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).
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Patent number: 9115742Abstract: 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: GrantFiled: June 20, 2013Date of Patent: August 25, 2015Assignee: ESCO CorporationInventors: Robert McClanahan, Carolyn Shapiro, Robin K Churchill
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Publication number: 20130280012Abstract: 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: ApplicationFiled: June 20, 2013Publication date: October 24, 2013Inventors: Robert McClanahan, Carolyn Shapiro, Robin K. Churchill
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Patent number: 8469622Abstract: 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: GrantFiled: November 18, 2008Date of Patent: June 25, 2013Assignee: ESCO CorporationInventors: Robert McClanahan, Carolyn Shapiro, Robin K Churchill
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Patent number: 8312650Abstract: 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: GrantFiled: June 30, 2011Date of Patent: November 20, 2012Assignee: ESCO CorporationInventors: Robert McClanahan, Terry L. Briscoe
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Publication number: 20120036743Abstract: 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: ApplicationFiled: June 30, 2011Publication date: February 16, 2012Applicant: ESCO CorporationInventors: Robert McClanahan, Terry L. Briscoe
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Patent number: 8074383Abstract: 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: GrantFiled: May 12, 2009Date of Patent: December 13, 2011Assignee: Esco CorporationInventor: Robert McClanahan
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Patent number: 8024874Abstract: 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: GrantFiled: August 28, 2006Date of Patent: September 27, 2011Assignee: ESCO CorporationInventors: Robert McClanahan, Adam Stitzel
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Patent number: 7997017Abstract: 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: GrantFiled: June 3, 2010Date of Patent: August 16, 2011Assignee: ESCO CorporationInventors: Robert McClanahan, Terry L Briscoe
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Publication number: 20100236109Abstract: 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: ApplicationFiled: June 3, 2010Publication date: September 23, 2010Applicant: ESCO CorporationInventors: Robert McClanahan, Terry L. Briscoe
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Patent number: 7730652Abstract: 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: GrantFiled: December 4, 2006Date of Patent: June 8, 2010Assignee: ESCO CorporationInventors: Robert McClanahan, Terry L. Briscoe
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Publication number: 20090217556Abstract: 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: ApplicationFiled: May 12, 2009Publication date: September 3, 2009Applicant: ESCO CorporationInventor: Robert McClanahan
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Publication number: 20090136291Abstract: 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: ApplicationFiled: November 18, 2008Publication date: May 28, 2009Applicant: ESCO CorporationInventors: Robert McClanahan, Carolyn Shapiro, Robin K. Churchill
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Patent number: 7536811Abstract: 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: GrantFiled: June 13, 2007Date of Patent: May 26, 2009Assignee: ESCO CorporationInventor: Robert McClanahan
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Patent number: 7526886Abstract: 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: GrantFiled: October 23, 2007Date of Patent: May 5, 2009Assignee: Esco CorporationInventors: Robert McClanahan, Phil Metschan, Carolyn Shapiro
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Publication number: 20080092413Abstract: 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: ApplicationFiled: October 23, 2007Publication date: April 24, 2008Applicant: ESCO CorporationInventors: Robert McClanahan, Phil Metschan, Carolyn Shapiro
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Publication number: 20080092412Abstract: 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: ApplicationFiled: October 23, 2007Publication date: April 24, 2008Applicant: ESCO CorporationInventors: Robert McClanahan, Terry L. Briscoe, Rebecca A. Van Raden
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Publication number: 20070293074Abstract: 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: ApplicationFiled: June 13, 2007Publication date: December 20, 2007Applicant: ESCO CorporationInventor: Robert McClanahan
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Publication number: 20070194813Abstract: 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: ApplicationFiled: November 7, 2006Publication date: August 23, 2007Inventors: Robert Washburn, Robert McClanahan
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Publication number: 20070183228Abstract: 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: ApplicationFiled: October 26, 2006Publication date: August 9, 2007Inventors: Robert Washburn, Robert McClanahan
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Publication number: 20070137071Abstract: 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: ApplicationFiled: December 4, 2006Publication date: June 21, 2007Applicant: ESCO CorporationInventors: Robert McClanahan, Terry L. Briscoe