Patents by Inventor Marcus Karl PFEIFFER

Marcus Karl PFEIFFER 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: 11168713
    Abstract: A valve arrangement for supplying pressure medium to a hydraulic consumer has two utility ports (A, B) for fluid connection to the consumer and has a first control valve. The first control valve (20) has a first intake (24) via which a first intake flow from the first utility port (A) to the consumer (10) is controllable, has a first return control orifice (26) via which a first return flow (28) from the consumer (10) via the second utility port (B) is controllable simultaneously with the first intake (24), has a second intake (34) via which a second intake flow from the second utility port (B) to the consumer (10) is controllable, and having a second return control orifice (36), via which a second return flow (38) from the consumer (10) via the first utility port (A) is controllable simultaneously with the second intake (34). A second control valve (40) has an intake control orifice (42) used to control the respective intake (24, 34) of the first control valve (20).
    Type: Grant
    Filed: April 9, 2019
    Date of Patent: November 9, 2021
    Assignee: HYDAC MOBILHYDRAULIK GMBH
    Inventors: Peter Bruck, Marcus Karl Pfeiffer, Christian Stauch, Philippe Vande Kerckhove
  • Publication number: 20210062832
    Abstract: A valve arrangement for pressure medium supply of a hydraulic consumer according to the invention, wherein said valve arrangement has two utility ports (A, B) for fluid connection to the consumer, having a first control valve, which has a first intake (24), via which a first intake flow from the first utility port (A) to the consumer (10) is controllable, and having a first return control orifice (26), via which a first return flow (28) from the consumer (10) via the second utility port (B) is controllable simultaneously with the first intake (24), and has a second intake (34), via which a second intake flow from the second utility port (B) to the consumer (10) is controllable, and having a second return control orifice (36), via which a second return flow (38) from the consumer (10) via the first utility port (A) is controllable simultaneously with the second intake (34), and having a second control valve (40) having an intake control orifice (42), which can be used to control the respective intake (24,
    Type: Application
    Filed: April 9, 2019
    Publication date: March 4, 2021
    Inventors: Peter BRUCK, Marcus Karl PFEIFFER, Christian STAUCH, Philippe VANDE KERCKHOVE
  • Patent number: 10119558
    Abstract: A control device, in particular for hydraulically controlling components of mobile working machines, has a pressure supply connection (P) and a tank or return connection (T) in addition to two user connections (A, B). Control and/or regulating valves (10, 14, 16, 18) are connected between the individual connections (P, T, A, B). Two control lines (C, Z) can control at least one of the control and/or regulating valves. A modular-type functional block (24, 26) is connected to at least one of the control lines (C, Z).
    Type: Grant
    Filed: September 24, 2014
    Date of Patent: November 6, 2018
    Assignee: HYDAC FILTERTECHNIK GMBH
    Inventors: Sascha Alexander Biwersi, Marcus Hettiger, Marcus Simon Specks, Christoph Stoenner, Marcus Karl Pfeiffer, Erik Lautner
  • Publication number: 20160258450
    Abstract: The invention relates to a control device, in particular for hydraulically controlling components of mobile working machines, consisting of at least one pressure supply connection (P) and a tank or return connection (T) in addition to two user connections (A, B) and control and/or regulating valves (10, 14, 16, 18) which are connected between the individual connections (P, T, A, B), in addition to two control lines (C, Z) which can control at least one of the control and/or regulating valves. Said invention is characterized in that a modular-type functional block (24, 26) is connected to at least one of the control lines (C, Z).
    Type: Application
    Filed: September 24, 2014
    Publication date: September 8, 2016
    Inventors: Sascha Alexander BIWERSI, Marcus HETTIGER, Marcus Simon SPECKS, Christoph STOENNER, Marcus Karl PFEIFFER, Erik LAUTNER