John L Richard

US Patent:

6408506, Jun 25, 2002

Filed:

Feb 28, 2001

Appl. No.:

09/795597

Inventors:

John Emil Richard - Rogers MN
William Joseph Nepsha - Blaine MN
Timothy Lloyd Mullen - Hudson WI
Thomas R. Hurney - Anoka MN
Paul Rutherford, Jr. - Straubenhardt, DE

Assignee:

Hoffman Enclosures, Inc. - Anoka MN

International Classification:

H01R 4300

US Classification:

29825, 29829, 29840, 29841

Abstract:

An electrical enclosure having an improved sealing and shielding component and a method of manufacturing such an enclosure is provided. In accordance with an embodiment of the invention, a wire mesh is positioned against the surface of the enclosure. While the wire mesh is being positioned against the enclosure surface, a foam is formed on the enclosure surface adjacent the wire mesh. The foam generally adheres to the enclosure surface and holds the wire mesh in place. In accordance with one aspect of the invention, the foam has a height equal to or greater than the height of the wire mesh. The improved sealing and shielding components can, for example, improve the sealing and shielding of the electrical enclosure as compared to conventional electrical enclosures. The present electrical enclosure may, for example, also reduce the cost of manufacturing electrical enclosures.

US Patent:

6564428, May 20, 2003

Filed:

Jan 12, 2001

Appl. No.:

09/759650

Inventors:

John E. Richard - Rogers MN
Craig E. Schinzel - Ramsey MN
Wallace H. Polzin - Ramsey MN
Clifford A. Klinger - Minneapolis MN
William J. Nepsha - Blaine MN
Marvin J. Thibodeau - Elk River MN

Assignee:

Hoffman Enclosures, Inc. - Anoka MN

International Classification:

E05D 306

US Classification:

16366, 16375, 16374, 16335, 16342, 16371

Abstract:

A compound hinge system includes a first link and a second link. The first link includes knuckles and arcing engaging surfaces next to stop portions that are configured for receiving engaging lug portions on a second link member. A second link member includes first and second sets of knuckles. One of the sets of knuckles cooperates with a hinged pin to pivot relative to the first link while the second set of knuckles receives a hinge pin to pivot relative to the second element. The lugs slide relative to the engaging surface and push against the stop portions to flex them outward and require additional force to move between various stops in the range of motion.

US Patent:

7071409, Jul 4, 2006

Filed:

Jan 31, 2003

Appl. No.:

10/356724

Inventors:

John Emil Richard - Rogers MN, US
William Joseph Nepsha - Blaine MN, US
Timothy Lloyd Mullen - Hudson WI, US
Thomas R. Hurney - Anoka MN, US
Paul Rutherford, Jr. - Straubenhardt, DE
Tom Erickson - Plymouth MN, US
Chuck Lavigne - Cedar MN, US
Thomas E. Anderson - Coon Rapids MN, US

Assignee:

Hoffman Enclosures, Inc. - Anoka MN

International Classification:

H02G 3/08

US Classification:

174 35GC, 174 35 MS, 174 35 R, 295921, 361424, 361724, 277227

Abstract:

An electrical enclosure having an improved sealing and shielding component and a method of manufacturing such an enclosure is provided. In accordance with an embodiment of the invention, a wire mesh is positioned against the surface of the enclosure. While the wire mesh is being positioned against the enclosure surface, a foam is formed on the enclosure surface adjacent the wire mesh. The foam generally adheres to the enclosure surface and holds the wire mesh in place. In accordance with one aspect of the invention, the foam has a height equal to or greater than the height of the wire mesh. The improved sealing and shielding components can, for example, improve the sealing and shielding of the electrical enclosure as compared to conventional electrical enclosures. The present electrical enclosure may, for example, also reduce the cost of manufacturing electrical enclosures.

US Patent:

54818893, Jan 9, 1996

Filed:

Jan 15, 1993

Appl. No.:

8/005013

Inventors:

John E. Richard - Rogers MN
David B. Wightman - White Bear Lake MN
Clifford A. Klinger - Minneapolis MN
Steven J. Hammond - Andover MN
Joseph D. Ricke - Arden Hills MN

Assignee:

Federal-Hoffman, Inc. - Anoka MN

International Classification:

E05B 6314

US Classification:

70118

Abstract:

A latching apparatus includes a rack and pinion drive. A latch bar slide between a latched and unlatched position with ramped latching members mounted on the bar engaging complementary latching members. The latch connects to several types of latch actuators including a button actuator having rotation indicating means. The latch is also configured to connect to a keyed latch actuator and a push-button actuator.

US Patent:

61880140, Feb 13, 2001

Filed:

Mar 6, 1998

Appl. No.:

9/036150

Inventors:

John Emil Richard - Rogers MN
William Joseph Nepsha - Blaine MN
Timothy Lloyd Mullen - Hudson WI
Thomas R. Hurney - Anoka MN
Paul Rutherford - Straubenhardt, DE

Assignee:

Hoffman Enclosures, Inc. - Anoka MN

International Classification:

H05K 900

US Classification:

174 35R

Abstract:

An electrical enclosure having an improved sealing and shielding component and a method of manufacturing such an enclosure is provided. In accordance with an embodiment of the invention, a wire mesh is positioned against the surface of the enclosure. While the wire mesh is being positioned against the enclosure surface, a foam is formed on the enclosure surface adjacent the wire mesh. The foam generally adheres to the enclosure surface and holds the wire mesh in place. In accordance with one aspect of the invention, the foam has a height equal to or greater than the height of the wire mesh. The improved sealing and shielding components can, for example, improve the sealing and shielding of the electrical enclosure as compared to conventional electrical enclosures. The present electrical enclosure may, for example, also reduce the cost of manufacturing electrical enclosures.

US Patent:

47904488, Dec 13, 1988

Filed:

Sep 8, 1987

Appl. No.:

7/093980

Inventors:

James V. Ostrum - St. Paul MN
Gary C. Springer - Maple Grove MN
Kenneth G. Weller - Minneapolis MN
John E. Richard - Rockford MN
Robert E. Montrose - Plymouth MN

Assignee:

Liberty Diversified Industries - New Hope MN

International Classification:

B65D 1734

US Classification:

220270

Abstract:

A container and lid assembly including a container having a cylindrical side wall and top rim, and a lid having an inverted U-shaped rim and depending skirt portion which is snapped over the rim of the container wall to form a sealing closure therewith. An annular ridge projects inwardly from the inner surface of the skirt portion so as to ride over and engage under the upper bead of the container wall, thereby creating single point interference fits between the container and lid. The outer edge of a first shoulder engages a score line on the inner surface of the skirt portion defining a bi-directional tear strip. The distal end of the tear strip closely confronts a second shoulder when the container is originally sealed. The inside wall of the lid prevents the container from being deformed or collapsing when opened.