Swing-type actuator

Details Swing-type actuator Swing-type actuator

1993-04-29

1995-10-17

Dougherty, Thomas M.

Electrical generator or motor structure

Dynamoelectric

Linear

360105, 360106, H02K 4102, G11B 554

Patent

active

054593590

ABSTRACT:
A swing-type actuator having: (a) an upper yoke made of a ferromagnetic material, (b) a permanent magnet assembly constituted by a lower yoke made of a ferromagnetic material and opposing the upper yoke and a flat permanent magnet attached to the lower yoke; (c) a base member made of a thermoplastic resin and having a hold portion projecting from an upper surface of the base member for defining a space into which the permanent magnet assembly is received and support portions projecting from an upper surface of the base member for fixing the upper yoke such that there is a magnetic gap between the permanent magnet assembly and the upper yoke, the base member being integrally molded together with the permanent magnet assembly such that the permanent magnet assembly is fixed to the base member inside the hold portion; and (d) a swingable arm having one end adapted to receive a movable coil and the other end to which a function member is fixable, the movable coil being swingable in the magnetic gap.

REFERENCES:
patent: Re32075 (1986-01-01), Harrison et al.
patent: 4150407 (1979-04-01), Dijkstra
patent: 4196456 (1980-04-01), Manzke et al.
patent: 4396959 (1983-08-01), Harrison et al.
patent: 4490635 (1984-12-01), Harrison et al.
patent: 4516177 (1985-05-01), Moon et al.
patent: 4544973 (1985-10-01), Van De Bult
patent: 4553058 (1985-11-01), Iwasaki
patent: 4639624 (1987-01-01), Ejiri et al.
patent: 4639798 (1987-01-01), Harrison et al.
patent: 4639863 (1987-01-01), Harrison et al.
patent: 4669004 (1987-05-01), Moon et al.
patent: 4772974 (1988-09-01), Moon et al.
patent: 4849840 (1989-07-01), Fujioka
patent: 4855853 (1989-08-01), Matsushita et al.
patent: 4879617 (1989-11-01), Sampietro et al.
patent: 4949194 (1990-08-01), MacPherson et al.
patent: 4951023 (1990-08-01), Erd et al.
patent: 4985652 (1991-01-01), Oudet et al.
patent: 5005089 (1991-04-01), Thanos et al.
patent: 5027241 (1991-06-01), Hatch et al.
patent: 5034837 (1991-07-01), Schmitz
patent: 5119254 (1992-06-01), Brown et al.
patent: 5122703 (1992-06-01), Takahashi et al.
patent: 5140210 (1992-08-01), Shirakawa
patent: 5148071 (1992-09-01), Takahashi
patent: 5165090 (1992-11-01), Takahashi et al.
patent: 5168184 (1992-12-01), Umehara et al.
patent: 5168185 (1992-12-01), Umehara et al.
patent: 5225725 (1993-07-01), Shiraki et al.
patent: 5305169 (1994-04-01), Anderson et al.
English Abstract of Japanese Patent Laid-Open No. 55-67975, dated May 22, 1980.
English Abstract of Japanese Patent Laid-Open No. 56-19561, dated Feb. 2, 1981.
English Abstract of Japanese Patent Laid-Open No. 58-57721, dated Apr. 6, 1983.
English Abstract of Japanese Patent Laid-Open No. 59-124066, dated Jul. 18, 1984.
English Abstract of Japanese Patent Laid-Open No. 63-142574, dated Jun. 14, 1988.
English Abstract of Japanese Patent Laid-Open No. 1-89946, dated Apr. 5, 1989.
English Abstract of Japanese Patent Laid-Open No. 2-310865, dated Dec. 26, 1990.

Affiliated with

Also associated with

Rating

Swing-type actuator does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Swing-type actuator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Swing-type actuator will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-599664