Patents by Inventor Robert McClanahan

Robert McClanahan 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: 9115742
    Abstract: Improved connection systems for pinned connections are disclosed. Although the connection systems may be utilized in dragline excavating systems, the connection systems may also be utilized for pinned connections in a variety of other types of mining, dredging, forestry, and construction equipment. An insert utilized in the connections systems has a frustroconical shape that joins with an aperture in an element being joined by the connection system.
    Type: Grant
    Filed: June 20, 2013
    Date of Patent: August 25, 2015
    Assignee: ESCO Corporation
    Inventors: Robert McClanahan, Carolyn Shapiro, Robin K Churchill
  • Publication number: 20130280012
    Abstract: Improved connection systems for pinned connections are disclosed. Although the connection systems may be utilized in dragline excavating systems, the connection systems may also be utilized for pinned connections in a variety of other types of mining, dredging, forestry, and construction equipment. An insert utilized in the connections systems has a frustroconical shape that joins with an aperture in an element being joined by the connection system.
    Type: Application
    Filed: June 20, 2013
    Publication date: October 24, 2013
    Inventors: Robert McClanahan, Carolyn Shapiro, Robin K. Churchill
  • Patent number: 8469622
    Abstract: Improved connection systems for pinned connections are disclosed. Although the connection systems may be utilized in dragline excavating systems, the connection systems may also be utilized for pinned connections in a variety of other types of mining, dredging, forestry, and construction equipment. An insert utilized in the connections systems has a frustroconical shape that joins with an aperture in an element being joined by the connection system.
    Type: Grant
    Filed: November 18, 2008
    Date of Patent: June 25, 2013
    Assignee: ESCO Corporation
    Inventors: Robert McClanahan, Carolyn Shapiro, Robin K Churchill
  • Patent number: 8312650
    Abstract: In a wear assembly for securing wear members to excavating equipment, a spool is used with a wedge to hold the wear member in place. The spool is formed with at least one laterally extending arm at its upper end in lieu of an axial arm such as used in a conventional C-shaped spool. In this way, the spool can be easily supported in the assembly as the wedge is installed. The spool does not fall through the opening and no special care is needed to prevent it from falling. The spool also holds itself in place when the wedge is driven into the passage. As a result, installation of the wear assembly is easier and less hazardous. In addition, the lateral support reduces the risk that the spool will suffer spreading.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: November 20, 2012
    Assignee: ESCO Corporation
    Inventors: Robert McClanahan, Terry L. Briscoe
  • Publication number: 20120036743
    Abstract: In a wear assembly for securing wear members to excavating equipment, a spool is used with a wedge to hold the wear member in place. The spool is formed with at least one laterally extending arm at its upper end in lieu of an axial arm such as used in a conventional C-shaped spool. In this way, the spool can be easily supported in the assembly as the wedge is installed. The spool does not fall through the opening and no special care is needed to prevent it from falling. The spool also holds itself in place when the wedge is driven into the passage. As a result, installation of the wear assembly is easier and less hazardous. In addition, the lateral support reduces the risk that the spool will suffer spreading.
    Type: Application
    Filed: June 30, 2011
    Publication date: February 16, 2012
    Applicant: ESCO Corporation
    Inventors: Robert McClanahan, Terry L. Briscoe
  • Patent number: 8074383
    Abstract: A lock for securing a wear part to earth-working equipment that is foldable between a retaining position to hold the wear part to the equipment and a release position that permits removal of the lock and release of the wear part from the equipment. The lock includes a retainer for releasably holding the lock in the retaining position. The retainer may comprise a threaded wedge received into a complementary threaded passage.
    Type: Grant
    Filed: May 12, 2009
    Date of Patent: December 13, 2011
    Assignee: Esco Corporation
    Inventor: Robert McClanahan
  • Patent number: 8024874
    Abstract: A wear member that includes a pair of legs defining a slot straddles the digging edge of a piece of excavating equipment. In one construction, the slot is formed at its front end with a pair of inclined surfaces and a laterally extending ridge that is fit within a complementary channel on the digging edge. A lock is received within an opening in the wear member to releasably secure the wear member to the digging edge.
    Type: Grant
    Filed: August 28, 2006
    Date of Patent: September 27, 2011
    Assignee: ESCO Corporation
    Inventors: Robert McClanahan, Adam Stitzel
  • Patent number: 7997017
    Abstract: In a wear assembly for securing wear members to excavating equipment, a spool is used with a wedge to hold the wear member in place. The spool is formed with at least one laterally extending arm at its upper end in lieu of an axial arm such as used in a conventional C-shaped spool. In this way, the spool can be easily supported in the assembly as the wedge is installed. The spool does not fall through the opening and no special care is needed to prevent it from falling. The spool also holds itself in place when the wedge is driven into the passage. As a result, installation of the wear assembly is easier and less hazardous. In addition, the lateral support reduces the risk that the spool will suffer spreading.
    Type: Grant
    Filed: June 3, 2010
    Date of Patent: August 16, 2011
    Assignee: ESCO Corporation
    Inventors: Robert McClanahan, Terry L Briscoe
  • Publication number: 20100236109
    Abstract: In a wear assembly for securing wear members to excavating equipment, a spool is used with a wedge to hold the wear member in place. The spool is formed with at least one laterally extending arm at its upper end in lieu of an axial arm such as used in a conventional C-shaped spool. In this way, the spool can be easily supported in the assembly as the wedge is installed. The spool does not fall through the opening and no special care is needed to prevent it from falling. The spool also holds itself in place when the wedge is driven into the passage. As a result, installation of the wear assembly is easier and less hazardous. In addition, the lateral support reduces the risk that the spool will suffer spreading.
    Type: Application
    Filed: June 3, 2010
    Publication date: September 23, 2010
    Applicant: ESCO Corporation
    Inventors: Robert McClanahan, Terry L. Briscoe
  • Patent number: 7730652
    Abstract: In a wear assembly for securing wear members to excavating equipment, a spool is used with a wedge to hold the wear member in place. The spool is formed with at least one laterally extending arm at its upper end in lieu of an axial arm such as used in a conventional C-shaped spool. In this way, the spool can be easily supported in the assembly as the wedge is installed. The spool does not fall through the opening and no special care is needed to prevent it from falling. The spool also holds itself in place when the wedge is driven into the passage. As a result, installation of the wear assembly is easier and less hazardous. In addition, the lateral support reduces the risk that the spool will suffer spreading.
    Type: Grant
    Filed: December 4, 2006
    Date of Patent: June 8, 2010
    Assignee: ESCO Corporation
    Inventors: Robert McClanahan, Terry L. Briscoe
  • Publication number: 20090217556
    Abstract: A lock for securing a wear part to earth-working equipment that is foldable between a retaining position to hold the wear part to the equipment and a release position that permits removal of the lock and release of the wear part from the equipment. The lock includes a retainer for releasably holding the lock in the retaining position. The retainer may comprise a threaded wedge received into a complementary threaded passage.
    Type: Application
    Filed: May 12, 2009
    Publication date: September 3, 2009
    Applicant: ESCO Corporation
    Inventor: Robert McClanahan
  • Publication number: 20090136291
    Abstract: Improved connection systems for pinned connections are disclosed Although the connection systems may be utilized in dragline excavating systems, the connection systems may also be utilized for pinned connections in a variety of other types of mining, dredging, forestry, and construction equipment. An insert utilized in the connections systems has a frustroconical shape that joins with an aperture in an element being joined by the connection system.
    Type: Application
    Filed: November 18, 2008
    Publication date: May 28, 2009
    Applicant: ESCO Corporation
    Inventors: Robert McClanahan, Carolyn Shapiro, Robin K. Churchill
  • Patent number: 7536811
    Abstract: A lock for securing a wear part to earth-working equipment that is foldable between a retaining position to hold the wear part to the equipment and a release position that permits removal of the lock and release of the wear part from the equipment. The lock includes a retainer for releasably holding the lock in the retaining position. The retainer may comprise a threaded wedge received into a complementary threaded passage.
    Type: Grant
    Filed: June 13, 2007
    Date of Patent: May 26, 2009
    Assignee: ESCO Corporation
    Inventor: Robert McClanahan
  • Patent number: 7526886
    Abstract: A wear assembly for protecting the digging edge of a bucket which includes a wear member having a lock-receiving hole in one leg and an upstanding rib along the other leg. The rib extends axially along the leg to be received into a slot in a base fixed to the lip of the bucket. The rib has a rear end that engages the base to hold the rear end of the rib between the base and the lip. The wear member further includes an interior surface that has a front portion formed with a curve to wrap around the digging edge and a plurality of stabilizing surfaces. The lock has a latch and a threaded wedge received into the passage to move the latch to its holding position to maintain the lock in the assembly during use.
    Type: Grant
    Filed: October 23, 2007
    Date of Patent: May 5, 2009
    Assignee: Esco Corporation
    Inventors: Robert McClanahan, Phil Metschan, Carolyn Shapiro
  • Publication number: 20080092412
    Abstract: A wear assembly for protecting the digging edge of a bucket which includes a wear member having a lock-receiving hole in one leg and an upstanding rib along the other leg. The rib extends axially along the leg to be received into a slot in a base fixed to the lip of the bucket. The rib has a rear end that engages the base to hold the rear end of the rib between the base and the lip. The wear member further includes an interior surface that has a front portion formed with a curve to wrap around the digging edge and a plurality of stabilizing surfaces. The lock has a latch and a threaded wedge received into the passage to move the latch to its holding position to maintain the lock in the assembly during use.
    Type: Application
    Filed: October 23, 2007
    Publication date: April 24, 2008
    Applicant: ESCO Corporation
    Inventors: Robert McClanahan, Terry L. Briscoe, Rebecca A. Van Raden
  • Publication number: 20080092413
    Abstract: A wear assembly for protecting the digging edge of a bucket which includes a wear member having a lock-receiving hole in one leg and an upstanding rib along the other leg. The rib extends axially along the leg to be received into a slot in a base fixed to the lip of the bucket. The rib has a rear end that engages the base to hold the rear end of the rib between the base and the lip. The wear member further includes an interior surface that has a front portion formed with a curve to wrap around the digging edge and a plurality of stabilizing surfaces. The lock has a latch and a threaded wedge received into the passage to move the latch to its holding position to maintain the lock in the assembly during use.
    Type: Application
    Filed: October 23, 2007
    Publication date: April 24, 2008
    Applicant: ESCO Corporation
    Inventors: Robert McClanahan, Phil Metschan, Carolyn Shapiro
  • Publication number: 20070293074
    Abstract: A lock for securing a wear part to earth-working equipment that is foldable between a retaining position to hold the wear part to the equipment and a release position that permits removal of the lock and release of the wear part from the equipment. The lock includes a retainer for releasably holding the lock in the retaining position. The retainer may comprise a threaded wedge received into a complementary threaded passage.
    Type: Application
    Filed: June 13, 2007
    Publication date: December 20, 2007
    Applicant: ESCO Corporation
    Inventor: Robert McClanahan
  • Publication number: 20070194813
    Abstract: The present system provides a method for varying the value of passive components in electronic circuits. Passive components can range from basic resistors, capacitors, and inductors to complex, structures such as transmission lines and resonant cavities. Value selection and variation can either be dynamically performed during circuit operation or as a one-time part of the manufacturing process as determined by the requirements of the specific application. A digital-to-analog converter (DAC) circuit is used to input value selection data digitally, and control value selection with value resolution dependent on the resolution of the DAC. An alternate embodiment is provided for high frequency operation.
    Type: Application
    Filed: November 7, 2006
    Publication date: August 23, 2007
    Inventors: Robert Washburn, Robert McClanahan
  • Publication number: 20070183228
    Abstract: The present system is an electronic circuit designed for incorporation on high-speed computer memory modules such as DDR DIMMs. It couples control signals such as address bits, bank selects, enable and even clock signals between the module input connector and the memory devices. The circuit provides low propagation delay, fast rise and fall times with no overshoot or undershoot, and significantly improves timing control compared to memory modules of the present art. Capacitive loading on the motherboard is typically much less than that provided by a single memory device input and is independent of the number of memory devices per bank or the number of banks of memory devices on the memory module. For multiple memory modules connected to the memory bus, capacitive loading is essentially N times the equivalent loading for a single memory module.
    Type: Application
    Filed: October 26, 2006
    Publication date: August 9, 2007
    Inventors: Robert Washburn, Robert McClanahan
  • Publication number: 20070137071
    Abstract: In a wear assembly for securing wear members to excavating equipment, a spool is used with a wedge to hold the wear member in place. The spool is formed with at least one laterally extending arm at its upper end in lieu of an axial arm such as used in a conventional C-shaped spool. In this way, the spool can be easily supported in the assembly as the wedge is installed. The spool does not fall through the opening and no special care is needed to prevent it from falling. The spool also holds itself in place when the wedge is driven into the passage. As a result, installation of the wear assembly is easier and less hazardous. In addition, the lateral support reduces the risk that the spool will suffer spreading.
    Type: Application
    Filed: December 4, 2006
    Publication date: June 21, 2007
    Applicant: ESCO Corporation
    Inventors: Robert McClanahan, Terry L. Briscoe