Title: Burglar alarm for doors

Abstract: A warning device to discourage the unauthorized entering of doors and windows utilizing a spring contracted bellows held in an extended condition by anchor means associated with building closure structure. Upon the opening of the associated door or window one of the anchor means is released permitting the bellows to be rapidly contracted producing an audible sound by means of a vibratable reed to warn the occupant and discourage the intruder from further entry.

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Inventors: Merriman, Henry H. (Jackson, MI, US)

Application Number: 701900
Filing Date: 1976-07-01
Publication_date: 1977-09-27
Assignee:
Primary Class(es): 116/86 92/5R
Other Classes:
US Patent Ref:

1367651	Feb, 1921	Ashley	116/86.
3618557	Nov, 1971	Merriman	116/86.
3774572	Nov, 1973	Borraccio	116/67.
3952688	Apr, 1976	Merriman	116/67.

Other Refs:
Primary Examiner: Swisher, S. Clement
Assistant Examiner: Corr, Denis E.
Attorney: Beaman & Beaman