometallic polymeric layer. The organometallic polymeric layer is comprised of the condensation product of a metal alkoxide and a polymer reactive with the metal oxide.
    Type: Grant
    Filed: June 10, 1998
    Date of Patent: June 12, 2001
    Assignee: CPFilms Inc.
    Inventors: Anthony Brian Port, Elizabeth Jean Packer, Aravinda Parnandi, Richard J. Ward, Steven Allen Barth, James P. Enniss, Simon John Porter
  • Patent number: 6212068
    Abstract: An operator workstation has a worksurface and left and right upper support members extending upward from the worksurface. Multiple flat-panel display units are mounted between the support members above the level of the worksurface. The displays are mounted above one another, between the support members. Lower support members support the workstation in connection with a base mounted between the lower support members. The base has a substantially triangular cross-section, while the lower support members have a substantially triangular shape.
    Type: Grant
    Filed: January 29, 1999
    Date of Patent: April 3, 2001
    Assignee: The Foxboro Company
    Inventors: Albert Rooyakkers, John Porter
  • Patent number: 6103944
    Abstract: Water present in a hot gaseous product stream from a reactor system A.B (FIG. 1) containing hydrogen fluoride is separated from the stream in order to eliminate a potentially corrosive combination of water and HF. The water is removed by contacting the gaseous product stream with liquid HF in a distillation column so as to obtain a bottoms product containing liquid HF and water and a top product containing dry HF and the product to be recovered. The invention encompasses the separation process, a vessel for carrying out the process (FIGS. 2 to 4), a control system for the liquid HF supply to the distillation column (FIGS. 5 and 6) and a recovery system for recovering HF employed during operation of the reactor system in different regimes employing HF as a fluorination agent, as a diluent during catalyst regeneration and/or catalyst prefluorination (FIG. 7).
    Type: Grant
    Filed: May 2, 1994
    Date of Patent: August 15, 2000
    Assignee: Imperial Chemical Industries PLC
    Inventors: Charles Brian Blake, James Malcolm Forsyth, Ann San Liow, Stephen John Adams, Ralph Jones Doy, Rowland John Porter Brierley, Jane Andrea Eileen Roberts, Brian Schofield, Neil David Shilling
  • Patent number: 5895301
    Abstract: Hand-tearable barrier laminates are provided which include a reinforcing layer having a first tensile strength laminated to flexible cellulosic web comprising open porosity and a second tensile strength which is less than the first tensile strength. The web is treated with a water-resistant polymeric resin for providing liquid water resistance to the web while permitting water vapor to pass through it. Inexpensive web materials can be substituted for polymer foam and microperforated plastic films currently employed by the housing industry.
    Type: Grant
    Filed: September 8, 1997
    Date of Patent: April 20, 1999
    Assignee: Bay Mills, Ltd.
    Inventors: John Porter, Rosalene Brunka
  • Patent number: 5881521
    Abstract: A hand-tearable barrier laminate includes a reinforcing layer having a first tensile strength. The reinforcing layer is laminated to a flexible cellulosic web. The web has open porosity and a second tensile strength which is less than the first tensile strength. The web is treated with a water-resistant polymeric resin for providing liquid water resistance to the web while permitting water vapor to pass through the web. This hand-tearable barrier laminate can be substituted for polymer foam and microperforated plastic films currently employed by the housing industry, reducing costs.
    Type: Grant
    Filed: September 8, 1997
    Date of Patent: March 16, 1999
    Assignee: Bay Mills Ltd.
    Inventors: John Porter, Rosalene Brunka
  • Patent number: 5869408
    Abstract: Hand-tearable barrier laminates are provided which include a reinforcing layer having a first tensile strength laminated to flexible cellulosic web comprising open porosity and a second tensile strength which is less than the first tensile strength. The web is treated with a water-resistant polymeric resin for providing liquid water resistance to the web while permitting water vapor to pass through it. Inexpensive web materials can be substituted for polymer foam and microperforated plastic films currently employed by the housing industry.
    Type: Grant
    Filed: September 8, 1997
    Date of Patent: February 9, 1999
    Assignee: Bay Mills Ltd.
    Inventors: John Porter, Rosalene Brunka
  • Patent number: 5733824
    Abstract: Hand-tearable barrier laminates are provided which include a reinforcing layer having a first tensile strength laminated to flexible cellulosic web comprising open porosity and a second tensile strength which is less than the first tensile strength. The web is treated with a water-resistant polymeric resin for providing liquid water resistance to the web while permitting water vapor to pass through it. Inexpensive web materials can be substituted for polymer foam and microperforated plastic films currently employed by the housing industry.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: March 31, 1998
    Assignee: Bay Mills LTD
    Inventors: Rosalene Brunka, John Porter
  • Patent number: 5397530
    Abstract: A method for heating metal powder, e.g., iron powder, comprises irradiating the powder with microwaves. The powder may be coated with various materials to enhance the heating effects of the microwave. For example, the powder may be coated with a non-emissive material, such as a ceramic material. The powder may also be coated with a dipole material, such as water or plastic, or a dielectric material.
    Type: Grant
    Filed: February 2, 1994
    Date of Patent: March 14, 1995
    Assignee: Hoeganaes Corporation
    Inventors: K. S. V. L. Narasimhan, Johan Arvidsson, Howard G. Rutz, W. John Porter, Jr.
  • Patent number: D414752
    Type: Grant
    Filed: July 24, 1998
    Date of Patent: October 5, 1999
    Assignee: The Foxboro Company
    Inventors: Albert Rooyakkers, John Porter, Ludi Van Deurse
  • Patent number: D415124
    Type: Grant
    Filed: July 24, 1998
    Date of Patent: October 12, 1999
    Assignee: The Foxboro Company
    Inventors: Albert Rooyakkers, John Porter
  • Patent number: D428607
    Type: Grant
    Filed: July 24, 1998
    Date of Patent: July 25, 2000
    Assignee: The Foxboro Company
    Inventors: John Porter, Ludi Van Deurse
  • Patent number: D428864
    Type: Grant
    Filed: January 13, 1999
    Date of Patent: August 1, 2000
    Assignee: The Foxboro Company
    Inventors: Albert Rooyakkers, John Porter