Patents by Inventor Christian Kellermann

Christian Kellermann 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: 9294808
    Abstract: A transmission signal having a sequence of logical frames embed therein, is constructed such that each logical frame has a useful data section, wherein consecutive access units of an access unit stream are consecutively inserted into the useful data section of the sequence of logical frames, wherein each logical frame into which a begin of an access unit falls, has an access unit table having, per begin of the access units falling into the respective logical frame, a pointer pointing thereto.
    Type: Grant
    Filed: March 2, 2012
    Date of Patent: March 22, 2016
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Alexander Zink, Christian Kellermann, Hussain Mohammed, Nikolaus Faerber, Herbert Thoma
  • Patent number: 9181913
    Abstract: Starter for starting a combustion motor for a power tool includes a rotating tension means roller, onto which a tension means can be wound and which via active connection is connected to a entrainment means of the combustion motor in order to introduce a rotating movement into the combustion motor. The active connection has at least one double crank gear between the tension means roller and the entrainment means.
    Type: Grant
    Filed: May 30, 2012
    Date of Patent: November 10, 2015
    Assignee: MAKITA CORPORATION
    Inventor: Christian Kellermann
  • Patent number: 9080492
    Abstract: An exhaust system for an internal combustion engine includes an outer housing having a front shell and a rear shell, a prechamber in which exhaust gas from the combustion chamber enters, and an intermediate shell having a front and back as well as a catalytic converter holder. A catalytic converter element is arranged on the catalytic converter holder where an exhaust port directs exhaust gas from the catalytic converter element. To place the center of gravity of the exhaust system near the internal combustion engine or cylinder, the intermediate shell forms the prechamber and the exhaust port.
    Type: Grant
    Filed: August 16, 2011
    Date of Patent: July 14, 2015
    Assignee: DOLMAR GmbH
    Inventor: Christian Kellermann
  • Patent number: 8944021
    Abstract: The invention pertains to a device for starting an internal combustion engine for handheld equipment such as chain saws, lawn mowers, lawn trimmers and the like, or for vehicles such as mopeds, boats or miniature aircraft. The starting device features an output element into which a starter torque can be introduced when the starting device is actuated. The output element is functionally connected to a crankshaft of the internal combustion engine in order to introduce a crankshaft torque therein. The functional connection between the output element and the crankshaft introduces variable crankshaft torque into the crankshaft depending on the rotational angle of the crankshaft at a constant starter torque. This advantageously improves force or torque characteristics for largely operating the starter device independently of the compression phase and the expansion phase of the internal combustion engine.
    Type: Grant
    Filed: October 4, 2010
    Date of Patent: February 3, 2015
    Assignee: DOLMAR GmbH
    Inventor: Christian Kellermann
  • Patent number: 8894043
    Abstract: In order to create an electrically activated carburettor for petrol engines with an air funnel for sucking in fuel from a fuel line leading into the air funnel which is connected to a fuel chamber and between fuel chamber and orifice in the air funnel a fuel jet for adjusting a fuel quantity that can be sucked in from the fuel chamber because of vacuum in the air funnel that can be flexibly adapted as carburettor more preferably for power implements, which overcomes the abovementioned disadvantages of the prior art and has a simple, sturdy construction which allows constant long-term behavior, it is proposed that in series connection with the fuel jet at least two Tesla diodes are provided, between which a pumping chamber with a pumping unit is located.
    Type: Grant
    Filed: May 27, 2010
    Date of Patent: November 25, 2014
    Assignee: Makita Corporation
    Inventor: Christian Kellermann
  • Patent number: 8862626
    Abstract: The navigation overhead and/or the content managing/updating overhead is reduced by providing link objects with condition data being associated with the link items of the link objects so that, depending on a check as to whether the condition data is fulfilled or not, an automatic handling of a link object may be performed. For example, the automatic handling may have an automatic appointing an object ID referred to by a link item of the link object that has condition data associated therewith which is fulfilled, as a newly-selected object ID.
    Type: Grant
    Filed: October 14, 2011
    Date of Patent: October 14, 2014
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der Angewandten Forschung E.V.
    Inventors: Christian Kellermann, Bernd Linz, Markus Prosch, Alexander Zink
  • Patent number: 8844672
    Abstract: The invention relates to a two-stroke engine for an engine-driven tool, including a muffler, especially for a manually operated engine-driven tool such as a maintenance device for gardens or green spaces, for a hand-held tool such as a chain saw, a hand-held circular saw or an angle grinder or for a small motorcycle, a boat engine and the like, wherein the flow channel between the muffler inlet and the first chamber is formed so as to promote flow such that the exhaust gas entering the muffler inlet mainly enters the first chamber due to its inertia and once the first chamber is full flows back again. The counterpressure of the exhaust gas is produced at a point in time in which the piston releases the outlet and the fuel-air mixture at least for its most part has entered the combustion chamber through the at least one transfer passage.
    Type: Grant
    Filed: March 7, 2012
    Date of Patent: September 30, 2014
    Assignee: Makita Corporation
    Inventor: Christian Kellermann
  • Patent number: 8788693
    Abstract: When generating a data stream, text data, an escape-start-sequence, a first number of data units, an escape-continuation-sequence and a second number of data units are entered into a data stream. A base decoder displays only the text data and skips the data units referenced by the escape-start-sequence and the escape-continuation-sequence, while an extension decoder reads those data units and processes them together.
    Type: Grant
    Filed: January 10, 2008
    Date of Patent: July 22, 2014
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Alexander Zink, Markus Prosch, Olaf Korte, Christian Kellermann, Bernd Linz
  • Patent number: 8782273
    Abstract: When generating a data stream, text data, an escape-start-sequence, a first number of data units, an escape-continuation-sequence and a second number of data units are entered into a data stream. A base decoder displays only the text data and skips the data units referenced by the escape-start-sequence and the escape-continuation-sequence, while an extension decoder reads those data units and processes them together.
    Type: Grant
    Filed: July 9, 2012
    Date of Patent: July 15, 2014
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Alexander Zink, Markus Prosch, Olaf Korte, Christian Kellermann, Bernd Linz
  • Publication number: 20130319789
    Abstract: The invention relates to a two-stroke engine for an engine-driven tool, including a muffler, especially for a manually operated engine-driven tool such as a maintenance device for gardens or green spaces, for a hand-held tool such as a chain saw, a hand-held circular saw or an angle grinder or for a small motorcycle, a boat engine and the like, wherein the flow channel between the muffler inlet and the first chamber is formed so as to promote flow such that the exhaust gas entering the muffler inlet mainly enters the first chamber due to its inertia and once the first chamber is full flows back again. The counterpressure of the exhaust gas is produced at a point in time in which the piston releases the outlet and the fuel-air mixture at least for its most part has entered the combustion chamber through the at least one transfer passage.
    Type: Application
    Filed: March 7, 2012
    Publication date: December 5, 2013
    Applicant: MAKITA CORPORATION
    Inventor: Christian Kellermann
  • Patent number: 8595285
    Abstract: A text-based information transmission is made complying with a greater number of transport-layer systems by performing the fragmentation and de-fragmentation of the information object at the application-layer side rather than at transport-layer domain. By this manner, the text-based information service is not restricted to transport-layer systems accommodating the maximum size of the information objects. Rather, it is possible to adjust the fragmentation size of the fragments into which the information objects are fragmented to the maximum transport packet content section size offered by the transport layer within the application layer. The fragment size may even vary in a time-varying manner responsive to instructions from the transport layer posed onto the transport layer in consequence of time-varying transmission channel characteristics, for example.
    Type: Grant
    Filed: October 14, 2011
    Date of Patent: November 26, 2013
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Christian Kellermann, Bernd Linz, Markus Prosch, Alexander Zink
  • Patent number: 8540051
    Abstract: A silencer for a two-stroke motor of a power tool, including a silencer inlet to which adjoins a flow channel of channel length so that the flow channel can be connected to an outlet of a combustion chamber of the two-stroke motor, whereby the flow channel at the channel end opposite the silencer inlet opens out into a first chamber of depth, between the silencer inlet and the first chamber the flow channel is so flow-beneficially designed, that due to its mass inertia the exhaust gas flowing into the silencer inlet predominantly flows into the first chamber and after filling the first chamber flows back again thereby creating a counterpressure in the direction of the combustion chamber, so that in spite of small geometric dimensions it provides a periodically actin counterpressure on the outlet of the combustion chamber of the two-stroke motor.
    Type: Grant
    Filed: February 21, 2012
    Date of Patent: September 24, 2013
    Assignee: Makita Corporation
    Inventor: Christian Kellermann
  • Publication number: 20130000587
    Abstract: Starter for starting a combustion motor for a power tool includes a rotating tension means roller, onto which a tension means can be wound and which via active connection is connected to a entrainment means of the combustion motor in order to introduce a rotating movement into the combustion motor. The active connection has at least one double crank gear between the tension means roller and the entrainment means.
    Type: Application
    Filed: May 30, 2012
    Publication date: January 3, 2013
    Applicant: MAKITA CORPORATION
    Inventor: Christian KELLERMANN
  • Publication number: 20120275541
    Abstract: When generating a data stream, text data, an escape-start-sequence, a first number of data units, an escape-continuation-sequence and a second number of data units are entered into a data stream. A base decoder displays only the text data and skips the data units referenced by the escape-start-sequence and the escape-continuation-sequence, while an extension decoder reads those data units and processes them together.
    Type: Application
    Filed: July 9, 2012
    Publication date: November 1, 2012
    Applicant: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Alexander ZINK, Markus PROSCH, Olaf KORTE, Christian KELLERMANN, Bernd LINZ
  • Publication number: 20120278498
    Abstract: A transmission signal having a sequence of logical frames embed therein, is constructed such that each logical frame has a useful data section, wherein consecutive access units of an access unit stream are consecutively inserted into the useful data section of the sequence of logical frames, wherein each logical frame into which a begin of an access unit falls, has an access unit table having, per begin of the access units falling into the respective logical frame, a pointer pointing thereto.
    Type: Application
    Filed: March 2, 2012
    Publication date: November 1, 2012
    Inventors: Alexander Zink, Christian Kellermann, Hussain Mohammed, Nikolaus Faerber, Herbert Thoma
  • Publication number: 20120241248
    Abstract: A silencer includes a silencer inlet followed by a flow channel. The inlet can be attached to an outlet of a combustion chamber of a two-stroke engine. The flow channel at the channel end located opposite the silencer inlet leads into a first chamber where a second chamber is provided into which exhaust gas flows through a main outlet branched off the flow channel. The second chamber preferentially encloses the first chamber. The flow channel is flow-favourably moulded between the silencer inlet and the first chamber so that the exhaust gas flowing into the silencer inlet, because of its mass inertia, predominantly flows into the first chamber and, after filling the first chamber, flows back again in the direction towards the combustion chamber. The silencer allows a piston of the engine to include a piston skirt that is substantially designed closed.
    Type: Application
    Filed: March 5, 2012
    Publication date: September 27, 2012
    Applicant: MAKITA CORPORATION
    Inventors: Michael SCHOENFELD, Christian KELLERMANN
  • Publication number: 20120228053
    Abstract: A silencer for a two-stroke motor of a power tool, including a silencer inlet to which adjoins a flow channel of channel length so that the flow channel can be connected to an outlet of a combustion chamber of the two-stroke motor, whereby the flow channel at the channel end opposite the silencer inlet opens out into a first chamber of depth, between the silencer inlet and the first chamber the flow channel is so flow-beneficially designed, that due to its mass inertia the exhaust gas flowing into the silencer inlet predominantly flows into the first chamber and after filling the first chamber flows back again thereby creating a counterpressure in the direction of the combustion chamber, so that in spite of small geometric dimensions it provides a periodically actin counterpressure on the outlet of the combustion chamber of the two-stroke motor.
    Type: Application
    Filed: February 21, 2012
    Publication date: September 13, 2012
    Applicant: MAKITA CORPORATION
    Inventor: Christian KELLERMANN
  • Publication number: 20120185526
    Abstract: A text-based information transmission is made complying with a greater number of transport-layer systems by performing the fragmentation and de-fragmentation of the information object at the application-layer side rather than at transport-layer domain. By this manner, the text-based information service is not restricted to transport-layer systems accommodating the maximum size of the information objects. Rather, it is possible to adjust the fragmentation size of the fragments into which the information objects are fragmented to the maximum transport packet content section size offered by the transport layer within the application layer. The fragment size may even vary in a time-varying manner responsive to instructions from the transport layer posed onto the transport layer in consequence of time-varying transmission channel characteristics, for example.
    Type: Application
    Filed: October 14, 2011
    Publication date: July 19, 2012
    Inventors: Christian Kellermann, Bernd Linz, Markus Prosch, Alexander Zink
  • Publication number: 20120124095
    Abstract: The navigation overhead and/or the content managing/updating overhead is reduced by providing link objects with condition data being associated with the link items of the link objects so that, depending on a check as to whether the condition data is fulfilled or not, an automatic handling of a link object may be performed. For example, the automatic handling may have an automatic appointing an object ID referred to by a link item of the link object that has condition data associated therewith which is fulfilled, as a newly-selected object ID.
    Type: Application
    Filed: October 14, 2011
    Publication date: May 17, 2012
    Inventors: Christian KELLERMANN, Bernd LINZ, Markus PROSCH, Alexander ZINK
  • Patent number: 8172038
    Abstract: A silencer for a two-stroke engine includes a first chamber and a second chamber, wherein a flow channel is provided between an outlet of a combustion chamber and the first chamber. A high charge degree of the combustion chamber has a pressure ratio in the region of the outlet which reduces or prevents an escape of fresh gas from the combustion chamber. The flow channel between the outlet and the first chamber is flow-favorably shaped in such a manner that the exhaust gas that flows out of the outlet because of its mass inertia predominantly flows into the first chamber and following charging of the first chamber flows back again and as a result a back pressure is formed in the direction of the combustion chamber.
    Type: Grant
    Filed: April 13, 2009
    Date of Patent: May 8, 2012
    Assignee: DOLMAR GmbH
    Inventor: Christian Kellermann