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Publication numberUS1447533 A
Publication typeGrant
Publication dateMar 6, 1923
Filing dateMay 15, 1922
Priority dateMay 15, 1922
Publication numberUS 1447533 A, US 1447533A, US-A-1447533, US1447533 A, US1447533A
InventorsChopieska Frank S
Original AssigneeChopieska Frank S
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Piston ring
US 1447533 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

Mar. 6, 1923. 1,447,533

F. s. CHOPIESKA PIST"-N RING Filed May 15, 1922 Patented Mar. 6, 1923.



Application filed May 15,

To all whom it may concern:

Be it known that I FRANK S. CHOPIESKA, a citizen of the United States, residing at La Crosse, in the county of La Crosse and State of Wisconsin, have invented a new and useful Piston Ring, of which the following is aspecification.

This invention has reference to piston packing, and aims to provide a novel form of piston ring to insure a fluid-tight connection between the ring and wall of the cylinder in which the same is moving.

An object of the invention is to provide a piston ring including a plurality of sections, said sections being constructed to prevent movement of one section with respect to the other section.

A still further object of the invention is the provision of alock at the ends of one of the sections, whereby when the ends are moved into engagement with each other, they will be interlocked to insure a fluidtight connection.

With the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed, may be made within the scope of what is claimed, without departing from the spirit of the invention.

Referring to the drawing: Figure 1 is a perspective view of a piston 'ring constructed in accordance with the present invention. v

Figure 2 is a perspective view of one section of the ring.

Figure 3 is a perspective view of the outer section of the ring.

Figure 4 is a fragmental detail view disclosing the interlocking ends of the outer section.

Referring to the drawing in detail, the device embodies an inner ring section 5 and an outer ring section-6, the inner ring section 5 being split and provided with interlocking ends 7 The inner ring section is formed with peripheral flanges 8 which. are disposed in 1922. Serial No. 560,966.

spaced relation with each other to provide a clearance for the outer ring section 6, which is shown as fitted in the inner ring section 5. One end of the inner section. is .formed with spaced tongues 9 disposed adj acent to the edges thereof, which tongues are designed to move within the cut out portions I have provided a ring wherein the inner or supporting section thereof is exceptionally wide, lending resiliency to the ring structure causing the outer section to be forced into close engagement with the wall of the cylinder in which the ring is positioned It might be further stated that due to the interlocking ends of the inner section, the inner section is held in a true circular formationto prevent scoring of the cylinder by one of the ends moving radially beyond the opposed end.

Having thus described the invention, what is claimed as new is I A piston ring comprising an inner split ring section and an outer split ring section, the inner section having circumferential flanges, the outer ring section being supported by the inner section and disposed between the flanges, one of the ends of said inner section having tongues, the flanges adjacent to the opposite end having openings to receive the tongues, and means for preventing movement of one section circumferentially of the opposed section.

In testimony that I claim the fOIGgOiIlg as my own, I have hereto aflixed my slgnature in the presence of two witnesses.



Referenced by
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US6199871Sep 2, 1998Mar 13, 2001General Electric CompanyHigh excursion ring seal
US6237921Sep 2, 1998May 29, 2001General Electric CompanyNested bridge seal
US9017015 *Oct 27, 2011Apr 28, 2015General Electric CompanyTurbomachine including an inner-to-outer turbine casing seal assembly and method
US20130104565 *May 2, 2013General Electric CompanyTurbomachine including an inner-to-outer turbine casing seal assembly and method
WO1998044281A1 *Apr 1, 1997Oct 8, 1998Moriarty Maurice JSeal apparatus
U.S. Classification277/446, 277/491, 277/498
International ClassificationF16J9/00, F16J9/14
Cooperative ClassificationF16J9/14
European ClassificationF16J9/14