Title: Frangible insert

Abstract: An insert comprising a body to be embedded in concrete and having a prong smaller in size than said body, connected at one end to said body by a frangible neck. The prong has external ridges and is adapted to be driven by a hammer into an undersized opening in a mold to securely mount the insert in place. After the concrete has set, the prong is automatically broken off, i.e., separated from the embedded portion of the insert, as an incident to the stripping of the mold from the work.

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Inventors: Dorris, John P. (Newport Beach, CA, US)

Application Number: 516139
Filing Date: 1974-10-18
Publication_date: 1976-09-28
Assignee: DDK Investments, Ltd. (Fountain Valley, CA)
Primary Class(es): 52/98 52/699, 249/96, 411/82, 411/908
Other Classes:
US Patent Ref:

809177	Jan, 1906	Drolshagen	52/704.
1107544	Aug, 1914	Ogden	85/32.
1573151	Feb, 1926	Fishel	52/700.
1613800	Jan, 1927	Lehnert	52/98.
1627554	May, 1927	Fishel	52/705.
2820209	Jan, 1958	Whitted	85/19.
2976345	Mar, 1961	Whitted	85/80.
3393597	Jul, 1968	Hoaglund	85/35.
3434521	Mar, 1969	Flora	85/35.
3685783	Aug, 1972	Hilson	249/97.

Other Refs: 715,77569,195

Aug, 1965	CA
�, 1969	DL

Primary Examiner: Purser, Ernest R.
Assistant Examiner: Randolph, William
Attorney: Glemser; Harry W. F.