Title: Self ejecting drill chuck key

Abstract: A self-ejecting key device for drill chucks has a main body with a handle, a key element and a forward guide pin with a groove along one side for retaining a slidable ejector member. The groove is aligned with a bore that extends through the key element and main body. Retained within the bore is a coiled spring which is secured to a slidable ejector pin in the groove that projects outwardly from the side of the guide pin.

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Inventors: Travis, Sigmund D. (Brookfield, IL, US)

Application Number: 731782
Filing Date: 1976-10-12
Publication_date: 1978-04-25
Assignee: C. R. Reichel Engineering Co. Inc. (San Francisco, CA)
Primary Class(es): 279/148
Other Classes:
US Patent Ref:

2609719	Sep, 1952	Lilley	81/90.
2660081	Nov, 1953	Dossie	279/1.

Other Refs:
Primary Examiner: Meister, J. M.
Assistant Examiner:
Attorney: Owen, Wickersham & Erickson