U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Damped magnetic head suspension assembly

Patent 4819094 Issued on April 4, 1989. Estimated Expiration Date: Icon_subject December 8, 2007. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

Transducer suspension mount apparatus
Patent #: 3931641
Issued on: 01/06/1976
Inventor: Watrous

Transducer suspension mount apparatus
Patent #: 4167765
Issued on: 09/11/1979
Inventor: Watrous

Damper for constant load arm
Patent #: 4208684
Issued on: 06/17/1980
Inventor: Janssen ,   et al.

Transducer head vibration dampening
Patent #: 4216505
Issued on: 08/05/1980
Inventor: Grant ,   et al.

Suspension for flying magnetic head
Patent #: 4286297
Issued on: 08/25/1981
Inventor: Root ,   et al.

Suspension assembly for magnetic head
Patent #: 4399476
Issued on: 08/16/1983
Inventor: King

Method of making thin film magnetic recording heads
Patent #: 4489484
Issued on: 12/25/1984
Inventor: Lee

Head holding mechanism of magnetic disk device
Patent #: 4625249
Issued on: 11/25/1986
Inventor: Iwata

Solderless connection technique between data/servo flex circuits and magnetic disc heads
Patent #: 4645280
Issued on: 02/24/1987
Inventor: Gordon ,   et al.

Transducer head assembly Patent #: 4647998
Issued on: 03/03/1987
Inventor: Onohara ,   et al.

Inventor

Application

No. 07/129848 filed on 12/08/1987

US Classes:

360/245.9, Flexible printed circuit type360/137, MISCELLANEOUS360/97.02Environmental control (e.g., air filter, temperature control)

Examiners

Primary: Wolff, John H.
Assistant: Bussan, Matthew J.

Attorney, Agent or Firm

International Classes

G11B 5/48 (20060101)
H05K 3/00 (20060101)
G11B 5/58 (20060101)
G11B 5/54 (20060101)
H05K 3/28 (20060101)
H05K 3/38 (20060101)

Abstract

Magnetic head suspension assemblies are improved by adhesively bonding a flexible circuit to a suspension. Damping is provided as well as a reduction in height.

Other References

  • Watrous, "Low-Load Beam Suspension for Magnetic Heads", IBM Technical Disclosure Bulletin, vol. 18, No. 11, Apr. 1976, pp. 3813-3814
  • Rynders et al., "Damped Slider Mount", IBM Technical Disclosure Bulletin, vol. 11, No. 3, Aug. 1968, p. 248
  • Norwood, "Damped Head Arm", IBM Technical Disclosure Bulletin, vol. 21, No. 8, Jan. 1979, p. 3093
  • Church et al., "Method for Wiring a Magnetic Head", IBM Technical Disclosure Bulletin, vol. 23, No. 8, Jan. 1981, pp. 3873-3874
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