Piston ring grinder

Details Piston ring grinder Piston ring grinder

2005-08-23

2005-08-23

Rose, Robert A. (Department: 3723)

Abrading

Frame or mount

Portable abrader

C451S278000

Reexamination Certificate

active

06932686

ABSTRACT:
A piston ring grinding device (10) includes a base portion (12) which is provided with spaced collars (21, 22) which receive an axle (28). A grinding wheel (26) having an abrasive surface (27) is carried by the axle (28), and a handle assembly (30) is provided for rotation of the axle (28) and the grinding wheel (26). The axle (28) may be received in either the first collar (21) or the second collar (22) for selective right hand or left hand operation of the device (10). An adjustable locator (60) is Y-shaped having an elongate body (62) with a channel (70) therein and branches (64, 65) which provide contact points (68, 69) for the piston ring (R). Once the piston ring (R) is engaging the contact points (68, 69), and thereby properly positioned on the base portion (12), a thumbscrew (73) may be tightened to attach the locators (60) to the base portion (12), and the ends of the piston ring (R) are ready to be ground.

REFERENCES:
patent: 1540765 (1925-06-01), Daniels
patent: 1750195 (1930-03-01), Sanders
patent: 1916783 (1933-07-01), Daniels
patent: 2013262 (1935-09-01), Wilsey
patent: 2055373 (1936-09-01), Zilliox
patent: 2487670 (1949-11-01), Pezous
patent: 4964240 (1990-10-01), Martino
Summit Racing Universal Piston Ring Filer, online catalog excerpt, 1 page (Jan. 26, 2004).
Summit Racing Manual Piston Ring Filer, online catalog excerpt, 1 page (Jan. 26, 2004).
Manley Performance Products, Inc., Piston Ring End Gapping Tool, advertisement, 1 page (undated).

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