Hoffman Enclosures Inc.

Federal-hoffman, Inc.

Clifford A Klinger

John Emil Richard

Joseph D Ricke

William Joseph Nepsha

Craig E Schinzel

David B Wightman

Steven J Hammond

Wallace H Polzin

Marvin J Thibodeau

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.

Compound hinge

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.

Mechanical latch system

Growing community of inventors

Minneapolis, MN, United States of America

Clifford A Klinger