KEITH W KLEIN
Engineering in Simsbury, CT

License number
Massachusetts 15401
Expiration Date
Jun 30, 1990
Type
Mechanical Engineer
Address
Address
Simsbury, CT 06070

Professional information

See more information about KEITH W KLEIN at trustoria.com
Keith Klein Photo 1
Molded Case Circuit Breaker Actuator-Accessory Unit Reset Mechanism

Molded Case Circuit Breaker Actuator-Accessory Unit Reset Mechanism

US Patent:
4913503, Apr 3, 1990
Filed:
Oct 7, 1988
Appl. No.:
7/254754
Inventors:
Roger N. Castonguay - Terryville CT
Joseph G. Nagy - Plainville CT
Richard E. Bernier - Southington CT
Ronald D. Ciarcia - Bristol CT
Keith W. Klein - Simsbury CT
Assignee:
General Electric Company - New York NY
International Classification:
H01H 900
US Classification:
335172
Abstract:
An integrated protection unit is a circuit breaker which includes basic overcurrent protection facility along with selective electrical accessories. A molded plastic accessory access cover secured to the integrated protection unit cover protects the accessory components contained within the integrated protection unit cover from the environment. A combined overcurrent trip actuator and multiple accessory unit can be field-installed within the integrated protection unit. The combined actuator-accessory unit includes electronic control circuitry for the accessories along with mechanical trip and reset interface components. The reset mechanism allows the actuator-accessory unit to become reset without interferring with the operation of the integrated protection unit.


Keith Klein Photo 2
Apparatus And System For Protecting Power Distribution Circuits Against Ground Faults

Apparatus And System For Protecting Power Distribution Circuits Against Ground Faults

US Patent:
4233639, Nov 11, 1980
Filed:
Mar 26, 1979
Appl. No.:
6/024228
Inventors:
Keith W. Klein - Simsbury CT
Joseph M. Palmieri - Southington CT
Gregory C. Eckart - Southington CT
Assignee:
General Electric Company - New York NY
International Classification:
H02H 3347
US Classification:
361 44
Abstract:
A ground fault circuit interrupting (GFCI) device is utilized to control either an industrial circuit breaker or a contactor in protecting a large power distribution circuit against ground faults. The GFCI device is equipped with switch contacts which are actuated incident with tripping of the GFCI device. The switch contacts control energization of an actuator adapted to the circuit breaker or contactor. A ground fault sensor responds to ground faults on the distribution circuit by injecting a current imbalancing signal into the GFCI device, causing it to trip. The consequent switch contact actuation initiates operation of the circuit breaker or contactor to interrupt the distribution circuit.


Keith Klein Photo 3
Molded Case Circuit Breaker Actuator-Accessory Unit

Molded Case Circuit Breaker Actuator-Accessory Unit

US Patent:
4894631, Jan 16, 1990
Filed:
Sep 6, 1988
Appl. No.:
7/240885
Inventors:
Roger N. Castonguay - Terryville CT
Joseph G. Nagy - Plainville CT
Richard E. Bernier - Southington CT
Ronald D. Ciarcia - Bristol CT
Keith W. Klein - Simsbury CT
Assignee:
General Electric Company - New York NY
International Classification:
H01H 920
US Classification:
335167
Abstract:
An integrated protection unit is a circuit breaker which includes basic overcurrent protection facility along with selective electrical accessories. A molded plastic accessory access cover secured to the integrated protection unit cover protects the accessory components contained within the integrated protection unit cover from the environment. A combined overcurrent trip actuator and multiple accessory unit can be field-installed within the integrated protection unit. The combined actuator-accessory unit includes electronic control circuitry for the accessories along with mechanical trip and reset interface components.


Keith Klein Photo 4
Circuit Breaker Auxiliary Switch Apparatus

Circuit Breaker Auxiliary Switch Apparatus

US Patent:
4209761, Jun 24, 1980
Filed:
Sep 7, 1978
Appl. No.:
5/940417
Inventors:
Keith W. Klein - Simsbury CT
Joseph M. Palmieri - Southington CT
Assignee:
General Electric Company - New York NY
International Classification:
H01H 7312, H01H 7500, H01H 7300
US Classification:
335 17
Abstract:
Actuating elements, operatively coupled with an external circuit breaker manual operating handle and with a circuit breaker internal trip actuating member, are selectively operated to activate an auxiliary switch when the circuit breaker is opened either manually via its operating handle or automatically in response to an abnormal external circuit condition.


Keith Klein Photo 5
Ground Fault Protection System For Industrial Power Circuits

Ground Fault Protection System For Industrial Power Circuits

US Patent:
4156884, May 29, 1979
Filed:
Nov 7, 1977
Appl. No.:
5/849065
Inventors:
Gregory C. Eckart - Southington CT
Keith W. Klein - Simsbury CT
Assignee:
General Electric Company - New York NY
International Classification:
H02H 328
US Classification:
361 46
Abstract:
A ground fault circuit interrupting (GFCI) device of the type utilized in low voltage, residential type circuits for personnel protection against ground faults is connected in circuit with a high voltage, high current source so as to trip in response to ground fault current returning to the source via a conductor path solidly connecting the source to ground.


Keith Klein Photo 6
Molded Case Circuit Breaker Movable Contact Arm Arrangement

Molded Case Circuit Breaker Movable Contact Arm Arrangement

US Patent:
4931603, Jun 5, 1990
Filed:
Mar 23, 1989
Appl. No.:
7/327655
Inventors:
Roger N. Castonguay - Terryville CT
Keith W. Klein - Simsbury CT
David Arnold - Chester CT
Preston L. Ellis - New Holland PA
Assignee:
General Electric Company - New York NY
International Classification:
H01H 3302
US Classification:
200144R
Abstract:
A molded case circuit breaker movable contact arm electrically connects with the circuit breaker load terminal without requiring a flexible electrical conducting braid. The contact arm is pivotally arranged within a contact arm support to which the load terminal lug is attached. The contact arm pivot pin is supported on a pair of parallel support posts extending from the contact arm support and a pair of bifurcated shunt plates are positioned on the pivot pin, one on each side of the contact arm to promote good electric transport between the contact arm and the support posts during short circuit conditions without interfering with the rotational movement of the contact arm.


Keith Klein Photo 7
Molded Breaker Case Housing Molded Case Circuit Breaker

Molded Breaker Case Housing Molded Case Circuit Breaker

US Patent:
4156121, May 22, 1979
Filed:
Jun 2, 1977
Appl. No.:
5/802620
Inventors:
Keith W. Klein - Simsbury CT
Morris J. Kornblit - Newington CT
Joseph M. Palmieri - Southington CT
Assignee:
General Electric Company - New York NY
International Classification:
H01H 158, H01H 902
US Classification:
200293
Abstract:
A molded circuit breaker case complete with line and load terminals is fashioned to house a molded case circuit breaker. Rigid conductive straps affixed to the outer case provide electrical connections between the case line and load terminals and the circuit breaker line and load terminals, respectively, and, in addition, serve to secure the circuit breaker in place. The circuit breaker operating handle protrudes through an opening in the outer case to facilitate manual circuit breaker operation.


Keith Klein Photo 8
Ground Fault Circuit Breaker With Trip Indication

Ground Fault Circuit Breaker With Trip Indication

US Patent:
4037185, Jul 19, 1977
Filed:
Mar 11, 1976
Appl. No.:
5/665904
Inventors:
Keith W. Klein - Simsbury CT
Assignee:
General Electric Company - New York NY
International Classification:
H01H 8302
US Classification:
335 18
Abstract:
A ground fault circuit interrupting (GFCI) device includes a conventional circuit breaker equipped with a trip mechanism operable automatically to open the breaker contacts in response to overcurrent conditions. A GFCI module, responsive to ground leakage current, actuates a trip solenoid to open the breaker contacts via the trip mechanism in response to a ground fault. An indicator, carried by linkage interconnecting the solenoid and trip mechanism, is moved into registry with an opening in the breaker case only upon actuation of the solenoid to thus indicate the occurrence of a ground fault trip function.


Keith Klein Photo 9
Self-Cleating Rope Holder

Self-Cleating Rope Holder

US Patent:
4178661, Dec 18, 1979
Filed:
Jun 1, 1978
Appl. No.:
5/911374
Inventors:
Keith W. Klein - Simsbury CT
International Classification:
F16G 1100
US Classification:
24130
Abstract:
A rope holder includes a body having anchoring means facilitating attachment to a member. The free end of a rope leading from an object to be tied down, is threaded through a first aperture and then a second aperture, both formed in the body. Also formed in body is a V-shaped notch having its wide end in open communication with the second aperture. The rope is pulled tight through the two apertures and then moved laterally out of the second aperture into the slot, where it is wedged to maintain the desired rope tightness.


Keith Klein Photo 10
Insulated Latch-Cradle Mechanism

Insulated Latch-Cradle Mechanism

US Patent:
4481491, Nov 6, 1984
Filed:
Jan 6, 1983
Appl. No.:
6/456136
Inventors:
Eldon B. Heft - West Hartford CT
Keith W. Klein - Simsbury CT
Assignee:
General Electric Company - New York NY
International Classification:
H01H 7302
US Classification:
335 21
Abstract:
An electric circuit breaker includes an insulated latch and cradle mechanism to prevent deleterious arc formation between their points of separation when the circuit breaker contacts are opened under short circuit conditions. One embodiment employs an insulated latch mounted on the breaker armature.