Michael G Liedtke

US Patent:

6483061, Nov 19, 2002

Filed:

Sep 21, 2001

Appl. No.:

09/960539

Inventors:

Arthur James Harvey - Mantua OH
Michael Eric Liedtke - Massillon OH
Jay Dean Atkinson - Cambridge OH

Assignee:

Delta Systems, Inc. - Streetsboro OH

International Classification:

H01H 900

US Classification:

200532, 200 51 R, 200 5 R, 200 16 B, 200530, 200531

Abstract:

The present invention is directed to three pole plunger switch assembly. The assembly includes a three pole plunger switch and a mating connector. The plunger switch includes a switch housing for supporting components of the plunger switch and a plunger extending into an interior region of the switch housing and being actuatable from outside the switch housing wherein the plunger adapted to move between a normal position and an actuated position. The plunger switch further includes first, second and third electrically conductive wiper contacts mounted to the plunger for movement with the plunger and first, second and third sets of terminals extending into the switch housing interior region. Respective terminals of the first and second terminal sets are substantially aligned. The terminals of the third terminal set are perpendicular to the terminals of the first and second terminal sets.

US Patent:

6655975, Dec 2, 2003

Filed:

Dec 13, 2002

Appl. No.:

10/319095

Inventors:

Michael Eric Liedtke - Kent OH

Assignee:

Delta Systems, Inc. - Streetsboro OH

International Classification:

H01R 1352

US Classification:

439276, 439910, 439936, 439 761, 439 75

Abstract:

A sealed electrical assembly that includes a housing having an opening at an end. An electrical device is positioned in the housing. The electrical device includes a lead that extends out of the open end. A cover is positioned within the opening. The cover includes a plate portion and a tab portion spaced apart from the plate portion. The tab portion extends into a cutout in the housing that is located between the plate portion and the housing end to position the cover with respect to the housing. A sealant is disposed around a perimeter of the plate portion to provide a seal between the cover and the housing. A portion of the sealant is disposed in a space between the cutout and the plate portion to prevent leakage through the cutout.

US Patent:

6835090, Dec 28, 2004

Filed:

Aug 20, 2003

Appl. No.:

10/644438

Inventors:

Michael Eric Liedtke - Kent OH

Assignee:

Delta Systems, Inc. - Streetsboro OH

International Classification:

H01R 1352

US Classification:

439521, 439276, 439936

Abstract:

A sealed electrical assembly that includes a housing having an opening at an end. An electrical device is positioned in the housing. The electrical device includes a lead that extends out of the open end. A cover is positioned within the opening. The cover includes a plate portion and a tab portion spaced apart from the plate portion. The tab portion extends into a cutout in the housing that is located between the plate portion and the housing end to position the cover with respect to the housing. A sealant is disposed around a perimeter of the plate portion to provide a seal between the cover and the housing. A portion of the sealant is disposed in a space between the cutout and the plate portion to prevent leakage through the cutout.

US Patent:

7064639, Jun 20, 2006

Filed:

Jul 30, 2004

Appl. No.:

10/903201

Inventors:

Arthur James Harvey - Mantua OH, US
Michael Eric Liedtke - Kent OH, US
Ted Wetzel - Mayfield OH, US

Assignee:

Delta Systems, Inc. - Streetsboro OH

International Classification:

H01H 9/20

US Classification:

335167, 335165

Abstract:

A magnetic latching switch. The switch includes a pair of switch terminals, a switch actuator, an electromagnet and a biasing member. The switch actuator is manually moveable from a first position where the switch terminals are in a first state to a second position where the switch terminals are in a second state. The electromagnet selectively applies a magnetic field. Applying the magnetic field with the electromagnet when the switch actuator is in the second position maintains the switch actuator in the second position. The biasing member is coupled to the switch actuator such that the biasing member automatically returns the switch actuator from the second position to the first position when the magnetic field is removed.

US Patent:

7168519, Jan 30, 2007

Filed:

Apr 19, 2004

Appl. No.:

10/827591

Inventors:

Arthur James Harvey - Mantua OH, US
Michael Eric Liedtke - Kent OH, US

Assignee:

Delta Systems, Inc. - Streetsboro OH

International Classification:

B62D 1/24

US Classification:

180320, 180336

Abstract:

A switch mounting assembly that adapts a switch to detect a position of a vehicle control, such as the position of a drive control actuator of a lawn and garden tractor or similar vehicle. The switch mounting assembly includes a switch support member and a lever pivotally connected to the switch support member. The switch support member mounts a switch that includes an actuator that is biased to an extended position and a may be selectively depressed to a retracted position. The lever is pivotable between a first position that allows the actuator to be biased to the extended position and a second position that depresses the actuator to the retracted position.

US Patent:

58120521, Sep 22, 1998

Filed:

Oct 29, 1997

Appl. No.:

8/959752

Inventors:

Eric D. Swanger - Huntersville NC
Emmett C. Russell - Concord NC
Michael E. Liedtke - Massillon OH
Mark R. Albrecht - Stow OH

Assignee:

Specialty Manufacturing Company - Pineville NC

International Classification:

B60Q 126

US Classification:

340433

Abstract:

An actuating device for operating a safety unit mounted on a vehicle which includes a motor having an output shaft, a movable support for supporting the safety unit and moving it between its retracted and extended positions, and a non-mechanical switch arrangement that includes a pair of beam generators and sensors located in the path of the beams, and a plate for interrupting the beam and generating one control signal, and permitting passage of the beam to the sensor to generate another control signal. A control circuit is provided to operate the motor and movable support between its retracted and extended positions in response to the sensor's signals.

US Patent:

62079107, Mar 27, 2001

Filed:

Jul 6, 1999

Appl. No.:

9/347656

Inventors:

Arthur James Harvey - Mantua OH
Mark R. Albrecht - Stow OH
Jan L. Michaud - Cuyahoga Falls OH
Michael Eric Liedtke - Massillon OH

Assignee:

Delta Systems, Inc. - Streetsboro OH

International Classification:

H01R13/703
7
H01H13/52

US Classification:

200 5112

Abstract:

A low profile, two pole, plunger-type safety switch and connector assembly includes a switch housing and switch components are supported within the housing interior region. An actuator extends exteriorly though the housing opening and is moveable along a linear path of travel between two positions, one position of the actuator corresponding to an undepressed position and a second position of the actuator corresponding to a depressed position. Terminals of the switch assembly terminate in conductive male contacts extending through a side wall of the switch housing substantially perpendicular to the path of travel of the actuator. The connector assembly includes a connector housing supporting four female terminals sized to snugly receive respective different ones of the four male contacts when the connector housing engages the switch housing. Extending arms of a flexible, electrically conductive shorting member contact a center two of the female terminals. When the connector is engaged with the switch housing a pair of beveled triangular shaped nubs extending from the switch housing contacts the shorting member arms and deflects them away from contact with the female terminals.

US Patent:

20220366754, Nov 17, 2022

Filed:

Aug 1, 2022

Appl. No.:

17/816582

Inventors:

- Twinsburg OH, US
Michael Eric Liedtke - Kent OH, US

Assignee:

Fasteners for Retail, Inc. - Twinsburg OH

International Classification:

G07F 5/26
F16D 11/16
F16H 21/44

Abstract:

A product-dispensing device comprises an actuator, a locking gear, and a button which are all supported by a housing. The actuator for rotation about the first axis. The locking gear for the rotation between a first position and a second position about a second axis, the locking gear also includes a locking arm to inhibit rotation of the actuator in the second direction about the first axis when the locking arm is in the second position. The button is operably coupled to the locking gear and configured to rotate the locking gear between the first position and the second position.