Patents by Inventor Kaj Ronnblad

Kaj Ronnblad 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: 10767360
    Abstract: Toilet arrangement, which includes a gravity toilet bowl (1) provided with a water trap (11) and an outlet (12). The arrangement further includes a water valve (5), a flush water tank (4), and a flush valve (6) arranged between the flush water tank (4) and the toilet bowl (1), and an activating means (8) for activating a flushing sequence. In order to allow for the use of a standard gravity toilet bowl in connection with a vacuum sewage system, the toilet arrangement comprises an adapter (13) which is arranged between the gravity toilet bowl (1) and a discharge valve (2) connected to a vacuum sewer piping (3). A control mechanism (7) is connected to the vacuum sewer piping (3), the discharge valve (2), the water valve (5) and the flush valve (6), whereby the control mechanism (7) is arranged to be activated by means of the activating means (8).
    Type: Grant
    Filed: February 7, 2017
    Date of Patent: September 8, 2020
    Assignee: EVAC OY
    Inventors: Vesa Lappalainen, Kaj Rönnblad
  • Publication number: 20190040617
    Abstract: Toilet arrangement, which includes a gravity toilet bowl (1) provided with a water trap (11) and an outlet (12). The arrangement further includes a water valve (5), a flush water tank (4), and a flush valve (6) arranged between the flush water tank (4) and the toilet bowl (1), and an activating means (8) for activating a flushing sequence. In order to allow for the use of a standard gravity toilet bowl in connection with a vacuum sewage system, the toilet arrangement comprises an adapter (13) which is arranged between the gravity toilet bowl (1) and a discharge valve (2) connected to a vacuum sewer piping (3). A control mechanism (7) is connected to the vacuum sewer piping (3), the discharge valve (2), the water valve (5) and the flush valve (6), whereby the control mechanism (7) is arranged to be activated by means of the activating means (8).
    Type: Application
    Filed: February 7, 2017
    Publication date: February 7, 2019
    Applicant: EVAC OY
    Inventors: Vesa Lappalainen, Kaj Rönnblad
  • Patent number: 7770241
    Abstract: Disclosed is a sewer system including a sewage receptacle, sewer piping connected to the sewage receptacle by means of a discharge valve, a mechanism for generating vacuum in the sewer piping, and a control mechanism for controlling the discharge valve. In order to achieve a more rapid closing of the discharge valve after discharge of the sewage from the sewage receptacle, the vacuum sewer system further comprises an aeration device in direct fluid communication with the discharge valve. The control mechanism is arranged to control the aeration device. Also disclosed is a discharge valve (2) for such a vacuum sewer system.
    Type: Grant
    Filed: February 9, 2007
    Date of Patent: August 10, 2010
    Assignee: Evac International Oy
    Inventors: Vesa Lappalainen, Gunnar Lindroos, Kaj Ronnblad
  • Publication number: 20070226887
    Abstract: The present invention relates to a sewer system comprising a sewage receptacle (1), sewer piping (3) connected to the sewage receptacle by means of a discharge valve (2), a vacuum generating means (4) for generating vacuum in the sewer piping, and a control mechanism (5) for controlling the discharge valve. In order to achieve a more rapid closing of the discharge valve (2) after discharge of the sewage from the sewage receptacle (1), the vacuum sewer system further comprises an aeration means (10) in direct fluid communication with the discharge valve (2). The control mechanism (5) is arranged to control the aeration means (10). The present invention also relates to a discharge valve (2) for such a vacuum sewer system.
    Type: Application
    Filed: February 9, 2007
    Publication date: October 4, 2007
    Inventors: Vesa Lappalainen, Gunnar Lindroos, Kaj Ronnblad
  • Patent number: RE45688
    Abstract: Disclosed is a sewer system including a sewage receptacle, sewer piping connected to the sewage receptacle by means of a discharge valve, a mechanism for generating vacuum in the sewer piping, and a control mechanism for controlling the discharge valve. In order to achieve a more rapid closing of the discharge valve after discharge of the sewage from the sewage receptacle, the vacuum sewer system further comprises an aeration device in direct fluid communication with the discharge valve. The control mechanism is arranged to control the aeration device. Also disclosed is a discharge valve (2) for such a vacuum sewer system.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: September 29, 2015
    Assignee: Evac Oy
    Inventors: Vesa Lappalainen, Gunnar Lindroos, Kaj Ronnblad