Patents by Inventor Rolf Sarres

Rolf Sarres 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: 9890999
    Abstract: An industrial furnace (1) into which protective gas is admitted for the heat treatment of batches (5) of metal workpieces is described. The heat treating furnace includes an entrance lock (2) which can be sealed with respect to the surrounding environment by means of a first gas-tight closure device (2.2.1). The heat treating furnace also includes a third gas-tight closure device (3.1) disposed between a heat treatment chamber (3) of the furnace and a quenching facility (4) at the exit of the heat treatment chamber. With the foregoing arrangement a pressure of the protective gas admitted into the heat treatment chamber (3) can be maintained during loading and unloading of a batch of metal workpieces (5). The entrance lock may be configured as a dual-chamber vertical arrangement or as a single chamber horizontal arrangement.
    Type: Grant
    Filed: October 8, 2013
    Date of Patent: February 13, 2018
    Assignee: Ipsen, Inc.
    Inventors: Rolf Sarres, Marc Angenendt
  • Patent number: 9188392
    Abstract: In order to increase energy efficiency in an industrial furnace (1) operated by heating gas and protective gas for thermally treating materials, a first burner (3.1) is actuated for heating with priority over a second burner (3.2), the second burner (3.2) is engaged additionally and operated when the output from the first burner (3.1) falls below the level necessary to heat the industrial furnace (1) up to a temperature setpoint, and the second burner (3.2) is switched off when the temperature setpoint has been reached.
    Type: Grant
    Filed: April 2, 2012
    Date of Patent: November 17, 2015
    Assignee: IPSEN, INC.
    Inventors: Rolf Sarres, Wilhelm van de Kamp
  • Publication number: 20150072297
    Abstract: The invention relates to a method for heating an industrial furnace, wherein, apart from heating gas, a combustible process gas is also fed to a burner arrangement (9) of the industrial furnace for heating an interior space in the course of a heat treatment cycle. In order to optimize the use of the combustible process gas for the heating of the industrial furnace, the heat treatment cycle is split up into a plurality of process phases, wherein the supply of the process gas to the burner arrangement (9) is regulated depending on the process phase. Furthermore, the invention relates to a heating device (8) for an industrial furnace, as well as an industrial furnace that includes the heating device.
    Type: Application
    Filed: September 4, 2014
    Publication date: March 12, 2015
    Inventors: Rolf Sarres, Marc Angenendt
  • Publication number: 20140106287
    Abstract: An industrial furnace (1) into which protective gas is admitted for the heat treatment of batches (5) of metal workpieces is described. The heat treating furnace includes an entrance lock (2) which can be sealed with respect to the surrounding environment by means of a first gas-tight closure device (2.2.1). The heat treating furnace also includes a third gas-tight closure device (3.1) disposed between a heat treatment chamber (3) of the furnace and a quenching facility (4) at the exit of the heat treatment chamber. With the foregoing arrangement a pressure of the protective gas admitted into the heat treatment chamber (3) can be maintained during loading and unloading of a batch of metal workpieces (5). The entrance lock may be configured as a dual-chamber vertical arrangement or as a single chamber horizontal arrangement.
    Type: Application
    Filed: October 8, 2013
    Publication date: April 17, 2014
    Applicant: IPSEN, INC.
    Inventors: Rolf Sarres, Marc Angenendt
  • Publication number: 20120276494
    Abstract: In order to increase energy efficiency in an industrial furnace (1) operated by heating gas and protective gas for thermally treating materials, a first burner (3.1) is actuated for heating with priority over a second burner (3.2), the second burner (3.2) is engaged additionally and operated when the output from the first burner (3.1) falls below the level necessary to heat the industrial furnace (1) up to a temperature setpoint, and the second burner (3.2) is switched off when the temperature setpoint has been reached.
    Type: Application
    Filed: April 2, 2012
    Publication date: November 1, 2012
    Inventors: Rolf Sarres, Wilhelm van de Kamp
  • Patent number: 8246901
    Abstract: A furnace (1), which, for the heat treatment of metal workpieces, has a tubular metal retort (3) and a furnace housing (2) enclosing the retort (3), the retort (3) comprising a gastight closable treatment or batch space (10), which receives the protective and reactive gases, for the heat treatment of the workpieces and a receptacle framework (8) as a batch receptacle for the positioning thereof, the weight of the batch and the receptacle framework (8) is decoupled from the retort (3), the receptacle framework (8) is connected to means (5) for support on the furnace housing (2), and the means (5) are guided gastight in passages (6) of a wall (2.1) of the furnace housing (2) and a wall (3.1) of the retort (3).
    Type: Grant
    Filed: January 24, 2011
    Date of Patent: August 21, 2012
    Assignee: Ipsen, Inc.
    Inventors: Rolf Sarres, Heinz Schwall
  • Publication number: 20110114621
    Abstract: An electrically heated retort furnace for the heat treatment of metal workpieces comprises a furnace housing having retort, a heating unit, and a circulation unit, in which, to increase the efficiency of the heat treatment by more uniform heating of the retort, the heating unit has multiple heating elements, which are situated so they are at least individually replaceable in the first volume space using closable first openings incorporated in the furnace housing, a second circulation unit for circulating the air in the first volume space is received by the furnace housing and is situated so it is replaceable as a module using a closable second opening, and the heating elements and circulation unit are received in the first volume space.
    Type: Application
    Filed: January 24, 2011
    Publication date: May 19, 2011
    Inventors: Rolf Sarres, Heinz Schwall
  • Publication number: 20110115138
    Abstract: To increase the usage value and for increased availability of retort furnaces (1), which, for the heat treatment of metal workpieces, have a tubular metal retort (3) and a furnace housing (2) enclosing the retort (3), the retort (3) comprising a gastight closable treatment or batch space (10), which receives the protective and reactive gases, for the heat treatment of the workpieces and a receptacle framework (8) as a batch receptacle for the positioning thereof, the weight of the batch and the receptacle framework (8) is decoupled from the retort (3), the receptacle framework (8) is connected to means (5) for support on the furnace housing (2), and the means (5) are guided gastight in passages (6) of a wall (2.1) of the furnace housing (2) and a wall (3.1) of the retort (3) (FIG. 1).
    Type: Application
    Filed: January 24, 2011
    Publication date: May 19, 2011
    Inventors: Rolf Sarres, Heinz Schwall
  • Publication number: 20110115137
    Abstract: In a retort furnace having a heating assembly, a circulation unit, and an assigned cooling unit, uniform and rapid cooling of the heat-treated workpieces is achieved by three solution variants. The first variant includes a second floor (9.1) assembled to a floor (9) to form an intermediate space which is divided into two ring spaces which are isolated gastight from one another including a first volume space (16) and a second volume space (17). The second variant includes situating throttle valves (20, 21) in a housing (36), each valve having a receptacle space (33), into which a valve plug is movable. In the third variant which is a combination of the first and second variants, the first volume space (16) and the second volume space (17) are adapted to interact for flow technology in such a manner that in the open position of the plug, the flow cross-section of each line (11, 14) is completely unblocked and provides circulation of a cold gas with favorable flow and therefore rapid cooling of the batch (7).
    Type: Application
    Filed: January 24, 2011
    Publication date: May 19, 2011
    Inventors: Rolf Sarres, Heinz Schwall