James C Erickson

US Patent:

6500633, Dec 31, 2002

Filed:

Apr 26, 2000

Appl. No.:

09/558880

Inventors:

Timothy R. Compton - Irvine CA
Jeff A. Parrott - Irvine CA
James R. Erickson - El Cerrito CA
Robert L. Wolfert - Tustin CA

Assignee:

Atairgin Technologies, Inc. - Irvine CA

International Classification:

C12Q 132

US Classification:

435 26, 436813

Abstract:

The present invention relates to methods of detecting carcinomas by measuring the level of a glycero compound, such as glycerol-3-phosphate, in a plasma, serum, or urine specimen from a patient. The method is particularly useful as a screening test for ovarian and breast carcinomas.

US Patent:

8366492, Feb 5, 2013

Filed:

Dec 21, 2010

Appl. No.:

12/974669

Inventors:

John W. Erickson - Crystal Lake IL, US
James A. Erickson - Crystal Lake IL, US
John Walter Erickson - Crystal Lake IL, US

Assignee:

Boltswitch, Inc. - Crystal Lake IL

International Classification:

H01R 9/22

US Classification:

439709, 200 5109, 200237, 361823

Abstract:

A terminal reversing block mounts to a standard electrical disconnect device such as a circuit breaker or a pullout switch. The disconnect device has a housing which defines a cavity that faces in one direction for receiving a cable. Front and rear contacts are in the housing, one of which extends into the cavity for engagement with a cable. A terminal reversing block has a housing with at least one pocket which faces in a direction other than the opposite of the direction in which the disconnect device's cavity faces. A terminal collar disposed in the terminal reversing block pocket is engageable with a cable inserted into the pocket. A terminal in the reversing block has a mating portion and a connecting portion. The connecting portion engages the terminal collar. The mating portion engages one of the front and rear contacts of the electrical disconnect device.

US Patent:

40204324, Apr 26, 1977

Filed:

Aug 25, 1975

Appl. No.:

5/607352

Inventors:

John W. Erickson - Crystal Lake IL
James A. Erickson - Crystal Lake IL

Assignee:

Boltswitch, Inc. - Crystal Lake IL

International Classification:

H01H 326
H01H 328

US Classification:

335 76

Abstract:

A motor assembly for the switch operator mechanism of a high-current low-voltage bolted-pressure load-break switch; the switch operator mechanism includes spring drive means for rapidly driving the movable contact of the switch to its closed and opened positions, a main drive shaft, a drive linkage between the main drive shaft and the spring drive means, and trip means for actuating the spring drive means to open the switch. The motor assembly includes an electric motor, an operating shaft and a first transmission means including a mutilated ratchet element drivingly connecting the motor to the operating shaft. A second transmission means couples the operating shaft to the main drive shaft of the switch-operating mechanism for closing the switch. An electrical circuit is provided for automatically de-energizing the motor during switch closure.

US Patent:

41105842, Aug 29, 1978

Filed:

Feb 14, 1977

Appl. No.:

5/768167

Inventors:

John W. Erickson - Crystal Lake IL
James A. Erickson - Crystal Lake IL

Assignee:

Boltswitch, Inc. - Crystal Lake IL

International Classification:

H01H 902
H01H 1304
H01H 1904
H01H 2104

US Classification:

200304

Abstract:

A high current, low voltage, load-break switch of the type which is installed in a housing having an access door. The switch comprises a fixed contact, a movable contact which is movable between a closed position in bolted pressure contact with the fixed contact and an open position which is displaced from the fixed contact. A mechanism is provided for rapidly opening and closing the switch by driving the movable contact to its closed position and also to its open position. A transparent shield is supported across the front of the switch contacts to visually expose the switch contacts when the access door to the housing is open while providing protection in the event of electrical arcing and mechanical failure of the switch contacts.

US Patent:

41773683, Dec 4, 1979

Filed:

Jul 17, 1978

Appl. No.:

5/924943

Inventors:

James A. Erickson - Crystal Lake IL

Assignee:

Boltswitch, Inc. - Crystal Lake IL

International Classification:

H01H 302

US Classification:

200332

Abstract:

A high-current, low-voltage load-break switch of the type having a plurality of fixed contacts and a plurality of movable contacts. Each of the movable contacts moves between a closed position in bolted pressure contact with one of the fixed contacts and a open position which is displaced from its fixed contact. An actuating bar connects the movable contacts for movement of the contacts in unison. A switch-operator mechanism is provided for rapidly closing the switch by driving the movable contacts to their closed positions and also to their open positions. An electrically non-conductive operating rod assembly is provided for connecting the actuating bar and the switch-operator mechanism. This rod assembly includes an elongated metal rod having threads at its opposite ends. One end of the rod is threaded to a first metal yoke which is pivotally connected to one end of an insulator link.

US Patent:

41374339, Jan 30, 1979

Filed:

Jun 10, 1977

Appl. No.:

5/805597

Inventors:

James A. Erickson - Crystal Lake IL
John W. Erickson - Crystal Lake IL

Assignee:

Boltswitch, Inc. - Crystal Lake IL

International Classification:

H01H 920
H01H 300

US Classification:

200 50A

Abstract:

An operating mechanism for opening and closing the movable contacts of a load break pressure contact switch which is operable from a side of a switch enclosure and has an optional door safety interlock. The operating mechanism comprises a main shaft with a handle attached thereto for rotating the shaft in opposite directions between switch-open and switch-closed positions. An operating lever which is connected to the movable switch contacts is driven by an overcenter toggle spring means which is operated by the main shaft through a lost motion connection mechanism. An optional interlock is provided for the switch enclosure access door and includes a latch to hold the access door closed when the switch contacts are in their closed position and a mechanism to prevent movement of the switch contacts to their closed position when the access door is open. The interlock is operatively actuatable through cam surfaces and stop surfaces on the lost motion connection mechanism. An override for the door latch allows the access door to be opened while the switch contacts remain closed.

US Patent:

52444236, Sep 14, 1993

Filed:

Apr 29, 1992

Appl. No.:

7/875291

Inventors:

John W. Erickson - Crystal Lake IL
James A. Erickson - Crystal Lake IL

Assignee:

Boltswitch, Inc. - Crystal Lake IL

International Classification:

H01R 1109

US Classification:

439798

Abstract:

A turn prevention electrical connection assembly to prevent cable or other conductor connection lugs from turning on an electrical bus includes a turn prevention member, usually of cross-like configuration and having at least as many arms as there are connection lugs on one side of the bus. The turn prevention member is mounted on the bus in nested alignment with the connection lugs so that each connection lug is aligned closely adjacent to at least one arm of the turn prevention member. The turn prevention member and the connection lugs interact with each other to preclude turning of the lugs from their preset alignment.

US Patent:

52722910, Dec 21, 1993

Filed:

Dec 30, 1991

Appl. No.:

7/816032

Inventors:

James A. Erickson - Crystal Lake IL

Assignee:

Boltswitch, Inc. - Crystal Lake IL

International Classification:

H01H 344
H01H 900

US Classification:

200 18

Abstract:

A dual switch actuator for coordinated actuation of two high-current switches, each having a switch operator with a shaft. The switch operator shafts are aligned paraxially with a main shaft of the actuator. A Geneva drive plate having an arcuate bearing surface and two drive pins is affixed to the main shaft. A modified Geneva follower plate is affixed to each of the switch operator shafts. Each follower plate has a drive slot for receiving a drive pin and a bearing surface complementary to the drive plate bearing surface. In a neutral position of the main shaft, each drive pin is positioned at a follower plate drive slot entrance and both follower plates bearing surfaces engage the main drive plate bearing surface. Rotation of the main shaft in either direction from neutral causes one guide pin to move inwardly of the follower plate drive slot, rotating the follower plate and its associated switch operator shaft to actuate one switch without actuation of the other. A detent prevents rotation of the main shaft in either direction from neutral to engage one of the follower plates and rotate it and its associated switch operator shaft to move its switch contacts to a closed position when the other of the follower plates is in a position of rotation slightly short of its fully open position, a position which could occur if the switch contacts associated with the switch of the other follower plate were welded in a partially closed, actuated condition.