Patents by Inventor Wilfred Roettger

Wilfred Roettger 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: 9599221
    Abstract: The present invention refers to a connecting rod/piston arrangement for alternative compressor, comprising using at least an intermediate element capable of associating said connecting rod with the piston, wherein both do not radially contact with one another. A process for assembling said connecting rod/piston arrangement for alternative compressor is also disclosed. The connecting rod/piston arrangement for alternative compressor comprises at least a piston (1), at least an intermediate element (2) and at least a connecting rod (3), wherein said piston (1) comprises at least a non-through axial channel (11); said intermediate element (2) comprises at least a through axial channel (21); and said connecting rod (3) comprises at least a connection end (31). In this regard, the intermediate element (2) is securely housed inside the non-through axial channel (11) of piston (1); and said connection end (31) of connecting rod (3) is securely housed inside the through axial channel (21) of intermediate element (2).
    Type: Grant
    Filed: June 21, 2012
    Date of Patent: March 21, 2017
    Assignee: Whirlpool S.A.
    Inventors: Alisson Luiz Roman, Celso Kenzo Takemori, Paulo Rogerio Carrara Couto, Wilfred Roettger
  • Patent number: 9562526
    Abstract: The present invention refers to the arrangement of components comprised in a linear compressor (1), which is fundamentally composed by at least one resonant oscillating mechanism comprising at least one resonant spring (2) which defines at least one neutral point (21), at least one magnet (3) and at least one piston (4); at least one intermediate element (5) which defines an axially flexible surface (51); at least one flat spring (6) which defines at least one binding structure (62); at least one shell (7); and at least one attaching means (8).
    Type: Grant
    Filed: June 21, 2012
    Date of Patent: February 7, 2017
    Assignee: Whirlpool S.A.
    Inventors: Alisson Luiz Roman, Celso Kenzo Takemori, Paulo Rogerio Carrara Couto, Wilfred Roettger
  • Patent number: 9534591
    Abstract: The present invention refers to a linear compressor based on resonant oscillating mechanism, which is comprised by at least one resonant spring (2) at least one linear motor (3) composed of at least one fixed portion (31 ) and at least one movable portion (32), at least one piston (4) operatively associated with at least one rod (5) and at least one cylinder (6), all these elements being disposed within a housing (7), and the movable portion (32) of the linear motor (3) is physically associated with one end of the resonance spring (2) through a first coupling assembly and the rod (5) is physically associated with the opposite end of the resonance spring (2) through a second coupling assembly. The linear motor (3), the cylinder (6) and the piston (4) are physically arranged within a same end of the housing (7). The rod (5) is disposed within the resonant spring (2). The piston-cylinder assembly (4, 6) is capable of acting at the distal end to the coupling end between the rod (5) to the resonant spring (2).
    Type: Grant
    Filed: August 6, 2012
    Date of Patent: January 3, 2017
    Assignee: Whirlpool S.A.
    Inventors: Wilfred Roettger, Ingwald Vollrath, Paulo Rogério Carrara Couto, Celso Kenzo Takemori
  • Publication number: 20150040752
    Abstract: The present invention refers to a connecting rod/piston arrangement for alternative compressor, comprising using at least an intermediate element capable of associating said connecting rod with the piston, wherein both do not radially contact with one another. A process for assembling said connecting rod/piston arrangement for alternative compressor is also disclosed. The connecting rod/piston arrangement for alternative compressor comprises at least a piston (1), at least an intermediate element (2) and at least a connecting rod (3), wherein said piston (1) comprises at least a non-through axial channel (11); said intermediate element (2) comprises at least a through axial channel (21); and said connecting rod (3) comprises at least a connection end (31). In this regard, the intermediate element (2) is securely housed inside the non-through axial channel (11) of piston (1); and said connection end (31) of connecting rod (3) is securely housed inside the through axial channel (21) of intermediate element (2).
    Type: Application
    Filed: June 21, 2012
    Publication date: February 12, 2015
    Applicant: Whirlpool S.A.
    Inventors: Alisson Luiz Roman, Celso Kenzo Takemori, Paulo Rogerio Carrara Couto, Wilfred Roettger
  • Publication number: 20140301874
    Abstract: The present invention refers to a linear compressor based on resonant oscillating mechanism, which is comprised by at least one resonant spring (2) at least one linear motor (3) composed of at least one fixed portion (31 ) and at least one movable portion (32), at least one piston (4) operatively associated with at least one rod (5) and at least one cylinder (6), all these elements being disposed within a housing (7), and the movable portion (32) of the linear motor (3) is physically associated with one end of the resonance spring (2) through a first coupling assembly and the rod (5) is physically associated with the opposite end of the resonance spring (2) through a second coupling assembly. The linear motor (3), the cylinder (6) and the piston (4) are physically arranged within a same end of the housing (7). The rod (5) is disposed within the resonant spring (2). The piston-cylinder assembly (4, 6) is capable of acting at the distal end to the coupling end between the rod (5) to the resonant spring (2).
    Type: Application
    Filed: August 6, 2012
    Publication date: October 9, 2014
    Applicant: Whirlpool S.A.
    Inventors: Wilfred Roettger, Ingwald Vollrath, Paulo Rogério Carrara Couto, Celso Kenzo Takemori
  • Publication number: 20140234145
    Abstract: The present invention refers to the arrangement of components comprised in a linear compressor (1), which is fundamentally composed by at least one resonant oscillating mechanism comprising at least one resonant spring (2) which defines at least one neutral point (21), at least one magnet (3) and at least one piston (4); at least one intermediate element (5) which defines an axially flexible surface (51); at least one flat spring (6) which defines at least one binding structure (62); at least one shell (7); and at least one attaching means (8).
    Type: Application
    Filed: June 21, 2012
    Publication date: August 21, 2014
    Applicant: WHIRLPOOL S.A.
    Inventors: Alisson Luiz Roman, Celso Kenzo Takemori, Paulo Rogerio Carrara Couto, Wilfred Roettger