Patents by Inventor Henrik Hagman

Henrik Hagman 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).

  • Shower drain system and a shower or shower cabin
    Patent number: 11959268
    Abstract: A shower drain system for recovering thermal energy from a flow of shower greywater comprises: a drain cup for receiving shower greywater, and a heat exchanger arranged downstream of the drain cup, the heat exchanger being configured to heat a flow of incoming cold water with the shower greywater, wherein the drain cup comprises a nozzle arranged and configured to supply hot water into the drain cup.
    Type: Grant
    Filed: December 15, 2021
    Date of Patent: April 16, 2024
    Assignee: Enduce AB
    Inventor: Henrik Hagman
  • A SHOWER DRAIN SYSTEM AND A SHOWER OR SHOWER CABIN
    Publication number: 20240052621
    Abstract: A shower drain system for recovering thermal energy from a flow of shower greywater comprises: a drain cup for receiving shower greywater, and a heat exchanger arranged downstream of the drain cup, the heat exchanger being configured to heat a flow of incoming cold water with the shower greywater, wherein the drain cup comprises a nozzle arranged and configured to supply hot water into the drain cup.
    Type: Application
    Filed: December 15, 2021
    Publication date: February 15, 2024
    Applicant: Enduce AB
    Inventor: Henrik HAGMAN
  • System for energy recovery and cleaning of heat exchangers in shower applications
    Patent number: 9777932
    Abstract: A system is provided for heat recovery from shower greywater. An outlet for greywater is connected to a heat exchanger's inlet for greywater and the heat exchanger is designed so that a cold supply water flows in the opposite direction through the heat exchanger relative to the relatively hot greywater, so that heat exchange works under a counterflow principle and heat energy is transferred from the hot greywater to the cold supply water. A manifold having a nozzle outlet for hot supply water is connected to a waste pipe so that the manifold nozzle outlet for hot supply water opens into the waste pipe at a position downstream of the waste pipe inlet for greywater but upstream of the waste pipe outlet for greywater.
    Type: Grant
    Filed: February 2, 2016
    Date of Patent: October 3, 2017
    Inventors: Henrik Hagman, Gustav Nillson
  • SYSTEM FOR ENERGY RECOVERY AND CLEANING OF HEAT EXCHANGERS IN SHOWER APPLICATIONS
    Publication number: 20160169538
    Abstract: A system is provided for heat recovery from shower greywater. An outlet for greywater is connected to a heat exchanger's inlet for greywater and the heat exchanger is designed so that a cold supply water flows in the opposite direction through the heat exchanger relative to the relatively hot greywater, so that heat exchange works under a counterflow principle and heat energy is transferred from the hot greywater to the cold supply water. A manifold having a nozzle outlet for hot supply water is connected to a waste pipe so that the manifold nozzle outlet for hot supply water opens into the waste pipe at a position downstream of the waste pipe inlet for greywater but upstream of the waste pipe outlet for greywater.
    Type: Application
    Filed: February 2, 2016
    Publication date: June 16, 2016
    Inventors: Henrik Hagman, Gustav Nillson