Patents by Inventor Wolfgang Ludwig

Wolfgang Ludwig 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: 20050051365
    Abstract: A drill head for use in drilling bores in mines and tunnels has a bit and at least one suction opening (5) for removing drillings and having a crushing profile.
    Type: Application
    Filed: July 26, 2004
    Publication date: March 10, 2005
    Inventors: Roland Gienau, Wolfgang Ludwig, Erich Leibhard
  • Publication number: 20050047874
    Abstract: An anchor (1) comprising an anchor tube (2) and an inner tube (3) arranged in the anchor tube (2) for receiving a dispensable chemical mass (4). The anchor tube (2) has a first end (5) with a drilling head (6) and a second trailing end (7), at which a drilling machine can be coupled for rotary driving of the anchor (1). The anchor (1) further has a centering assembly with a first centering element (11) and a second centering element (21), which hold the inner tube (3) both radially and axially aligned in the anchor tube (2) by means of radial stop surfaces (17, 18) and axial stop surfaces (16, 26).
    Type: Application
    Filed: July 29, 2004
    Publication date: March 3, 2005
    Inventors: Wolfgang Ludwig, Erich Leibhard
  • Publication number: 20050025578
    Abstract: A self-drilling rock anchor includes an anchor tube (2), a drill head (6) provided at the first end (5), an outer thread (8) provided at least in a region of the second, free end (7) of the anchor tube and an adapter (11) releasably connectable with the anchor tube (2) and having an inner thread (17) for engaging the outer thread (8) of the anchor tube (2), a screw stop (14), and a quick-intervention element (15) connectable with a rotatable chuck of a drilling tool the rock anchor is driven-in with.
    Type: Application
    Filed: July 29, 2004
    Publication date: February 3, 2005
    Inventors: Wolfgang Ludwig, Erich Leibhard
  • Publication number: 20040206553
    Abstract: An attachment element (1;51), includes a boring head (5), a hollow cylindrical receiving body (2; 53) having, at its end (4) facing in a setting direction (S) of the attachment element (1; 51), a recess for receiving the boring head (5) and at its opposite end (6), an engagement element (7), the attachment element further having at least one outlet opening (10.1; 10.2) through which a mortar mass located in the receiving body (2; 53) is squeezed out under a pressure applied by a piston (27), a channel section (29) extending between the mortar mass and the at least one outlet opening (10.1; 10.2), and an inner tube (21; 52) arranged in the receiving body (2; 53) at a predetermined distance from an inner wall of the receiving body (2; 53) for forming at least one suction channel (22; 42.1; 42.2) and in which the mortar mass and the channel section (29) are arranged.
    Type: Application
    Filed: January 20, 2004
    Publication date: October 21, 2004
    Inventors: Erich Leibhard, Robert Gienau, Wolfgang Ludwig
  • Publication number: 20040207397
    Abstract: The invention relates to a device for setting an operating point of a magnetic field sensor having a periodic characteristic, in particular for a device for detecting a magnetic field and/or flux, having a SQUID as magnetic field sensor and a control unit which is connected downstream of the SQUID, has a control time constant (t) and has a feedback loop which acts on the SQUID and is designed such that it is active about a number of operating points of the SQUID, where flux quantum pump means are provided which are assigned to the SQUID, have a signal generation unit for generating a control and/or regulation signal for the SQUID and are designed such that, in order to pump at least one flux quantum into and out of the SQUID, a signal form of the control and/or regulation signal, generated by the signal generation unit, is different and, referred to a rising and a falling edge of a signal form, is unsymmetrical, where in each case only one of the edges of a signal form is short referred to the control time co
    Type: Application
    Filed: February 19, 2004
    Publication date: October 21, 2004
    Inventors: Christoph Ludwig, Wolfgang Ludwig
  • Publication number: 20040166229
    Abstract: The water holding capacity of meat is improved by agitating the meat at an alleged temperature with the processing solution and by maintaining the alleged temperature with precision. A preferred temperature is in the range of 45° to 60° F. and the agitation is preferably a massaging action after injection of the liquid into the meat.
    Type: Application
    Filed: February 12, 2004
    Publication date: August 26, 2004
    Applicant: WOLF-TEC INC.
    Inventor: Wolfgang Ludwig
  • Publication number: 20040142076
    Abstract: The water holding capacity of meat is improved by agitating the meat at an alleged temperature with the processing solution and by maintaining the agitation temperature with precision. A preferred temperature is in the range of 45° to 60° F. and the agitation is preferably a massaging action after injection of the liquid into the meat. The heating or agitation at the elevated temperature can be carried out in one vessel while the subsequent cooling is carried out in at least one second vessel.
    Type: Application
    Filed: January 6, 2004
    Publication date: July 22, 2004
    Applicant: WOLF-TEC INC.
    Inventor: Wolfgang Ludwig
  • Patent number: 6730341
    Abstract: The water holding capacity of meat is improved by agitating the meat at an alleged temperature with the processing solution and by maintaining the agitation temperature with precision. A preferred temperature is in the range of 45° to 60° F. and the agitation is preferably a massaging action after injection of the liquid into the meat. The heating or agitation at the elevated temperature can be carried out in one vessel while the subsequent cooling is carried out in at least one second vessel.
    Type: Grant
    Filed: November 28, 2001
    Date of Patent: May 4, 2004
    Assignee: Wolf-Tec Inc.
    Inventor: Wolfgang Ludwig
  • Patent number: 6662712
    Abstract: Pale, soft and exudative parts of bodies of meat are rendered substantially indistinguishable from other parts of the meat bodies by massaging a brine or marinade into the meat utilizing a paddle massager in which the lifting sides of the paddle are provided with formations, e.g bars, which promote the lifting action. The opposite sides of the paddles may remain smooth.
    Type: Grant
    Filed: March 8, 2002
    Date of Patent: December 16, 2003
    Assignee: Wolf-Tec Inc.
    Inventor: Wolfgang Ludwig
  • Patent number: 6655889
    Abstract: A substantially cylindrical washer having two arch-shaped channels 7, on a face on the bore hole side of the washer, wherein said channels connect an opening 2 with a through passage 3. The opening 2 is configured for the passage of an anchor rod and the through passage 3 is configured for filling a mortar mass into the bore hole. The channels 7 open relative to the bore hole and include a substantially semi-circular cross-section to assure the high tensile strength of the washer.
    Type: Grant
    Filed: March 7, 2002
    Date of Patent: December 2, 2003
    Assignee: Hilti Aktiengesellschaft
    Inventors: Wolfgang Ludwig, Erich Leibhard
  • Patent number: 6598470
    Abstract: Method for the testing of the exhaust gas recirculation system of an internal combustion engine that returns exhaust gas at an exhaust gas recirculation rate from the exhaust line to the intake line, in which a specific adjustment of the exhaust gas recirculation rate is set, the NOx concentration in the exhaust gas is measured and in the absence of a differential concentration varying as a function of the adjustment of the exhaust gas recirculation rate, a defect of the exhaust gas recirculation system is diagnosed.
    Type: Grant
    Filed: August 13, 2001
    Date of Patent: July 29, 2003
    Assignee: Siemens Aktiengesellschaft
    Inventors: Wolfgang Ludwig, Corinna Pfleger, Hong Zhang
  • Publication number: 20030068209
    Abstract: A drilling head including a base body (1), a bit (2) securable in a recess (10) formed in the base body (1) at the end of the base body (1) and facing in a drilling direction (B), and guide elements for guiding the base body and the bit relative to each other in a direction transverse to the drilling direction.
    Type: Application
    Filed: August 29, 2002
    Publication date: April 10, 2003
    Inventors: Erich Leibhard, Wolfgang Ludwig
  • Publication number: 20020168633
    Abstract: The invention concerns a single-stranded nucleotide fragment comprising at least a sequence of 12 contiguous nucleotide patterns, belonging to a 23S ribosome RNA strand of the species of the Chlamydia genus or to is complementary strand, said sequence being selected in any one of the following groups consisting of said RNA zones: Group I: 451-472, 542-570, 596-623, 731-756, 878-890, 996-1020, 1061-1094, 1123-1186, 1857-1880, 2234-2307, 2341-2370; Group II: 420-450, 473-514, 694-713, 756-790, 842-857, 927-937, 1231-1248, 1241-1319, 1371-1381, 1880-1895, 1943-1961, 2151-2182; Group III: 404-426, 436-457, 466-515, 683-722, 747-808, 817-863, 891-955, 1024-1055, 1208-1251, 1315-1350, 1407-1548, 1364-1388, 1576-1622, 1891-1918, 2148-218; the first number corresponding to the position of the first nucleotide of said zone relative to the 23S ribosome RNA nucleotide sequence of serotype A of Chlamydia trachomatis, SEQ ID NO:55, selected as reference sequence, and the second number corresponding to the position of the
    Type: Application
    Filed: March 4, 1999
    Publication date: November 14, 2002
    Inventors: CLAUDE MABILAT, KARL-HEINZ SCHLEIFER, WOLFGANG LUDWIG
  • Publication number: 20020139254
    Abstract: Pale, soft and exudative parts of bodies of meat are rendered substantially indistinguishable from other parts of the meat bodies by massaging a brine or marinade into the meat utilizng a paddle massager in which the lifting sides of the paddle are provided iwth formations, e.g bars, whcih promote the lifting action. The opposite sides of the paddles may remain smooth.
    Type: Application
    Filed: March 8, 2002
    Publication date: October 3, 2002
    Inventor: Wolfgang Ludwig
  • Patent number: 6457910
    Abstract: A tubular anchor includes a tubular member (1, 21) with a drilling head (2, 22) at one of its end, a load application element (3) extending along a portion of the tubular member opposite the one end, opening (5, 23) provided in a region of the drilling head. The tubular anchor also includes at least one, substantially cylindrical, hollow element (7, 24, 25) for receiving a mortar mass (4, 37, 38) and closed, at its opposite ends, with two displaceable pistons (8, 9; 31, 32, 33, 39), respectively, with one of the pistons being received in a piston-receiving region of the at least one mortar-mass receiving element and facing in a setting direction (S), (6, 35) and at least one through-opening (11, 34) spaced from a free end of the piston-receiving region (6, 35) by a distance (a, b) corresponding at least to a length (l) of the piston (8, 32) received therein.
    Type: Grant
    Filed: April 9, 2001
    Date of Patent: October 1, 2002
    Assignee: Hilti Aktiengesellschaft
    Inventors: Wolfgang Ludwig, Erich Leibhard
  • Publication number: 20020125647
    Abstract: A substantially cylindrical washer having two arch-shaped channels 7, on a face on the bore hole side of the washer, wherein said channels connect an opening 2 with a through passage 3. The opening 2 is configured for the passage of an anchor rod and the through passage 3 is configured for filling a mortar mass into the bore hole. The channels 7 open relative to the bore hole and include a substantially semi-circular cross-section to assure the high tensile strength of the washer.
    Type: Application
    Filed: March 7, 2002
    Publication date: September 12, 2002
    Inventors: Wolfgang Ludwig, Erich Leibhard
  • Patent number: 6438947
    Abstract: Values for a raw NOx concentration of an internal combustion engine, that are stored on an operating point basis, are read out from a characteristic map and an adaptation of variations in concentration takes place on the basis of an output signal of an NOx sensor provided downstream of a NOx storage catalyst, either by modification of a reduction factor, which serves for the calculation of a corrected raw NOx concentration from the raw NOx concentration, or by direct correction of the values read out from the characteristic map for the raw NOx concentration with a raw concentration correction factor.
    Type: Grant
    Filed: May 9, 2001
    Date of Patent: August 27, 2002
    Assignee: Siemens Aktiengesellschaft
    Inventors: Wolfgang Ludwig, Corinna Pfleger, Hong Zhang
  • Publication number: 20020102341
    Abstract: The water holding capacity of meat is improved by agitating the meat at an alleged temperature with the processing solution and by maintaining the agitation temperature with precision. A preferred temperature is in the range of 45 ° to 60° F. and the agitation is preferably a massaging action after injection of the liquid into the meat. The heating or agitation at the elevated temperature can be carried out in one vessel while the subsequent cooling is carried out in at least one second vessel.
    Type: Application
    Filed: November 28, 2001
    Publication date: August 1, 2002
    Applicant: WOLF-TEC INC.
    Inventor: Wolfgang Ludwig
  • Publication number: 20020046535
    Abstract: A tubular anchor to be inserted into a bore formed in a constructional structure and including a hollow anchor body (1), and a trapezoidal thread-shaped profile (2) provided on at least a portion of an outer surface of the anchor body (1) and having a crest region (3) and a root region (4) both extending parallel to a longitudinal axis of the anchor body (1), with the at least flanks of a trapezoidal cross-section of the profile (2) remote from an end of the anchor body (1) facing in a setting direction being inclined with respect to the longitudinal axis of the anchor body (1) at an angle (&agr;) from 10° to 45°.
    Type: Application
    Filed: April 9, 2001
    Publication date: April 25, 2002
    Inventors: Wolfgang Ludwig, Erich Leibhard
  • Publication number: 20020034424
    Abstract: 1. A tubular anchor including a tubular member (1, 21) having a drilling head (2, 22) at one end at one end thereof, load application means (3) at another opposite end thereof, and at least one outlet opening (5, 23) provided in a region of the drilling head, and at least one, substantially cylindrical, hollow element (7,24, 25) for receiving a mortar mass (4, 37, 38) and closed, at its opposite ends, with two pistons (8, 9; 31, 32, 33, 39), respectively, displaceable along the tubular member (1) with the at least one receiving element (7, 24, 25) having, at its end facing in a setting direction (S), a piston-receiving region (6, 35) and having at least one through-opening (11, 34) spaced from a free end of the piston-receiving region (6, 35) by a distance (a, b) corresponding at least to a length (1) of the piston (8, 32) received therein and measured in a longitudinal direction of the tubular member.
    Type: Application
    Filed: April 9, 2001
    Publication date: March 21, 2002
    Inventors: Wolfgang Ludwig, Erich Leibhard