Title: Peening tool

Abstract: An improved peening tool comprising a cylindrical body having a plurality of holes each adapted to receive a spherically shaped ball bearing. A sleeve member having a plurality of holes is located over the cylindrical body so that each hole in said sleeve is aligned with the hole in said cylindrical body. The diameter of the hole in the sleeve is less than the diameter of the spherically shaped ball. A rotatable driver body is located within said cylindrical body and contains an even number of individual rotatable hammers adapted to sequentially contact said spherical balls. During operation each hammer is free to rotate about its own axis thereby presenting a new contacting point for moving the spherical balls.

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Inventors: Keen, David P. (Redondo Beach, CA, US)

Application Number: 538301
Filing Date: 1975-01-03
Publication_date: 1976-01-27
Assignee:
Primary Class(es): 72/75 72/76
Other Classes:
US Patent Ref:

924440	Jun, 1909	Dowell	29/148.
1278359	Sep, 1918	Lane	173/94.
1920102	Jul, 1933	Nolan	29/148.
3239282	Mar, 1966	Schroll et al.	308/201.
3266825	Aug, 1966	Magorien	308/201.
3444714	May, 1969	Gustkey	72/76.
3517533	Jun, 1970	Koznar	72/76.
3610008	Oct, 1971	Foedisch	72/76.

Other Refs:
Primary Examiner: Larson, Lowell A.
Assistant Examiner:
Attorney: Singer & Singer