Patents by Inventor David Scherrer

David Scherrer 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).

  • Publication number: 20200350806
    Abstract: The invention relates to a method and a device for the automated manufacturing of a semi-finished product of a stator (1) of an electrical machine. A substantially hollow-cylindrical laminated core (2) with a plurality of stacked sheet metal segments (2?) defining a main axis (6) is provided. Rod-shaped conductor elements (3, 4) for the construction of an electrical winding protrude with at least one of their longitudinal ends (11, 12; 13, 14) with respect to the first and/or second end face (7, 8) of the laminated core (2), so that they form conductor protrusions (15, 16; 17, 18) with respect to the laminated core (2) at at least one of the end faces (7, 8) of the laminated core (2). These conductor protrusions (15, 16; 17, 18) of the conductor elements (3, 4) are bent in the direction of the circumferential direction of the hollow-cylindrical laminated core (2) by means of at least one bending tool (25, 25; 26, 26?) mounted rotatably about an axis of rotation (27).
    Type: Application
    Filed: August 10, 2018
    Publication date: November 5, 2020
    Inventors: Andreas Falkner, Mladen-Mateo Primorac, David Scherrer
  • Publication number: 20200350807
    Abstract: The invention relates to a method for automatedly manufacturing a stator component, as well as a device for manufacturing a stator component comprising at least one hollow-cylindrical stator pack having a plurality of rod-shaped electrical conductor elements inserted into the stator pack, said conductor elements projecting substantially to the same distance out of the stator pack at the base side as conductor ends while at the front side the conductor ends project out of the stator pack according to their respectively prescribed length, and wherein the stator pack has at least one positioning mark, which is placed in the outer lateral surface of the stator pack and extends in the direction of the main axis of the stator pack and which serves for orienting and positioning the stator pack with respect to at least one forming tool.
    Type: Application
    Filed: August 10, 2018
    Publication date: November 5, 2020
    Inventors: Andreas Falkner, Mladen-Mateo Primorac, David Scherrer
  • Publication number: 20200328661
    Abstract: The invention relates to a method for producing a semi-finished product of a stator (1), wherein the method comprises the following method steps: providing a laminated core (2), wherein the laminated core (2) has a plurality of receiving grooves (5) distributed in a circumferential direction; providing a plurality of conductor elements (3, 4); inserting the conductor elements (3, 4) into at least some of the receiving grooves (5), wherein the conductor elements (3, 4) are inserted into the receiving grooves (5) in such a way that conductor element overhangs (11, 12) of the conductor elements (3, 4) protrude beyond at least one of the axial end faces (7, 8) of the laminated core (2) in the axial direction; bending the conductor element overhangs (11, 12) in the radial direction (22); bending the conductor element overhangs (11, 12) of the conductor elements (3, 4) in the circumferential direction (16, 17).
    Type: Application
    Filed: November 27, 2018
    Publication date: October 15, 2020
    Inventors: Andreas Falkner, Mladen-Mateo Primorac, David Scherrer
  • Publication number: 20200313525
    Abstract: The invention relates to a device and method for forming a conductor pack provided for inserting into a stator or rotor, wherein the device in this regard comprises an inner holding device with receiving portions arranged along an outer circumference of the inner holding device and provided for receiving, at least in sections, first rod sections with first conductor ends of substantially U-shaped conductor elements, a positioning device for pre-positioning second rod sections with second conductor ends of the conductor elements, which second rod sections are connected to the first rod sections by a substantially arc-shaped connection section, at least one gripping device arrangeable around the inner holding device in the circumferential direction with gripping elements adjustable in the radial direction towards the inner holding device, said gripping device being formed for gripping rod section pairs, each formed from a pre-positioned second rod section and an adjacent, first rod section, and, in this regard,
    Type: Application
    Filed: October 25, 2018
    Publication date: October 1, 2020
    Inventors: Andreas Falkner, Mladen-Mateo Primorac, David Scherrer
  • Publication number: 20200195107
    Abstract: The invention relates to a method as well as a device for positioned holding of at least one layer (9, 10) of several conductor elements (3, 4) arranged distributed over the circumference of a laminated core (2) and formed as bars in relative position with respect to the laminated core (2) accommodating the conductor elements (3, 4) in each case in a receiving groove (5) extending between a first front face (7) and a second front face (8). For this purpose, all conductor elements (3, 4) of the at least one layer (9, 10) are each acted upon at their end portions (11, 12; 13, 14) protruding beyond the laminated core (2) by at least one pressure element (21, 22), which is adjustable in the radial direction, of a pressure device (20). The laminated core (2) is held in position by a holding device (17).
    Type: Application
    Filed: August 8, 2018
    Publication date: June 18, 2020
    Inventors: Andreas Falkner, Mladen-Mateo Primorac, David Scherrer
  • Publication number: 20200195102
    Abstract: The invention relates to a method as well as a device (16) for the positioned holding of a laminated core (2) including at least one layer (9, 10) accommodated in the laminated core (2), which layer is made up of several conductor elements (3, 4) arranged spread over the circumference of the laminated core (2) and configured as rods for forming a stator or a rotor of an electric machine. The first front face (7) of the laminated core (2) comes into flush contact with first stop faces (21) of first support elements (20) and the first support elements (20) are readjusted into open spaces between the conductor elements (3, 4). The second stop faces (23) of second support elements (22) then come into flush contact with a second front face (8) of the laminated core (2) and the second support elements (22) are also readjusted into the open spaces between the conductor elements (3, 4). This allows for the laminated core (2) to be held in a positioned manner.
    Type: Application
    Filed: August 9, 2018
    Publication date: June 18, 2020
    Inventors: Andreas Falkner, Mladen-Mateo Primorac, David Scherrer
  • Patent number: 6886713
    Abstract: A truck bed toolbox is provided including a housing having an open top, and a pair of cover assemblies mounted on the housing for covering the open top of the housing. Each cover assembly includes a frame and a cover. The frame is mounted on the housing adjacent to the open top. The frame includes a pair of elongated sides and a pair of elongated ends, with a first one of the sides of the frame being pivotally mounted on the housing. One of the end edges of the cover is pivotally mounted on an inboard one of the ends of one of the frames. The covers of the cover assemblies are each pivotable about a first axis and a second axis, the first axis being oriented substantially perpendicular to the second axis.
    Type: Grant
    Filed: July 19, 2002
    Date of Patent: May 3, 2005
    Inventor: David A. Scherrer