Patents by Inventor John A. Petrie

John A. Petrie 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: 20080198447
    Abstract: Systems and techniques relating to a microscope with an adjustable stage are described. A microscope includes a base, a support arm attached to and extending upwardly from the base, a head attached to the support arm, the head including a lens, and an eyepiece attached to the head. A stage is releasably attachable to the support arm between the head and the base at multiple locations, providing multiple working distances between a lower surface of the head and an upper surface of the stage. When the stage is attached to the support arm at a location, a working distance between the lower surface of the head and the upper surface of the stage is further adjustable to an either greater or lesser working distance. In another embodiment, microscopic and macroscopic viewing can both be provided using a lens changer with multiple lens positioned radially about an axis of rotation.
    Type: Application
    Filed: June 14, 2007
    Publication date: August 21, 2008
    Applicant: SWIFT INSTRUMENTS, INC.
    Inventors: Alison C. Swift, David John Copeland, Daniel J. Nelsen, Aidan John Petrie, Ryan Patrick White, Robert J. Garay, Jacques Valiquette
  • Patent number: 7315414
    Abstract: Systems and techniques relating to a microscope with an adjustable stage are described. A microscope includes a base, a support arm attached to and extending upwardly from the base, a head attached to the support arm, the head including a lens, and an eyepiece attached to the head. A stage is releasably attachable to the support arm between the head and the base at multiple locations, providing multiple working distances between a lower surface of the head and an upper surface of the stage. When the stage is attached to the support arm at a location, a working distance between the lower surface of the head and the upper surface of the stage is further adjustable to an either greater or lesser working distance. In another embodiment, microscopic and macroscopic viewing can both be provided using a lens changer with multiple lens positioned radially about an axis of rotation.
    Type: Grant
    Filed: March 31, 2004
    Date of Patent: January 1, 2008
    Assignee: Swift Instruments, Inc.
    Inventors: Alison C. Swift, David John Copeland, Daniel J. Nelsen, Aidan John Petrie, Ryan Patrick White, Robert J. Garay, Jacques Valiquette
  • Patent number: 5878899
    Abstract: A holder assembly, for use with disposable baby feeding liners, includes a holder having a longitudinal slot and a member. The member has a disk and a finger-operated attachment joined to the disk at a single location. The attachment engages the longitudinal slot to mount the disk slidably within the holder. The attachment is readily adapted to assembly and disassembly. The holder, preferably, has a dual set of markings for determining the volume of liquid entering into the liner and the volume of liquid remaining in the liner as the baby is feeding.
    Type: Grant
    Filed: March 4, 1997
    Date of Patent: March 9, 1999
    Assignee: Playtex Products, Inc.
    Inventors: Francis X. Manganiello, Aiden John Petrie
  • Patent number: 5088672
    Abstract: A circumscribing clamp useful for attaching a sign to a post or other support structure and permitting circumferential positioning of the clamp there around. The clamp comprises a first clamp member having a central base section positioned in the first plane of reference and first and second wing sections extending therefrom. A second clamp member of similar construction is provided having a central base and first and second wing sections with first and second distal ends. The first distal ends of each respective clamp include interlock structure which engages with interlock structure of the second distal ends along a directional orientation which is approximately perpendicular with respect to the plane of reference identified for the first clamp member.
    Type: Grant
    Filed: January 2, 1991
    Date of Patent: February 18, 1992
    Inventors: Paul A. Neuendorf, John A. Petrie
  • Patent number: 5079977
    Abstract: A pair of removable jaws interchangeable between internal and external retaining ring tools, each of the tools including a tool body having a pair of handles pivotally connected together, with bores or openings in the ends of the handles for receipt of stepped cylindrical extensions on the jaws. Preferably, the jaws are made of premium steel, whereas the tool bodies may be either forged using a lesser quality steel or made of even less expensive standard thin wall tubing. Tolerance rings frictionally retain the cylindrical extensions in the bores. The jaws and tool bodies have suitable indicia to index (orient) the jaws relative to the tool handles for both internal and external use.
    Type: Grant
    Filed: June 19, 1990
    Date of Patent: January 14, 1992
    Inventor: John A. Petrie
  • Patent number: 4687399
    Abstract: A retaining ring includes a hole in one end and a slot in the other end for use in determining the orientation of the ring. Such orientation is accomplished by randomly placing a plurality of such rings on a rail for similarly shaped member and advancing the rings along the rail until the holes or slots in the rings pass over a sorting rod. The rings with the holes engaged by the sorting rod are supported by the rod for transfer to another station such as another rail where a stack of the rings may be taped together. The rings with the slots engaged by the sorting rod with fall off the sorting rod in a controlled manner, and may be transferred onto another rail or other suitable support for orienting the other rings in the opposite direction to those which remained on the sorting rod for securing together in stacked relation similar to the rod oriented rings.
    Type: Grant
    Filed: January 6, 1986
    Date of Patent: August 18, 1987
    Inventor: John A. Petrie
  • Patent number: 4256010
    Abstract: A split beveled retaining ring and method for constructing the same is characterized by a beveled groove seating flange being formed by bending the radially inner or outer edge portion of a split ring body at an angle to the plane of the ring body. The part abutment surface of the ring body may be maintained in substantially the same plane as the terminal portion of the bent beveled flange either by indenting the ring body to form a new part abutment surface or by bending the groove seating flange twice in opposite directions.
    Type: Grant
    Filed: May 2, 1979
    Date of Patent: March 17, 1981
    Inventor: John A. Petrie
  • Patent number: 4184242
    Abstract: A split beveled retaining ring and method for constructing the same is characterized by a beveled groove seating flange being formed by bending the radially inner or outer edge portion of a split ring body at an angle to the plane of the ring body. A grinding operation may be employed to remove protruding material from the bent annular flange on the side of the ring opposite the groove seating surface thereon to provide a flat bearing shoulder normal to the ring axis while permitting enough of the beveled flange to be received in the groove for safe part retention. Alternatively, the part abutment surface of the ring body may be maintained in substantially the same plane as the terminal portion of the bent beveled flange either by indenting the ring body to form a new part abutment surface or by bending the groove seating flange twice in opposite directions.
    Type: Grant
    Filed: March 2, 1978
    Date of Patent: January 22, 1980
    Inventor: John A. Petrie
  • Patent number: D509521
    Type: Grant
    Filed: March 31, 2004
    Date of Patent: September 13, 2005
    Assignee: Swift Instruments, Inc.
    Inventors: Alison C. Swift, David John Copeland, Daniel J. Nelsen, Aidan John Petrie, Ryan Patrick White, Robert J. Garay, Jacques Valiquette
  • Patent number: D518840
    Type: Grant
    Filed: March 31, 2004
    Date of Patent: April 11, 2006
    Assignee: Swift Instruments, Inc.
    Inventors: David John Copeland, Aidan John Petrie
  • Patent number: D521037
    Type: Grant
    Filed: January 9, 2004
    Date of Patent: May 16, 2006
    Assignee: Swift Instruments, Inc.
    Inventors: Alison C. Swift, David John Copeland, Bryan Brownlee Robertson, Aidan John Petrie, Michael E. Twist, Blaine Matthew Adams, Bruce Keith Mercer
  • Patent number: D523047
    Type: Grant
    Filed: January 9, 2004
    Date of Patent: June 13, 2006
    Assignee: Swift Instruments, Inc.
    Inventors: Alison C. Swift, David John Copeland, Aidan John Petrie, Blaine Matthews Adams, Michael E. Twist, Bruce Keith Mercer, Bryan Brownlee Robertson
  • Patent number: D404137
    Type: Grant
    Filed: September 3, 1997
    Date of Patent: January 12, 1999
    Assignee: Playtex Products, Inc.
    Inventors: Ronald E. Underwood, William E. Fitzpatrick, Aiden John Petrie
  • Patent number: D413387
    Type: Grant
    Filed: October 13, 1998
    Date of Patent: August 31, 1999
    Assignee: Playtex Products, Inc.
    Inventors: William E. Fitzpatrick, Aiden John Petrie, Richard D. La Torre
  • Patent number: D421877
    Type: Grant
    Filed: October 19, 1998
    Date of Patent: March 28, 2000
    Assignee: Playtex Products, Inc.
    Inventors: Richard D. La Torre, Aidan John Petrie, Joseph P. Sejnowski