Disc clamp adjustment using heat
AssigneeSeagate Technology LLC
InventorsRobert B. Church, Gary E. Bement
Life of this patent
Estimating the term…
Abstract
A method of adjusting a distribution of clamping pressure applied to a disc by a disc clamp includes identifying an uneven distribution of clamping pressure applied to the disc by the disc clamp. A quantity of heat is determined and applied to the disc clamp to remedy the uneven distribution of clamping pressure. A system for adjusting a clamping pressure applied to a data storage disc by a disc clamp includes a disc pack assembly having a disc clamp securing a disc to a spindle motor hub. The system also includes means for identifying an uneven distribution of clamping pressure applied to the disc by the disc clamp and for remedying the uneven distribution of clamping pressure by heating the disc clamp for a period of time.
Claims22
In a disc pack assembly having a disc clamp securing a data storage disc to a spindle motor hub, a method of adjusting a distribution of clamping pressure applied to the disc by the disc clamp, the method comprising steps of:
- (a) identifying an uneven distribution of clamping pressure applied to the disc by the disc clamp;
- (b) determining a quantity of heat to be applied to the disc clamp to remedy the uneven distribution of clamping pressure;
- and
- (c) applying the quantity of heat to the disc clamp to remedy the uneven distribution of clamping pressure.
In a disc pack assembly having a disc clamp securing a data storage disc to a spindle motor hub, a method of adjusting a distribution of clamping pressure applied to the disc by the disc clamp, the method comprising steps of:
- (a) analyzing a contour of a data surface of the disc;
- (b) identifying from the contour an uneven distribution of clamping pressure applied to the disc by the disc clamp;
- (c) determining a quantity of heat to be applied to the disc clamp to remedy the uneven distribution of clamping pressure applied to the disc by the disc clamp;
- and
- (d) applying the quantity of heat to the disc clamp to remedy the uneven distribution of clamping pressure applied to the disc by the disc clamp.
A system for adjusting a clamping pressure applied to a data storage disc by a disc clamp, the system comprising:
- a disc pack assembly having a disc clamp securing a disc to a spindle motor hub;
- and
- 5 means for identifying an uneven distribution of clamping pressure applied to the disc by the disc clamp and for remedying the uneven distribution of clamping pressure by heating the disc clamp for a period of time.
Dependencies are inferred from the claim text.