Alfred L. Ehrenfels

Person

Cheshire, CT, US

People

Patents Grantslast 30 patents

Information Patent Grant
Method of making universal electrical connector
- Patent number 5,758,414
- Issue date Jun 2, 1998
- Hubbell Incorporated
- Alfred L. Ehrenfels
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Universal electrical connector for receiving DC and AC electrical c...
- Patent number 5,584,715
- Issue date Dec 17, 1996
- Hubbell Incorporated
- Alfred L. Ehrenfels
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Closure plug for electrical enclosure
- Patent number 5,434,360
- Issue date Jul 18, 1995
- Hubbell Incorporated
- Alfred L. Ehrenfels
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Electrical cable and connector assembly with safety pilot line disc...
- Patent number 5,346,406
- Issue date Sep 13, 1994
- Hubbell Incorporated
- Ernest G. Hoffman
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Dead front electrical connector for recharging electric vehicles
- Patent number D349276
- Issue date Aug 2, 1994
- Hubbell Incorporated
- Ernest G. Hoffman
- D13 - Equipment for production, distribution, or transformation of energy
Information Patent Grant
Locking electrical connector
- Patent number 5,273,445
- Issue date Dec 28, 1993
- Hubbell Incorporated
- Alfred L. Ehrenfels
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Housing for switched electrical receptacle or the like
- Patent number 5,239,129
- Issue date Aug 24, 1993
- Hubbell Incorporated
- Alfred L. Ehrenfels
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Flush mounted receptacle and plug with pin and sleeve type contacts
- Patent number 5,035,646
- Issue date Jul 30, 1991
- Hubbell Incorporated
- Alfred L. Ehrenfels
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Connector shunt structure
- Patent number 4,790,765
- Issue date Dec 13, 1988
- Hubbell Incorporated
- Alfred L. Ehrenfels
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Latch and retainer mechanism for electrical connector
- Patent number 4,740,176
- Issue date Apr 26, 1988
- Hubbell Incorporated
- Michael R. Marks
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Electrical connector with component keying system
- Patent number 4,736,999
- Issue date Apr 12, 1988
- Hubbell Incorporated
- Michael R. Marks
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Overhead wiring system
- Patent number 4,686,381
- Issue date Aug 11, 1987
- Hubbell Incorporated
- William C. Boteler
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Shielded connector
- Patent number 4,674,807
- Issue date Jun 23, 1987
- Harvey Hubbell Incorporated
- William C. Boteler
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Detenting lift cover
- Patent number 4,381,879
- Issue date May 3, 1983
- Harvey Hubbell Incorporated
- Alfred L. Ehrenfels
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Floating seal for weatherproof housing
- Patent number 4,361,252
- Issue date Nov 30, 1982
- Harvey Hubbell Incorporated
- Richard I. Black
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Non-rigid mechanical coupling for a fire-rated feed-through fitting...
- Patent number 4,243,835
- Issue date Jan 6, 1981
- Harvey Hubbell, Incorporated
- Alfred L. Ehrenfels
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Alfred L. Ehrenfels

Person

Patents Grantslast 30 patents

Method of making universal electrical connector

Universal electrical connector for receiving DC and AC electrical c...

Closure plug for electrical enclosure

Electrical cable and connector assembly with safety pilot line disc...

Dead front electrical connector for recharging electric vehicles

Locking electrical connector

Housing for switched electrical receptacle or the like

Flush mounted receptacle and plug with pin and sleeve type contacts

Connector shunt structure

Latch and retainer mechanism for electrical connector

Electrical connector with component keying system

Overhead wiring system

Shielded connector

Detenting lift cover

Floating seal for weatherproof housing

Non-rigid mechanical coupling for a fire-rated feed-through fitting...