Eric T Risch

Author:

Eric A. Risch

ISBN #:

0849371791

US Patent:

20020067273, Jun 6, 2002

Filed:

Sep 11, 2001

Appl. No.:

09/952011

Inventors:

Marvin Jaques - Lincoln NE, US
Eric Risch - Omaha NE, US
Jesse Preuss - Lincoln NE, US

Assignee:

Senior Technologies, Inc. - Lincoln NE

International Classification:

G08B023/00

US Classification:

340/573400, 340/573100

Abstract:

To monitor a patient, a pressure sensor is placed under the patient. The pressure pad includes a normally open switch having first and second contacts. Pressure on the pad over a preset amount arms the switch and release of the pressure causes an alarm and/or a message to be announced. The closing of the first and second contacts requires bending one of the first and second contacts over a spacing means, wherein the spacing means includes at least one spacing member that is at least one-eighth inch in height between the first and second contacts. In this manner, the contacts are held apart until the resilient spacing member is forced shut. The pressure pad is low cost and can be disposable.

US Patent:

20110304222, Dec 15, 2011

Filed:

Jun 9, 2011

Appl. No.:

13/157014

Inventors:

Dan Pickerill - Milford NE, US
Eric Risch - Omaha NE, US

Assignee:

Lindsay Corporation - Omaha NE

International Classification:

H02B 1/24

US Classification:

307112

Abstract:

An electric circuit for remotely starting and controlling the direction of a center pivot irrigation system comprises a first transformer, a second transformer, a first relay, a second relay, a third relay, and a fourth relay. The first transformer is coupled to a voltage source with a first voltage and may step the first voltage down to a second voltage. The second transformer is coupled to the first transformer, receiving a third voltage and stepping the third voltage up to a fourth voltage. The first relay may include contacts that are open when the irrigation system is started remotely. The second relay may include contacts that are closed when the irrigation system is started remotely. The third relay may include contacts that are closed momentarily to drive the system in a first direction. The fourth relay may include contacts that are closed momentarily to drive the system in a second direction.