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US 4,306,344 AGranted
Flexible disc reinforcing device for discs of multiple sizes
AssigneeInmac
InventorJoseph J. Floss
Life of this patent
Estimating the term…
Abstract
A tool is provided which enables one to place a reinforcing ring on both standard and miniature flexible magnetic discs. By a simple reversal of the parts two sizes of discs can be accommodated.
Claims1
A tool for applying reinforcing rings to two different sizes of flexible magnetic discs, each having a central round hole, comprising in combination:
- a. a centering tool including,
- (1) a first flat surface having a first central, round, elevated shoulder,
- (2) said first shoulder having a diameter corresponding to the hole in a large magnetic disc,
- (3) a second flat surface above and supported by said first shoulder and having a second smaller, round central shoulder,
- (4) said second shoulder corresponding to the hole in a smaller magnetic disc,
- b. a pressure ring having flat surfaces on each side thereof, each with a central opening, one corresponding in size to the first shoulder and the other corresponding in size to the second shoulder, whereby:
- c. said pressure ring is adapted to press against the first flat surface of the centering tool and turned over to press against the second flat surface of the centering tool.
4 more elements
Dependencies are inferred from the claim text.