Abstract: A valve array includes a reservoir containing a pressurized fluid, a non-return valve and a seat valve that is actuatable so as to allow the fluid to flow out of the reservoir. The seat valve is configured as a pilot control valve connected to the reservoir such that, in an open condition of the seat valve, a smaller amount of the fluid flows out of the reservoir via the seat valve and a larger amount of the fluid flows out of the reservoir via the non-return valve.
Abstract: A seal including a tubular carrier body (1) and two annular sealing elements (2, 3), wherein the carrier body (1) on both sides of its front face is respectively enclosed by one of the sealing elements (2, 3) on the side of its outer perimeter forming a seal. At least one of the sealing elements (2, 3) is made of a non-elastomeric high-temperature resistant sealing material.
Type:
Grant
Filed:
August 1, 2012
Date of Patent:
April 28, 2015
Assignee:
Carl Freudenberg KG
Inventors:
Thomas Jäck, Hans Unger, Ralf Heldmann, Reiner Dirr
Abstract: The present invention relates to separators for electrochemical cells comprising (A) at least one layer comprising (a) crosslinked polyvinylpyrrolidone in the form of particles, (b) at least one binder, and (c) optionally a base structure, where the mass ratio of the crosslinked polyvinylpyrrolidone in the form of particles (a) to the sum of the mass of the binders (b) in the layer (A) has a value in the range from 99.9:0.1 to 50:50. The present invention further relates to the use of inventive separators and to apparatuses, especially electrochemical cells, comprising inventive separators.
Type:
Grant
Filed:
February 25, 2013
Date of Patent:
April 7, 2015
Assignees:
BASF SE, Carl Freudenberg KG
Inventors:
Oliver Gronwald, Klaus Leitner, Nicole Janssen, Christoph J. Weber, Michael Roth, Gunter Hauber, Sandra Falusi, Sigrid Geiger, Margitta Berg
Abstract: A non-woven product containing organic and/or mineral particles has a volume density less than 1 and has at least two layers of synthetic fibers or filaments superposed in the Z direction perpendicular to the XY plane of the product, having undergone at least one needling operation, where the non-woven product integrates particulate feedstocks of mineral and/or organic particles distributed in a monomodal or multimodal manner in the product and at least partially coated or encapsulated by binding material that can point-connect the filaments or fibers to one another. At least one population or fraction of organic and/or mineral particles, has a size such that: 3×(?{square root over (SMf)})3?v, preferably 5×(?{square root over (SMf)})3?v, where SMf corresponds to the mean cross-section of the fibers or filaments that form the layers, and v represents the mean individual volume of the organic or mineral particles.
Type:
Grant
Filed:
March 17, 2011
Date of Patent:
April 7, 2015
Assignee:
Freudenberg Politex SA (Societe Anonyme)
Inventors:
Frédéric Rosé, Georges Riboulet, Massimo Migliavacca, Jean-Marc Losser, Robert Groten
Abstract: A filter element for insertion into a housing of a ventilation or air-conditioning system, including a bellows with pleated walls and pleat tips and a front face, which can be faced towards a wall of the housing, wherein a guide duct is allocated to the front face, wherein the guide duct is formed by at least one breakthrough in the pleated walls and/or in a side strip that is hemming the front face, in view of the object to indicate a mechanical coding for a filter element which ensures a unique allocation of a filter element to a housing, wherein the filter element is provided with breakthroughs and wherein the mechanical strength of pleated walls and side strips is impaired as little as possible by the breakthroughs, characterized in that the breakthrough is provided with a reinforcing.
Type:
Grant
Filed:
August 30, 2012
Date of Patent:
March 17, 2015
Assignee:
Carl Freudenberg KG
Inventors:
Uwe Haefner, Dieter Unrath, Roland Dobner
Abstract: An automatic robot for cleaning smooth surfaces includes a base having a traveling device, a water feed line and a water drain line. The traveling device is configured to automatically move the base on a smooth surface to be cleaned. The water feed line is configured to apply water to the smooth surface using a capillary effect. The water drain line is configured to drain dirty water from the smooth surface.
Abstract: An ultrathin, porous, and mechanically stable nonwoven fabric, a method for manufacturing the fabric, and the fabric's use are described. A nonwoven fabric is described having a thickness of less than 30 ?m, which is chemically and/or thermally bonded, whose maximum tensile load in at least one direction is at least 15 N/5 cm, whose stretching in this direction at maximum tensile load is 35% at the most, and which has a porosity of at least 25%. This nonwoven fabric may be used as a separator material or as a carrier material for diaphragms.
Type:
Grant
Filed:
July 16, 2004
Date of Patent:
February 24, 2015
Assignee:
Carl Freudenberg KG
Inventors:
Peter Kritzer, Raoul Farer, Guenter Frey, Michael Appelgruen, Rolf-Peter Schwoebel
Abstract: The invention relates to a mopping device (1) having a mop plate (2), or which a mop cover (3) can be fastened in a replaceable manner, wherein a measuring device (4) for detecting the residual moisture present in the mop cover (3) is integrated in the mop plate (2).
Abstract: A seal of a fastening element, having the fastening element and a washer, wherein the fastening element and the washer are arranged coaxially and axially adjacent to one another, wherein the washer has a sealing bead of a rubber-elastic sealing material on the outer circumference, and wherein the sealing bead contacts the fastening element underside in a sealing manner during the correct use of the seal. The fastening element has a flange on the underside, which axially faces the washer, wherein the a washer top side axially faces the flange, wherein the flange underside and the washer top side abut in a sealing manner during the correct use of the seal, wherein the flange underside and the washer top side are substantially congruent, and wherein the sealing bead abuts the outer circumferential boundary of the flange underside in a sealing manner.
Type:
Application
Filed:
November 7, 2012
Publication date:
January 22, 2015
Applicant:
CARL FREUDENBERG KG
Inventors:
Frank Lauer, Julia Eckstein, Christian Mitschkal, Thomas Kramer
Abstract: A gaiter includes a bellows formed of a rubber resilient material and extending in an axial direction from a first end to a second end. The bellows includes at least two pocket-shaped bulges on an end face at the first end of the bellows that are formed integrally with the bellows from the rubber resilient material. The bulges extend radially inwards and in a circumferential direction of the end face. Each of the bulges have two flanks disposed adjacent to one another with an axial spacing therebetween. The bulges are configured to be placed in a sealing manner on a congruently configured pivot of a joint.
Abstract: A cleaning container (1) for a cleaning device (4) is provided. The cleaning device has a handle (6) and a cleaning head (5). The cleaning container includes a main chamber (3) for the cleaning and storing of the cleaning device (4) and a secondary chamber (13), connected to the main chamber (3) via an access opening (16). A device for the action of the cleaning fluid on the cleaning device (4) in the main chamber (3) is provided. The main chamber (3) and the second chamber (13) are designed as separate container elements (2, 12), which are connected to one another in a detachable manner.
Type:
Grant
Filed:
October 18, 2007
Date of Patent:
January 13, 2015
Assignee:
Carl Freudenberg KG
Inventors:
Norbert Weis, Ralf Juergens, David McKnight
Abstract: The invention relates to a biodegradable fleece containing (i) at least one polymer for inducing primary haemostasis, (ii) at least one non-proteinogenic, low-molecular, water-soluble activator of secondary haemostasis, and (iii) at least one non-proteinogenic, low-molecular, water-soluble inhibitor of fibrinolysis. The invention also relates to a method for producing a biodegradable fleece, in which (i) a fluidised fiber raw material, and additives if applicable, is placed in a container, (ii) the container is made to rotate, (iii) the fluidised fiber raw material is dispensed from the container by means of centrifugal forces, whereby fibers or filaments are formed, and (iv) a biodegradable fleece is produced from the fibers or filaments. The invention also relates to the use of said biodegradable fleece as a local haemostatic agent.
Type:
Application
Filed:
January 23, 2013
Publication date:
January 8, 2015
Applicants:
CARL FREUDENBERG KG, HERAEUS MEDICAL GMBH
Inventors:
Sebastian Vogt, Ekaterini Copanaki, Dirk Grafahrend, Denis Reibel, Daniel Neumüller
Abstract: A dynamic seal advantageously utilizes a groove on the active side or surface of the seal to capture a leaked lubricant and hydrodynamically pump the lubricant back into the lubricated side of the seal. The groove stops short of the leading edge of the seal that faces the lubricant side thereby forming a static dam between the termination point of the groove and the seal edge. When the fluid pressure within the groove adjacent the static dam exceeds the opening pressure for the seal lip, the lubricant within the groove is pumped back into the lubricant side of the seal. The groove can have an induction zone wherein the fluid pressure rise is gradual and a booster zone wherein the fluid pressure rise is relatively faster than in the induction zone. The booster zone is disposed adjacent the static dam.
Abstract: A shaft-sealing device comprising a sealing ring having a seal secured thereto, and a protective member engaged with the sealing ring. The said protective member includes a cylindrical member having a shaft-engaging surface and a seal-engaging surface, and an annular flange extends radially away from the shaft. The shaft-engaging surface is operable to be attached to the shaft during operation of the device, and the seal-engaging surface is operable to be in sealing contact with the seal during operation of the device. The annular flange is operable to engage the sealing ring.
Abstract: A dynamic lip seal is provided for sealing between a housing and a shaft and with a fluid medium to be sealed on an oil side and air on an air side of the seal. The seal includes a seal lip extending from a seal body and including a shaft contact portion adapted for engagement with the shaft and including a static band and a first set of spiral grooves disposed on an oil side of the static band, and a second set of spiral grooves on an air side of the static band. The first and second sets of spiral grooves are both configured to pump oil toward the static band when the shaft is rotated in a first direction, and the first and second sets of spiral grooves are both configured to pump oil away from the static band when the shaft is rotated in a second direction.