DENNIS P MCGUIRE
Engineers in Erie, PA

6092795, Jul 25, 2000

Aug 4, 1997

8/905185

Dennis P. McGuire - Erie PA

Lord Corporation - Cary NC

F16F 910

26714011

A fluid damper to damp unwanted vibration between a first member (21) and a second member (23, 23'), such as between a rotor blade and hub within a helicopter rotor system. According to a first aspect, the fluid damper (20) includes an outer member (22), first and second inner members (24, 24'), first and second elastomeric elements (26, 26'), a hollow (28), a divider (30) subdividing hollow (28) into first (32) and second (32') operating chambers, a connector (34) interconnecting first (24) and second (24') inner members, a fluid passageway (36) interconnecting operating chambers (32, 32'), a fluid (38) contained within said passageway (36) and operating chambers (32, 32'), and a volume compensator (40) including a compensator chamber (42) housed within one of first (24) and second (24') inner members. In another aspect, an annular bubble trap (58) is formed in a wall portion (62) of the operating chamber (32) to focus any air bubbles into a fill port (54) during fill. In another aspect, a first chamber fill port (54) and a second chamber fill port (54') each interconnect with the annular bubble trap (58) to aid in filling the chamber (32') and removing air bubbles therefrom.

8240641, Aug 14, 2012

Nov 28, 2006

11/564017

Dennis McGuire - Erie PA, US

Lord Corporation - Cary NC

F16F 9/10

267 33, 267 34

A support strut includes a strut isolator with a first strut end member and a second strut end member, the second strut end distal from the first strut end. The first strut end member includes an outer rigid housing with an inner cavity. The second strut end member includes an inner rigid member extending into the outer rigid housing inner cavity and includes an inertial track extending in a direction from the first strut end towards the second strut end. The inertial track has a first entrance end proximate the first strut end and a second entrance end proximate the second strut end. The isolator includes a first outer tubular elastomer disposed between the outer rigid housing and the inner rigid member. The isolator includes a second inner end tubular elastomer disposed between the outer rigid housing and the inner rigid member proximate the second strut end. The isolator includes a third inner end tubular elastomer, the third inner end tubular elastomer disposed between the outer rigid housing and the inner rigid member proximate the first strut end.

4182138, Jan 8, 1980

Mar 4, 1977

5/774578

Dennis P. McGuire - Erie PA

Lord Corporation - Erie PA

F16D 317, F16F 1504, G05G 100

64 11R

A rotary energy storage device comprises a rotor and a hub for mounting the rotor on a shaft. The rotor is joined to the hub by an interlayer disposed between the rotor and hub. One surface of the interlayer is bonded to a mounting surface of the hub. A second surface of the interlayer, which is opposite the first surface, is bonded to a surface of the rotor which is opposite and spaced from the mounting surface of the hub. Due to differences in their constructions, such as their relative dimensions, the rotor and the hub experience different strains due to the centrifugal forces exerted during rotation of the energy storage device. The difference between the strain at the mounting surface of the hub and the strain at the opposed surface of the rotor induces a shear stress in the interlayer. To accommodate the induced shear stress, the interlayer has a thickness and a shear modulus which permit the interlayer to deflect in response to the difference in strains without structural or bond failure. The interlayer can be effective to accommodate the induced shear stress at any speed of the energy storage device up to the speed at which the rotor would fail due to centrifugal loads imposed upon it.

5127607, Jul 7, 1992

Jul 9, 1991

7/727185

Dennis P. McGuire - Erie PA

Lord Corporation - Erie PA

B64D 2700

244 54

A torque-restraint mounting system for connecting an aircraft engine to a structure including at least two hydraulic mountings and at least one other resilient mounting. At least two of the hydraulic mountings are fluidicly interconnected via a fluid filled conduit. This allows for the torque to be reacted between the aircraft engine and the structure by placing the fluid in compression. The relative torque-induced displacement occurring between the aircraft engine and the structure for any specific operating copndition is counteracted by tuning the amount or volume of fluid within the torque-restraint system, or by tuning the coefficient of thermal expansion of the fluid. Thus, as the torque-restraint mounting system heats up, the aircraft engine will change rotational position such that its room temperature untorqued orientation can be maintained. This can have significant benefits in terms of increasing service life of the engine mounting system.

5540549, Jul 30, 1996

Aug 5, 1994

8/286847

Dennis P. McGuire - Erie PA

Lord Corporation - Cary NC

B64C 1104

416140

The invention relates to a fluid device for providing high load carrying capacity in an one direction and which provides a high level of damping along a substantially perpendicular direction. This is achieved by a device which includes an inner member and an outer member and a flexible section causing a connection therebetween, said flexible section exhibiting a substantially higher stiffness along one axis, a fluid cavity formed within said device, a piston attached to one of said inner member and said outer member, said piston being substantially surrounded by, and submersed in said fluid. In one embodiment, the piston includes a piston area A. sub. p which is substantially greater than 1/2 the fluid cavity area A. sub. c. Movement of the piston within the fluid cavity causes a damping force comprising a throttling component as well as a viscous shear component. Means are disclosed for substantially increasing the viscous shear component and throttling component including novel piston concepts.

6293532, Sep 25, 2001

Aug 4, 1997

8/905190

Dennis P. McGuire - Erie PA

Lord Corporation - Cary NC

B64C 1104

26714013

A fluid isolator apparatus (20) for isolating vibration between a vibrating member, such as a helicopter transmission or pylon and another structure, such as a helicopter fuselage. In one aspect, the fluid and elastomer apparatus (20) includes an inner member (24), an outer member (22), and an elastomer element (26) flexibly interconnecting them. First (30) and second (34) operating chambers are interconnected by a passageway (36). Fluid (37) oscillates between the operating chambers (32, 34) through passageway (36). A spring (42) flexibly suspends the piston (40) such that dynamic motion between said inner and outer member (24, 22) displaces piston (40) and spring (42). Preferably the a hollow cavity (28) houses both the piston (40) and a metal coil spring (42). The stiffness of the coil spring (42) may be interchanged to adjust a resonant parameter. Optionally, the piston mass itself or an additional tuning mass (58) mounted on the piston (40) may be used to accomplish tuning.

5762295, Jun 9, 1998

Feb 23, 1996

8/606130

Dennis P. McGuire - Erie PA
Gerald P. Whiteford - Waterford PA
Paul T. Herbst - Erie PA
Henry T. Wu - Lisle IL

Lord Corporation - Cary NC

B64D 2700

244 54

A method is described for identifying the primary load path of a particular engine. An elastomeric mount may then be made laterally soft in a first (in the disclosed case, the tangential) direction and more rigid in the direction of the primary load path. Efforts can then be directed to dynamically softening the mount in the primary load path. Specific apparatus may include passive fluid devices, active fluid devices, passive non-fluid devices and active non-fluid devices. In the case of a fluid mount, another feature of the invention is to have an auxiliary fill port of the volume compensator in alignment with at least one and, preferably both, of the primary fill port for the mount and the inertia track to facilitate filling.