Piston ring sizing device
US7096553B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 12, 2004 |
| Grant date | Aug 29, 2006 |
| Priority date | — |
| Expiry date | Oct 8, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/53913
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A device (10) adapted to position a ring (R) in the bore (B) of a cylinder (C) so that the ring (R) is perpendicular to the axis of the cylinder (C) includes a first segment (11) and a second segment (12). The first segment (11) has a tongue (20) which is slidably received in a groove (34) in the second segment (12). A threaded shaft (37) of a hand screw (35) is received through the groove (34) and into a threaded aperture (21) in the tongue (20) to attach the first segment (11) to the second segment (12). Arcuate surfaces (18) and (27) of the first and second segments (11, 12), respectively, define a portion of the circumference of a circle approximately the diameter of the bore (B) when the segments (11, 12) are attached to each other. The ring (R) is positioned in the bore (B) and the device (10) is inserted in the bore (B) until the lip (19, 28) of the first and second segments (11, 12) rest on the top edge of the cylinder (C). The bottom (41) of the surfaces (18, 27) thus push against the ring (R), and because the surfaces (18, 27) are the same height, the ring (R) is positioned perpendicularly to the axis of the cylinder (C) so that the gap (G) between the ends of the ring (R…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.