Patents by Inventor Hans-Julius Ahlmann

Hans-Julius Ahlmann 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: 10519645
    Abstract: In order to seal gutters at the ends with low output, an end wall (10) of a gutter (30) is provided for surface drainage, comprising a plate element (11) which can be secured at a first or a second end of the gutter (30) substantially sealingly closing a cross-section of the gutter (30). In addition, the ends (31, 32) of the gutter (30) are formed differently. According to the invention, in order to reduce the output, the plate element (11) can be secured at the first end (31) of the gutter (30) with a first edge (12) oriented upwards or can be secured at the second end (32) with a second edge (13) oriented upwards. In this way, an adjustment can be made to both differently formed ends (31, 32) of the gutter (30) by simply rotating the plate element.
    Type: Grant
    Filed: May 2, 2017
    Date of Patent: December 31, 2019
    Assignee: ACO SEVRIN AHLMANN GMBH & CO KG
    Inventors: Stephan Meier, Hans-Julius Ahlmann
  • Publication number: 20190136501
    Abstract: In order to seal gutters at the ends with low output, an end wall (10) of a gutter (30) is provided for surface drainage, comprising a plate element (11) which can be secured at a first or a second end of the gutter (30) substantially sealingly closing a cross-section of the gutter (30). In addition, the ends (31, 32) of the gutter (30) are formed differently. According to the invention, in order to reduce the output, the plate element (11) can be secured at the first end (31) of the gutter (30) with a first edge (12) oriented upwards or can be secured at the second end (32) with a second edge (13) oriented upwards. In this way, an adjustment can be made to both differently formed ends (31, 32) of the gutter (30) by simply rotating the plate element.
    Type: Application
    Filed: May 2, 2017
    Publication date: May 9, 2019
    Inventors: Stephan Meier, Hans-Julius Ahlmann
  • Patent number: 10184239
    Abstract: Covers for drains, manholes or similar constructions are known which comprise a first grate (10) made of sheet metal and comprising slots (11) and struts (12), said struts having top faces (13) and each strut having side faces (14, 14?) made of sheet metal bent with respect to the top face. In order to increase the rigidity it is proposed that at least a second grate (20) is provided, the struts (22) of which are inserted in the slots (11) of the first grate (10).
    Type: Grant
    Filed: August 16, 2011
    Date of Patent: January 22, 2019
    Assignee: ACO SEVERIN AHLMANN GMBH & CO. KG
    Inventors: Arne Meincke, Hans-Julius Ahlmann
  • Patent number: 9745733
    Abstract: A stable and variable design of a drainage structure includes a drainage body (11) and a cover (20). The cover (20) has engagement devices (13, 13?; 14, 14?; 23, 23?) when seen in a longitudinal direction of the drainage body (11), whereby the cover connects upper edges (12, 12?) of the drainage body (11) to one another transversely to the longitudinal direction in a tension-resistant manner over the entire length of the drainage body. In order to allow the use of different covers (20) for different loads, for example while using the same drainage body (11), two types of engagement devices (13, 13?; 14, 14?) are provided on the drainage body.
    Type: Grant
    Filed: September 9, 2013
    Date of Patent: August 29, 2017
    Assignee: ACO SEVERIN AHLMANN GMBH & CO. KG
    Inventors: Hans-Julius Ahlmann, Jan Mieze, James Canney, Stephan Meier
  • Publication number: 20150240470
    Abstract: The aim of the invention is to allow a simultaneously stable and variable design of a drainage structure consisting of a drainage body (11) and a cover (20). This is achieved in that the drainage body (11) and the cover (20) continuously have engagement devices (13, 13?; 14, 14?; 23, 23?) when seen in a longitudinal direction of the drainage body (11), whereby the cover connects upper edges (12, 12?) of the drainage body (11) to one another transversely to the longitudinal direction in a tension-resistant manner over the entire length of the drainage body. In order to allow the use of different covers (20) for different loads for example while using the same drainage body (11), two types of engagement devices (13, 13?; 14, 14?) are provided on the drainage body.
    Type: Application
    Filed: September 9, 2013
    Publication date: August 27, 2015
    Inventors: Hans-Julius Ahlmann, Jan Mieze, James Canney, Stephan Meier
  • Publication number: 20130161246
    Abstract: Covers for drains, manholes or similar constructions are known which comprise a first grate (10) made of sheet metal and comprising slots (11) and struts (12), said struts having top faces (13) and each strut having side faces (14, 14?) made of sheet metal bent with respect to the top face. In order to increase the rigidity it is proposed that at least a second grate (20) is provided, the struts (22) of which are inserted in the slots (11) of the first grate (10).
    Type: Application
    Filed: August 16, 2011
    Publication date: June 27, 2013
    Applicant: ACO SEVERIN AHLMANN GMBH & CO. KG
    Inventors: Arne Meincke, Hans-Julius Ahlmann
  • Patent number: 7931421
    Abstract: A cover grating for a drainage channel or a similarly hollow body which can be installed in the ground is presented, wherein the cover grating is produced in a single piece and more particularly from a sheet metal strip, comprising at least two longitudinal webs extending on the underside of the cover grating and inlet slots formed in the cover grating between these longitudinal webs and comprising transverse webs resulting from the slot forming operation and extending on the lower side of the cover grating wherein the transverse webs are provided at each of their end regions with at least one receiving projection which at least partially engages in to a respective complementarily formed receiving slot in the longitudinal web.
    Type: Grant
    Filed: March 5, 2007
    Date of Patent: April 26, 2011
    Assignee: ACO Severin Ahlmann GmbH & Co. KG
    Inventors: Axel Rathmann, Hans-Julius Ahlmann
  • Publication number: 20100008719
    Abstract: A cover grating for a drainage channel or a similarly hollow body which can be installed in the ground is presented, wherein the cover grating is produced in a single piece and more particularly from a sheet metal strip, comprising at least two longitudinal webs extending on the underside of the cover grating and inlet slots formed in the cover grating between these longitudinal webs and comprising transverse webs resulting from the slot forming operation and extending on the lower side of the cover grating wherein the transverse webs are provided at each of their end regions with at least one receiving projection which at least partially engages in to a respective complementarily formed receiving slot in the longitudinal web.
    Type: Application
    Filed: March 5, 2007
    Publication date: January 14, 2010
    Inventors: Axel Rathmann, Hans-Julius Ahlmann