Linear valve actuator

Details Linear valve actuator Linear valve actuator

2005-08-23

2005-08-23

Keasel, Eric (Department: 3754)

Valves and valve actuation

Electrically actuated valve

Rotary electric actuator

C251S292000

Reexamination Certificate

active

06932319

ABSTRACT:
In a preferred embodiment, a linear actuator including: a rotary electric motor; a shaft (46) extending into a rotor (44) of the rotary electric motor and extendable into a body extension (30) of the valve; the shaft (46) having an externally threaded portion (36) extending into the rotor (44) and in engagement with a complimentary threaded internal surface of the rotor (44); and the shaft (46) having an externally splined portion (34) extendable into the body extension (30) of the valve and engageable with a complementary splined internal surface (110) of the extension (30) of the valve.

REFERENCES:
patent: 4948091 (1990-08-01), Satoh et al.
patent: 5364066 (1994-11-01), Dorste et al.
patent: 5769390 (1998-06-01), Ando
patent: 5848610 (1998-12-01), Livernash et al.
patent: 6217452 (2001-04-01), Marioni
patent: 6254058 (2001-07-01), Keller
patent: WO 02/101274 (2002-12-01), None

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