US3786457A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disk recorder arm assembly mount
Assignee: Memorex Corp
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Filing: 1972-10-24
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Granted: 1974-01-15
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Expires: 1992-10-24
Abstract
Abstract A rigid mount for a leaf spring loaded arm assembly cantilevered from the mount, the mount has a central contact point against which a leaf spring is loaded to localize the contact interface between the mount and leaf spring and prevent undesirable resonances from developing in the arm assembly caused in part by the otherwise shifting interface between a flat mounting surface and an anticlastically curved leaf spring surface developed on bending the leaf spring when the arm assembly is loaded onto a rotating recording disk.
Inventors
- 👤 M Kahn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:12
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/48; G11B5/58; G11B5/60
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
123 words
An improved mount connecting a leaf spring type arm assembly to an accessing mechanism in a disk drive machine for restricting the resonance of vibrations in the arm assembly wherein the improvement comprises the combination of a rigid mount member connectable to an accessing mechanism and a flat leaf spring fixed to a cantilevered member in an arm assembly which supports a recording transducer, wherein, said mount member has a substantially flat face against which a portion of said leaf spring is secured and an end edge from which said leaf spring is cantilevered, said end edge having a localized contact point between said leaf spring and said mount which contacts said leaf spring substantially on the centroidal axis of the arm assembly.
Claim 2
Dependent Claim
123 words
An improved mount connecting a leaf spring type arm assembly to an accessing mechanism in a disk drive machine for restricting the resonance of vibrations in the arm assembly wherein the improvement comprises the combination of a rigid mount member connectable to an accessing mechanism and a flat leaf spring fixed to a cantilevered member in an arm assembly which supports a recording transducer, wherein, said mount member has a substantially flat face against which a portion of said leaf spring is secured and an end edge from which said leaf spring is cantilevered, said end edge having a localized contact point between said leaf spring and said mount which contacts said leaf spring substantially on the centroidal axis of the arm assembly.
Claim 3
Dependent Claim
106 words
The improved mount of claim 1 wherein the arm assembly is of a cam-ramp loading type having a ramp on one edge of the cantilevered member which is engageable with a stationary cam for displacing the arm assembly and wherein said mount member has further a second localized contact point (elevated from the remaining edge between said leaf spring and said mount) and is so constructed and arranged that the edge of the leaf spring on the side of the arm assembly on which the ramp is arranged contacts said contact point when said ramp engages the stationary cam, thereby restricting the arm assembly from twisting.
Claim 4
Independent Claim
76 words
A method of restricting the resonance of vibrations in a leaf spring arm assembly for a disk recorder machine caused by variations in the contact interface between a rigid mount and a leaf spring on an arm assembly cantilevered from the mount comprising the step of cantilevering the leaf spring of the arm assembly from a localized contact point between the leaf spring and the rigid mount thereby restricting the contact interface to an isolated point.
Claim 5
Independent Claim
76 words
A method of restricting the resonance of vibrations in a leaf spring arm assembly for a disk recorder machine caused by variations in the contact interface between a rigid mount and a leaf spring on an arm assembly cantilevered from the mount comprising the step of cantilevering the leaf spring of the arm assembly from a localized contact point between the leaf spring and the rigid mount thereby restricting the contact interface to an isolated point.
Claim 6
Dependent Claim
19 words
The method of claim 3 wherein the contact point is substantially on the centroidal axis of the arm assembly.
References Cited (Backward Citations)
US3713121A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-01-14 | 1977-07-16 | 1978-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-14 | 1981-07-16 | 1982-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-14 | 1985-07-16 | 1986-01-15 | $7700.00 | Window Closed / Lapsed |