Patents by Inventor Keith Lawrence

Keith Lawrence 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).

  • Publication number: 20260130573
    Abstract: A floor mat has a base formed of an elastomer. A fibrous layer insert has a peripheral margin protected by a peripheral wall and an inwardly extending overhang of the base. A flange of the base surrounds and downwardly extends from the peripheral wall and ends at a floor plane. Spaced-apart flange support ribs downwardly extend from a lower surface of the flange to the floor plane.
    Type: Application
    Filed: November 12, 2024
    Publication date: May 14, 2026
    Applicant: MACNEIL IP LLC
    Inventors: Keith LAWRENCE, Ryan GRANGER, Daniel GREENBERG, Frederick W. MASANEK, JR.
  • Publication number: 20170112308
    Abstract: A lid for a drinking cup for two having a generally circular panel of flexible material and having a circular retaining rim securing the lid to the circular rim of a drinking cup. The lid has a pair of orienting and access receptacles depending from the circular panel and having side walls sufficiently spaced to receive a drinking straw therebetween. The receptacles have drinking straw orienting walls for orientation of a pair of drinking straws within a cup. The receptacles each have a drinking straw entry wall oriented at an abrupt angle with the orienting wall and having a perforation permitting a drinking straw to be forced through the perforation and into a cup to which said lid is assembled.
    Type: Application
    Filed: October 26, 2015
    Publication date: April 27, 2017
    Inventors: RIVAN J. BENNEVENDO, SAM NGUYEN, KEITH LAWRENCE
  • Patent number: 8574087
    Abstract: A mechanical ride safety system for automatically disabling a mechanical ride in response to a rider losing his/her grip on the ride. The mechanical ride safety system generally includes a gripping member that is grasped by a rider when the ride in in use. The gripping member includes a sensing member which is adapted to sense whether the gripping member is being grasped or has been released. A processing unit and transmitter are communicatively interconnected with the sensing member so that a signal may be transmitted when the gripping member is released. A receiver is communicatively interconnected with the control unit of the mechanical ride such that, upon receiving a signal indicating that the gripping member has been released, the control unit will automatically disable the mechanical ride to prevent injury to the rider.
    Type: Grant
    Filed: October 28, 2011
    Date of Patent: November 5, 2013
    Inventors: Ian F. Newcombe, Keith Lawrence
  • Publication number: 20070215099
    Abstract: A direct injection fuel injector includes a nozzle tip having a plurality of passages allowing fluid communication between an inner nozzle tip surface portion and an outer nozzle tip surface portion and directly into a combustion chamber of an internal combustion engine. A first group of the passages have inner surface apertures located substantially in a first common plane. A second group of the passages have inner surface apertures located substantially in at least a second common plane substantially parallel to the first common plane. The second group has more passages than the first group.
    Type: Application
    Filed: May 22, 2007
    Publication date: September 20, 2007
    Inventors: Mark Cavanagh, Roger Urven, Keith Lawrence
  • Publication number: 20060231064
    Abstract: A direct injection fuel injector includes a nozzle tip having a plurality of passages allowing fluid communication between an inner nozzle tip surface portion and an outer nozzle tip surface portion and directly into a combustion chamber of an internal combustion engine. A first group of the passages have inner surface apertures located substantially in a first common plane. A second group of the passages have inner surface apertures located substantially in at least a second common plane substantially parallel to the first common plane. The second group has more passages than the first group.
    Type: Application
    Filed: February 15, 2006
    Publication date: October 19, 2006
    Inventors: Mark Cavanagh, Roger Urven, Keith Lawrence
  • Publication number: 20060112911
    Abstract: A variable compression ratio mechanism for an internal combustion engine that has an engine block and a crankshaft is disclosed. The variable compression ratio mechanism has a plurality of eccentric disks configured to support the crankshaft. Each of the plurality of eccentric disks has at least one cylindrical portion annularly surrounded by the engine block. The variable compression ratio mechanism also has at least one actuator configured to rotate the plurality of eccentric disks.
    Type: Application
    Filed: November 30, 2004
    Publication date: June 1, 2006
    Inventors: Keith Lawrence, William Moser, Stephan Roozenboom, Kevin Knox
  • Patent number: 6769635
    Abstract: A fuel injector includes a homogenous charge nozzle outlet set and a conventional nozzle outlet set controlled respectively, by first and second needle valve members. One of the needle valve members moves to an open position while the other needle valve member remains stationary for a homogeneous charge injection event. The former needle valve member stays stationary while the other needle valve member moves to an open position for a conventional injection event. One of the needle valve members is at least partially positioned in the other needle valve member. Thus, the injector can perform homogeneous charge injection events, conventional injection events, or even a mixed mode having both types of injection events in a single engine cycle.
    Type: Grant
    Filed: May 16, 2003
    Date of Patent: August 3, 2004
    Assignee: Caterpillar Inc
    Inventors: Chris Stewart, Scott A. Chockley, Daniel R. Ibrahim, Keith Lawrence, Jay Tomaseki, Junru H. Azam, Steven Ye Tian, Scott F. Shafer
  • Publication number: 20040055562
    Abstract: A fuel injector includes a homogenous charge nozzle outlet set and a conventional nozzle outlet set controlled respectively, by first and second needle valve members. One of the needle valve members moves to an open position while the other needle valve member remains stationary for a homogeneous charge injection event. The former needle valve member stays stationary while the other needle valve member moves to an open position for a conventional injection event. One of the needle valve members is at least partially positioned in the other needle valve member. Thus, the injector can perform homogeneous charge injection events, conventional injection events, or even a mixed mode having both types of injection events in a single engine cycle.
    Type: Application
    Filed: May 16, 2003
    Publication date: March 25, 2004
    Inventors: Chris Stewart, Scott A. Chockley, Daniel R. Ibrahim, Keith Lawrence, Jay Tomaseski, Junru H. Azam, Steven Ye Tian, Scott F. Shafer
  • Patent number: D983717
    Type: Grant
    Filed: July 2, 2021
    Date of Patent: April 18, 2023
    Assignee: MACNEIL IP LLC
    Inventors: Keith Lawrence, Benjamin Popper