Title: Roof expansion joint

Abstract: A roof expansion joint for flat built up roofs forms an elevated elongated structure bridging an expansion slot-like opening between adjacent roof sections to provide a movable watertight seal therebetween formed of rigid slideably engaged members.

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Inventors: Roth, Abraham H. (Youngstown, OH, US)
Roth, Dave (Youngstown, OH, US)

Application Number: 593013
Filing Date: 1975-07-03
Publication_date: 1977-02-01
Assignee: Roth Bros. Inc. (Youngstown, OH)
Primary Class(es): 52/60 52/96, 52/469
Other Classes:
US Patent Ref:

3296762	Jan, 1967	Thom	52/469.
3421267	Jan, 1969	Balzer et al.	52/58.

Other Refs:
Primary Examiner: Faw, Jr., Price C.
Assistant Examiner: Friedman, Carl D.
Attorney: Harpman; Webster B.