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US 4,789,323 AGranted
Ring making apparatus
OwnerWilliam R. Hudsoninventor
Life of this patent
Estimating the term…
Abstract
Apparatus for forming graphite into packing rings utilizes a press to compress the graphite within a movable die. The graphite is supplied to the press by the combination of a turntable-type feeder and a tubular feeder which places increments of the graphite in dies carried by the turntable. The punch has a retractable pin which cooperates with a lower core pin to maintain the interior diameter of the rings as they are formed. The press and turntable are connected for synchronous operation.
Claims12
Apparatus for forming graphite into rings comprising:
- (a) feed means for supplying base graphite in the form of elongated strips, including tubular housing means having a selected inside diameter for holding said elongated strips of base graphite in a preformed coiled condition about a vertical axis;
- (b) means for separating said base graphite into increments thereof;
- (c) forming means for compressing said increments of said base graphite into rings;
- and
- (d) transport means receiving said increments of said base graphite from said feed means for moving said increments of said base graphite to said forming means.
2 more elements
Apparatus for forming rings from base graphite comprising:
- (a) feed means for providing increments of base graphite foil formed into rolled strips having a predetermined volume and shape including a tubular member having a selected inside diameter for holding said rolled strips of said base graphite in a preformed rolled condition about a vertical axis and means for separating said base graphite into said increments thereof;
- (b) compression means for compressing said graphite foil into rings including means for maintaining a predetermined inside diameter for said rings;
- and
- (c) transport means for moving said increments of base graphite foil to said compression means from said feed means.
1 more element
Dependencies are inferred from the claim text.