Patents by Inventor Jan Pawel WOJNAR

Jan Pawel WOJNAR 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).

  • Packing case for reciprocating machine and method of assembling the same
    Patent number: 10563766
    Abstract: A packing case for a plunger or a piston rod of a reciprocating machine comprises packing cups, each packing cup comprising a body with a hole for the passage of the plunger or rod and a sealing ring seat for housing a sealing ring which slidably bear against the plunger or rod. Packing cups are aligned with each other in series. The packing case comprises lube oil ducts for supplying lube oil from an end of the packing case to the sealing ring seat. Each packing cup comprises sectors, each sector comprising at least lube oil duct portions. The packing cups are positionable to bring, one sector at a time in an activation position where some of the lube oil duct portions of the sector are connected with the lube oil duct portions of an adjacent packing cup to form lube oil ducts. The packing cups are lockable.
    Type: Grant
    Filed: November 27, 2015
    Date of Patent: February 18, 2020
    Assignee: NUOVO PIGONE SRL
    Inventors: Carmelo Maggi, Jan Pawel Wojnar, Michele Sanesi, Leonardo Tognarelli
  • PACKING CASE FOR RECIPROCATING MACHINE AND METHOD OF ASSEMBLING THE SAME
    Publication number: 20180010691
    Abstract: A packing case for a plunger or a piston rod of a reciprocating machine comprises packing cups, each packing cup comprising a body with a hole for the passage of the plunger or rod and a sealing ring seat for housing a sealing ring which slidably bear against the plunger or rod. Packing cups are aligned with each other in series. The packing case comprises lube oil ducts for supplying lube oil from an end of the packing case to the sealing ring seat. Each packing cup comprises sectors, each sector comprising at least lube oil duct portions. The packing cups are positionable to bring, one sector at a time in an activation position where some of the lube oil duct portions of the sector are connected with the lube oil duct portions of an adjacent packing cup to form lube oil ducts. The packing cups are lockable.
    Type: Application
    Filed: November 27, 2015
    Publication date: January 11, 2018
    Applicant: Nuovo Pignone Srl
    Inventors: Carmelo MAGGI, Jan Pawel WOJNAR, Michele SANESI, Leonardo TOGNARELLI