Metal working – Means to assemble or disassemble – Means comprising hand manipulatable tool
Reexamination Certificate
2006-08-29
2006-08-29
Bryant, David P. (Department: 3726)
Metal working
Means to assemble or disassemble
Means comprising hand manipulatable tool
C029S407050, C033S605000
Reexamination Certificate
active
07096553
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) can be accurately measured.
REFERENCES:
patent: 3287812 (1966-11-01), Smith
patent: 5038449 (1991-08-01), Huggins, Jr.
patent: 6421930 (2002-07-01), Foster
patent: 6594915 (2003-07-01), Matsumiya et al.
Childs & Albert Piston Ring Squaring Tool, 1 page (undated).
Tavia Performance Specialty Tool & Accessories Piston Ring Squaring Tools, 1 page (Jan. 27, 2004).
Autosales, Incorporated
Renner Kenner Greive Bobak Taylor & Weber
LandOfFree
Piston ring sizing device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Piston ring sizing device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Piston ring sizing device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3677398