Patents Represented by Attorney Edwards F. Murphy, III
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Patent number: 6776518Abstract: A container for storing and transporting field controllable fluid is disclosed. The field controllable material may be mixed and remixed in the container and the field controllable material may be flowed into or discharged from the container chamber without opening the container.Type: GrantFiled: February 12, 2002Date of Patent: August 17, 2004Assignee: Lord CorporationInventors: Scott D. Gartland, Donald A. Nixon, Gary W. Adams, K. Andrew Kintz, Eric T. Byrd
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Patent number: 6758466Abstract: A fluid-elastomeric damper assembly operable for damping relative motion between a first structure and a second structure including a housing structure grounded to the first structure and a plurality of elastomer seals coupled to the housing structure, the housing structure and the plurality of elastomer seals defining a fluid-elastomeric chamber operable for containing a fluid. The fluid-elastomeric damper assembly also including one or more piston structures disposed within the housing structure and the fluid-elastomeric chamber, the one or more piston structures grounded to the first structure and driven by the second structure, and the one or more piston structures each including a first substantially fluid-filled chamber and a second substantially-fluid-filled chamber in communication via an orifice, the first substantially fluid-filled chamber and the second substantially fluid-filled chamber also in communication with the fluid-elastomeric chamber.Type: GrantFiled: November 6, 2002Date of Patent: July 6, 2004Assignee: Lord CorporationInventor: Donald D. Russell
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Patent number: 6755404Abstract: An elastomeric bushing assembly including a substantially cylindrical elastomeric bushing segment having a recessed channel manufactured into a portion of an outer surface thereof and a rigid member disposed within the recessed channel manufactured into the portion of the outer surface of the substantially cylindrical elastomeric bushing segment. The substantially cylindrical elastomeric bushing segment is configured such that it may be disposed within a first structure comprising an inner surface having edges defining a gap and the substantially cylindrical elastomeric bushing segment is configured such that it may receive a second structure comprising an outer surface. The substantially cylindrical elastomeric bushing segment is configured such that it may be disposed within the first structure comprising the inner surface having edges defining the gap such that the rigid member is substantially aligned and in direct contact with the edges defining the gap.Type: GrantFiled: January 6, 2003Date of Patent: June 29, 2004Assignee: Lord CorporationInventors: Scott R. Lefferts, Chris E. Casbohm
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Patent number: 6752389Abstract: A mount comprising a unitary resilient member where the unitary resilient member comprises a spring portion, an intermediate stiffening portion and a damping layer, and the resilient member is compressible and extendible. The resilient member is substantially enclosed by a casing. The mount further includes damping means located in contact with said damping layer, the damping means providing damping in response to compression and extension of said resilient member.Type: GrantFiled: October 30, 2001Date of Patent: June 22, 2004Assignee: Lord CorporationInventors: James R. Halladay, Wallace C. Flower, Roger Cook
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Patent number: 6722480Abstract: A magnetically actuated motion control device includes a housing defining a cavity and including a slot therethrough. A movable member is located within the cavity and is movable relative to the housing. A magnetic field generator located on either the housing or the movable member causes the housing to press against the movable member to develop a friction force. The flux caused by the magnetic field flows through the housing, the movable member and at least one pole located along the movable member. The at least one pole comprises a first portion having a first axial dimension and a second portion having a second axial dimension where the first axial dimension is greater than the second axial dimension and as a result the magnetic flux through the second portion of the at least one pole has a greater magnitude than the magnetic flux through the first portion of the pole.Type: GrantFiled: May 7, 2002Date of Patent: April 20, 2004Assignee: Lord CorporationInventor: J. David Carlson
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Patent number: 6715746Abstract: A vibration isolation device is disclosed. More specifically the vibration isolation device of the present invention comprises a fuse for decreasing the mount stiffness when loads above a threshold load value are applied to the device. The fuse for decreasing the mount stiffness comprises a shear pin with shear locations that comprise annular grooves with semielliptical cross sections.Type: GrantFiled: July 20, 2001Date of Patent: April 6, 2004Assignee: Lord CorporationInventors: Paul J. Bachmeyer, Michael R. Blewett, Marvin D. Ohme
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Patent number: 6695102Abstract: A single fluid valve device operable for setting an overall viscous damping level, magnetic damping strength, and low speed damping profile. A stationary, controllable magnetorheological fluid valve device comprising a first annular body having gap setting features and controllable passageways formed within the fluid valve device, and a second body disposed adjacent to the first annular body, wherein the second body comprises a magnetic field generating means contained therein. A twin-tube damping device comprising an outer member containing an outer volume of magnetorheological fluid, an inner member containing an inner volume of magnetorheological fluid, a stationary, controllable fluid valve device disposed within the outer member, a piston rod mounted for movement with respect to the inner and outer members, a piston assembly attached to the piston rod and a pressurized volumetric compliance means.Type: GrantFiled: December 31, 2002Date of Patent: February 24, 2004Assignee: Lord CorporationInventors: Robert H. Marjoram, Michael J. Chrzan
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Patent number: 6695294Abstract: A controlled equilibrium device comprising a housing; at least one spring, each at least one spring having a spring stiffness; and a load leveling device movable through the housing between a first maximum displacement position and a second maximum displacement position, the load leveling device comprising a deadband displacement zone defined between a first deadband displacement threshold and a second deadband displacement threshold, the displacement required to reach the first and second deadband displacement thresholds being less than the displacement distances required to reach the first and second maximum displacement positions, the at least one spring stiffness being substantially constant when the displacement of the load leveling device is within the deadband zone, the stiffness of the at least one spring being modified to a second stiffness when the load leveling device is equal to or beyond either the first deadband displacement threshold or the second deadband displacement threshold.Type: GrantFiled: July 20, 2001Date of Patent: February 24, 2004Assignee: Lord CorporationInventors: Lane R. Miller, Douglas A. Swanson, Russell E. Alteri, Douglas E. Ivers, Stephen F. Hildebrand, William S. Jensen, Scott K. Miller, Michael D. Janowski, Michael F. Walch
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Patent number: 6688689Abstract: A seat suspension system includes a first seat (e.g., a base) member and a second seat (e.g., a seat) member preferably overlying the first seat member. At least one spring (e.g., elastic or rubber) mount is interposed between the first and second seat member. The at least one elastic mount provides a projected elastic center spaced from (preferably located above) the second seat member such that the second seat member is pivotable about the projected elastic center. Embodiments describing seat suspension systems having a single focalized mount or a plurality of spaced apart, focalized mounts are included.Type: GrantFiled: June 24, 1999Date of Patent: February 10, 2004Assignee: Lord CorporationInventor: Richard P. Thorn
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Patent number: 6672575Abstract: A surface effect damper comprising a housing having a wall that defines a chamber, the housing having a first end, a second end and an axis; at least one contact element movable through the chamber between the housing ends in a first direction and in a second direction; and at least two damping elements substantially surrounding each contact element, each of the at least two damping elements being movable away from the axis and into frictional engagement with the wall as the at least one contact element is moved in a first direction and each of the at least two damping elements being movable toward the axis as the at least one contact element is moved in a second direction.Type: GrantFiled: June 12, 2001Date of Patent: January 6, 2004Assignee: Lord CorporationInventors: Wallace C. Flower, Douglas A. Hodgson, Peter A. Masterson, Paul J. Bachmeyer
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Patent number: 6669298Abstract: A damper (20) for damping motion between two relatively moveable members, such as pivotal motion between components in office chairs (10). The damper (20) includes a outer member (22) having an internal recess (23) with a inner surface (24) and a crosswise oriented hole (30) intersecting the recess (23), and an inner member assembly (32) moveable relative to the outer member (22) having a shaft (34) with a resilient friction member (38) mounted thereon. The resilient friction member (38) frictionally engages the inner surface (24) in an interference fit relationship thereby radially precompressing the resilient friction member (38). The resilient friction member (38) preferably has one or more protrusions (40) that may be axially or radially oriented.Type: GrantFiled: March 11, 2002Date of Patent: December 30, 2003Assignee: Lord CorporationInventors: Richard P. Thorn, Samson Beyene
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Patent number: 6667679Abstract: A temporary joint that includes a first discrete member having a first edge and a first movable coupling means; and a second discrete member having a second edge and a second movable coupling means. When it is necessary to form a joint between the first and second discrete members, the first and second edges are moved into abutment to define a binding edge. Then, the first and second movable coupling means are moved toward the binding edge; and the temporary joint is formed when the first and second movable coupling means are proximate the binding edge. The joint is broken by moving the first and second coupling means away from the binding edge. The first coupling means is comprised of a volume of a field responsive material and the second coupling means is a field producing means such as a magnet. A rigid joint is produced when the field producing supplies a field across the field responsive material.Type: GrantFiled: April 20, 2001Date of Patent: December 23, 2003Assignee: Lord CorporationInventors: J. David Carlson, Lynn C. Yanyo
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Patent number: 6659438Abstract: A mount with a first attachment member; a second attachment member spaced from the first attachment member; and resilient members joining the first and second attachment members, each of the resilient members having at least one void, the voids being collapsible under loading between a first open void condition where the mount has a first substantially constant stiffness, and a second collapsed condition where the voids are substantially closed, the mount having a second substantially constant stiffness when the voids are in the second collapsed condition.Type: GrantFiled: March 4, 2002Date of Patent: December 9, 2003Assignee: Lord CorporationInventors: Robert J. Michael, Peter D. Howorth, Atle Larsen, Troy P. Herbst, Ulrich A. Kuester
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Patent number: 6650108Abstract: A system and method for monitoring the composition of a magnetically permeable material, where the system comprises a first container containing a volume of magnetically permeable material; a flow path for flowing the magnetically permeable material out of the container; a sensor for determining the inductance of the magnetically permeable material; and a sensor for determining the density of the magnetically permeable material. The sensors for determining the density and inductance of the magnetically permeable material are flow connected to the flow path.Type: GrantFiled: May 11, 2001Date of Patent: November 18, 2003Assignee: Lord CorporationInventors: J. David Carlson, Gary W. Adams
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Patent number: 6640940Abstract: A system that includes a magnetically actuated motion control device comprising a housing defining a cavity and including a slot therethrough. A movable member is located within the cavity and is movable relative to the housing. A magnetic field generator located on either the housing or the movable member causes the housing to press against the movable member to develop a friction force.Type: GrantFiled: February 20, 2002Date of Patent: November 4, 2003Assignee: Lord CorporationInventor: J. David Carlson
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Patent number: 6611185Abstract: A joint member for selectively joining first and second members, said joint member comprising a first coupling member comprising a volume of field responsive material and a second coupling member comprising a field generating member for selectively applying a field across the field responsive material, the joint member also comprising means for selectively moving the field responsive material toward and away from the field generating means.Type: GrantFiled: June 15, 2001Date of Patent: August 26, 2003Assignee: Lord CorporationInventors: J. David Carlson, Mitzi R. Vernon, Lynn C. Yanyo
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Patent number: 6609406Abstract: A tool for reorienting a flange is disclosed. The tool reorients the flange from a first angle of orientation to a second angle of orientation and comprises a support member that further comprises a guide member; and a shoe maintained in a desired orientation by the support member. The shoe defines a reorienting surface, and the reorienting surface further comprising: a leading reorienting surface for progressively reorienting the flange to an intermediate angle of orientation between the first and second angles of orientation, and a trailing reorienting surface, the trailing reorienting surface being located proximate the guide member to define a reorienting gap therebetween, said reorienting gap adapted to permit passage of the flange therethrough, said flange being reoriented to the second angle as it exits the reorienting gap.Type: GrantFiled: July 23, 2002Date of Patent: August 26, 2003Assignee: Lord CorporationInventor: Edward T. Staquet
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Patent number: 6601818Abstract: A tilting mount for controlling the angular tilting or rocking displacement of a support member. The tilting mount comprises an outer elastomeric member and an inner sleeve with an annular flange. An end of the support member is inserted in a bore that extends through the sleeve. The mount is adapted to be seated in a base, and a cup substantially overlays the mount. As the support member is tilted and displaced from its vertical position, diagonally disposed portions of the mount member are compressed between the flange and both the cup and base in order to facilitate and control the angular displacement of the support member. The elastomeric member provides snubbing that limits the angular displacement of the support member.Type: GrantFiled: October 12, 2000Date of Patent: August 5, 2003Assignee: Lord CorporationInventor: Atle Larsen
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Patent number: 6581874Abstract: A system for supporting an auxiliary power unit in an aircraft tailcone wherein the auxiliary power unit is supported by a focalized suspension system supporting the power unit, the focalized suspension system having a plurality of support means each having a line of action, the lines of action intersecting at the focal point. The support system simplifies removal and installation of the auxiliary power unit from and into the aircraft's tailcone.Type: GrantFiled: September 27, 2001Date of Patent: June 24, 2003Assignee: Lord CorporationInventors: Jacques Lemire, Kirk W. Olsen, Francis J. DePriest, Thomas R. Law, Gerald P. Whiteford, Paul J. Bachmeyer
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Patent number: 6376010Abstract: The present invention is directed to a silica forming feedstock and a method of making optical waveguides and optical waveguide preforms. The feedstock for use in the manufacturing of germanium doped silica glass products includes a siloxane and a germanium dopant component such as germanium alkoxide. The invention further relates to the manufacturing of optical waveguides and optical waveguide preforms using a fluid feedstock which includes a siloxane and germanium dopant component, preferably germanium alkoxide.Type: GrantFiled: June 16, 1998Date of Patent: April 23, 2002Assignee: Corning IncorporatedInventors: Jeffery Lynn Blackwell, Lisa Anne Moore, Carlton Maurice Truesdale