Patents by Inventor Rainer Engelhardt

Rainer Engelhardt 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: 10136783
    Abstract: A suction apparatus for cleaning purposes includes a container, a suction subassembly, a filter element arranged in a container interior, and a pumping subassembly, where a mixture of a carrier fluid and particles of dirt can be taken in via a suction inlet and the particles of dirt are restrained by the filter element. The filter element is a filter bag through which the mixture is taken in by the suction subassembly. A filter bag restraining part subdivides the container interior into a filter bag accommodating space and a fluid delivery space, where the filter bag is arranged in the filter bag accommodating space and is prevented, by the filter bag restraining part, from expanding into the fluid delivery space, from which carrier fluid flowing around, or through, the filter bag restraining part is delivered by the pumping subassembly.
    Type: Grant
    Filed: June 1, 2015
    Date of Patent: November 27, 2018
    Assignee: Hilti Aktiengesellschaft
    Inventors: Steffen Jung, Martin Foell, Dirk Moell, Rainer Engelhardt
  • Publication number: 20180140147
    Abstract: A suction apparatus for cleaning purposes includes a container, a suction subassembly, a filter element arranged in a container interior, and a pumping subassembly, where a mixture of a carrier fluid and particles of dirt can be taken in via a suction inlet and the particles of dirt are restrained by the filter element. The filter element is a filter bag through which the mixture is taken in by the suction subassembly. A filter bag restraining part subdivides the container interior into a filter bag accommodating space and a fluid delivery space, where the filter bag is arranged in the filter bag accommodating space and is prevented, by the filter bag restraining part, from expanding into the fluid delivery space, from which carrier fluid flowing around, or through, the filter bag restraining part is delivered by the pumping subassembly.
    Type: Application
    Filed: June 1, 2015
    Publication date: May 24, 2018
    Applicant: Hilti Aktiengesellschaft
    Inventors: Steffen JUNG, Martin FOELL, Dirk MOELL, Rainer ENGELHARDT
  • Patent number: 8393048
    Abstract: A method for cleaning first and second filters of a suction device for cleaning purposes is provided. The suction device has a dirt collection container with a suction inlet. The dirt collection container is subjected to negative pressure via first and second suction lines, respectively, following the first and second filters. First and second closing valves close first and second external air inlets, respectively, into the first and second suction lines. For cleaning the filters, the closing valves are opened, subjecting the filters to external air on the clean space side. The dirt collection container is subjected to negative pressure via the first suction line and first filter by a first suction unit and via the second suction line and second filter by a second suction unit. The suction lines are sealed off relative to each other on the clean space side at least during the cleaning of the filters.
    Type: Grant
    Filed: October 10, 2011
    Date of Patent: March 12, 2013
    Assignee: Alfred Kaercher GmbH & Co. KG
    Inventors: Werner Rentschler, Rainer Engelhardt, Juergen Frank, Daniel Eckstein
  • Patent number: 8309077
    Abstract: Stabilized bacteriophage compositions, and methods for preparing stabilized bacteriophage compositions are provided. The method for producing an antibacterial composition involves adsorbing an aqueous solution of one or more bacteriophages, or one or more phage components, onto a matrix to produce a composition, and drying the composition to produce the antibacterial composition. An antibacterial composition comprising one or more strain of bacteriophage, or one or more phage component, adsorbed onto a matrix is also provided. The antibacterial composition, or the antibacterial composition embedded in a solid support, may be used within a cream, lotion or gel, be admixed with a pharmaceutical carrier and administered topically, orally, nasally, used as a powdered inhalant, or the antibacterial composition or encapsulated antibacterial composition, may be added to a feed for animal, aquatic or avian uses.
    Type: Grant
    Filed: November 2, 2005
    Date of Patent: November 13, 2012
    Assignee: CHR. Hansen A/S
    Inventors: Kishore Murthy, Rainer Engelhardt
  • Publication number: 20120258175
    Abstract: An encapsulated bacteriophage formulation and a method for preparing encapsulated bacteriophage formulation is provided. The method for producing the encapsulated bacteriophage composition involves injection of a molten coating substance comprising stearic acid and palmitic acid present at a ratio of 50:50, into a granulator chamber containing immobilized bacteriophages. The immobilized bacteriophage are agitated by rotation of a base of the chamber and swept by a flow of air at a temperature of between 10° C. and 50° C.
    Type: Application
    Filed: June 20, 2012
    Publication date: October 11, 2012
    Inventors: Kishore Murthy, Rainer Engelhardt
  • Publication number: 20120090640
    Abstract: A method for cleaning first and second filters of a suction device for cleaning purposes is provided. The suction device has a dirt collection container with a suction inlet. The dirt collection container is subjected to negative pressure via first and second suction lines, respectively, following the first and second filters. First and second closing valves close first and second external air inlets, respectively, into the first and second suction lines. For cleaning the filters, the closing valves are opened, subjecting the filters to external air on the clean space side. The dirt collection container is subjected to negative pressure via the first suction line and first filter by a first suction unit and via the second suction line and second filter by a second suction unit. The suction lines are sealed off relative to each other on the clean space side at least during the cleaning of the filters.
    Type: Application
    Filed: October 10, 2011
    Publication date: April 19, 2012
    Applicant: Alfred Kaercher GmbH & Co. KG
    Inventors: Werner Rentschler, Rainer Engelhardt, Juergen Frank, Daniel Eckstein
  • Patent number: 8091169
    Abstract: The invention relates to a mobile floor-cleaning appliance having a housing in which a cleaning tool is mounted, and having a handle holder which is mounted on the housing and is adapted to be connected to a handle in order to guide the appliance along a floor surface which is to be cleaned.
    Type: Grant
    Filed: December 27, 2007
    Date of Patent: January 10, 2012
    Assignee: Alfred Kaercher GmbH & Co. KG
    Inventors: Roland Jeutter, Rainer Engelhardt
  • Publication number: 20090130196
    Abstract: Bacteriophage compositions, and methods for preparing bacteriophage compositions are provided. The method for producing an antibacterial composition involves adsorbing an aqueous solution of one or more bacteriophages, or one or more phage components, onto a matrix to produce a composition, and drying the composition to produce the antibacterial composition. An antibacterial composition comprising one or more strain of bacteriophage, or one or more phage component, adsorbed onto a matrix is also provided. The antibacterial composition may also be encapsulated. The antibacterial composition, or the encapsulated antibacterial composition, may be used within a cream, lotion or gel, be admixed with a pharmaceutical carrier and administered topically, orally, nasally, used as a powdered inhalant, or the antibacterial composition or encapsulated antibacterial composition, may be added to a feed for animal, aquatic or avian uses.
    Type: Application
    Filed: November 2, 2005
    Publication date: May 21, 2009
    Inventors: Kishore Murthy, Rainer Engelhardt
  • Publication number: 20080318311
    Abstract: An encapsulated bacteriophage formulation and a method for preparing encapsulated bacteriophage formulation is provided. The method for producing the encapsulated bacteriophage composition involves injection of a molten coating substance comprising stearic acid and palmitic acid present at a ratio of 50:50, into a granulator chamber containing immobilized bacterio-phages. The immobilized bacteriophage are agitated by rotation of a base of the chamber and swept by a flow of air at a temperature of between 10° C. and 50° C.
    Type: Application
    Filed: November 2, 2005
    Publication date: December 25, 2008
    Applicant: GANGAGEN LIFE SCIENCES INC.
    Inventors: Kishore Murthy, Rainer Engelhardt
  • Publication number: 20080141472
    Abstract: The invention relates to a mobile floor-cleaning appliance having a housing in which a cleaning tool is mounted, and having a handle holder which is mounted on the housing and is adapted to be connected to a handle in order to guide the appliance along a floor surface which is to be cleaned.
    Type: Application
    Filed: December 27, 2007
    Publication date: June 19, 2008
    Applicant: Alfred Kaercher GmbH & Co. KG
    Inventors: Roland Jeutter, Rainer Engelhardt
  • Publication number: 20080038322
    Abstract: Stabilized bacteriophage compositions, and methods for preparing stabilized bacteriophage compositions are provided. The method for producing an antibacterial composition involves adsorbing an aqueous solution of one or more bacteriophages, or one or more phage components, onto a matrix to produce a composition, and drying the composition to produce the antibacterial composition. An antibacterial composition comprising one or more strain of bacteriophage, or one or more phage component, adsorbed onto a matrix is also provided. The antibacterial composition may also be encapsulated. The antibacterial composition, or the encapsulated antibacterial composition, may be used within a cream, lotion or gel, be admixed with a pharmaceutical carrier and administered topically, orally, nasally, used as a powdered inhalant, or the antibacterial composition or encapsulated antibacterial composition, may be added to a feed for animal, aquatic or avian uses.
    Type: Application
    Filed: November 2, 2005
    Publication date: February 14, 2008
    Inventors: Kishore Murthy, Rainer Engelhardt