JAMES T GWINN
Engineers in Fairview, PA

6129177, Oct 10, 2000

Oct 23, 1998

9/178003

James T. Gwinn - Fairview PA

Lord Corporation - Cary NC

F16F 700

181207

A tuned vibration absorber and vibration-reduced pipeline system utilizing same. The tuned vibration absorber includes a support frame, a tuning mass mounted for pivotal movement relative to the support frame about a pivot; the tuning mass including a lever, and a spring contacting the lever. In the vibration-reduced pipeline system, the absorber's support frame is preferably secured atop of the pipeline section, preferably by at least one strap, to absorb vibrations thereof. In a preferred aspect, the tuning mass includes an arm extending from the pivot in a first direction and a weight repositionably mounted thereon. The lever extends from the arm along a second direction substantially orthogonal to the first direction. Preferably the line of action (along A--A) of the spring extends substantially parallel to the first direction. An adjuster is provided for readjusting a position of the tuning mass relative to said support frame due to drift in the spring.

7156571, Jan 2, 2007

Jan 13, 2005

11/037582

Josephine A. Mook - Erie PA, US
James Gwinn - Fairview PA, US

B43K 27/00

401 29, 401 31, 401195, 401 18

A combination pen, pencil and circular marking implement that can be utilized as a pen or pencil writing tool and for circular ink marking on printed surfaces for word game and puzzle solution includes a central passageway for accommodating ink cartridges or lead pencil cartridges encompassed by an ink reservoir that communicates with a cylindrical marking die for circling numbers and letters, and the marking die capable of advancement or retraction by rotation of a tool gripping collar attached to the body of the combination writing and marking implement whereupon rotation of the tool gripping collar engages internal cams for actuating the advancement and retraction of the marking die so that either the pen/pencil writing function or the circular ink marking function can be selected for use.

5394589, Mar 7, 1995

Feb 11, 1993

8/016375

Denise M. Braeger - Erie PA
James T. Gwinn - Fairview PA
Richard P. Thorn - Erie PA
Richard S. Gureghian - Burlington MA

Lord Corporation - Erie PA

B60B 3300

16 44

Three embodiments of a shock-isolating caster. A surface-effect damper engages at least one of a wheel element and an intermediate structural member to dampen vibration and shock loads which would otherwise be transmitted from the wheel element through the intermediate structure and mounting member to the equipment supporting cart. A first embodiment positions the damper between an outer wheel rim and an inner wheel hub. Second and third embodiments mount the wheel on a pivotable arm and dampen the movement of the arm. Capability to adjust damping levels is provided.

6148734, Nov 21, 2000

May 19, 1998

9/080984

James T. Gwinn - Fairview PA

Lord Corporation - Cary NC

B61F 300

1051993

A railway car side bearing includes a lower housing member, an upper housing member spaced apart from the lower housing member, and an elastomeric spring member interposed between the upper and lower housing members that buckles upon application of vertical loading to provide a spring rate that softens within a range of compressive loads. The upper and lower housing members cooperate with each other to allow for relative vertical movement therebetween, but restrain lateral and rotational movement therebetween. The elastomeric spring member has a first set of spring rates when subjected to axial loads within a first range. However, when the side bearing is subjected to axial loads within an second range, the elastomeric spring member buckles and exhibits a second set of substantially softer spring rates.

6234905, May 22, 2001

May 8, 1998

9/074915

James T. Gwinn - Fairview PA
George M. Klapsinos - Erie PA

Lord Corporation - Cary NC

F16D 352

464 75

An elastomer coupling (20) including an outer member (40) including a leading contact face (38), and an elastomer component (30) including a driving elastomer contact face (41) opposing and adapted for operable unbonded contact with said leading contact face (38), the driving elastomer contact face (41) including a thin polyurethane coating (50). In another aspect, the elastomer coupling (20) has an elastomer member (30) preferably having a plurality of parallel-sided bonded lugs (47) having thin elastomer driving and following skins (46, 46') received in preferable line fit relationship in a plurality of parallel-sided recesses (44) formed in a preferably plastic outer member (40) for transmitting torques, accommodating slight parallel and angular misaligninents, and isolating vibrations thereof.

6224047, May 1, 2001

Aug 28, 1998

9/141905

James T. Gwinn - Fairview PA

Lord Corporation - Cary NC

B60G 1114

267292

An elastomeric bearing. The bearing which may be used to support a railway car body includes first and second members and an elastomeric member interposed in a cavity defined between the first and second members. The second member has a recess formed therein which communicates with the cavity. The elastomeric member includes a working section positioned in the cavity and a non-working section integral with the working section and disposed in the recess. The non-working section serves as a sprue location site during the molding process to avoid locating surface defects associated with the sprue in the working section.