Work holders – Suspended holder
Reexamination Certificate
2005-08-23
2005-08-23
Watson, Robert C. (Department: 3723)
Work holders
Suspended holder
Reexamination Certificate
active
06932334
ABSTRACT:
A device is attached to a building structural element adjacent to a position where ductwork will be installed and is used to support that ductwork during installation. One worker can thus install long sections of ductwork without requiring assistance of other workers to support the ductwork. The device is collapsible and is adjustable and includes at least one clamp element.
REFERENCES:
patent: D126411 (1941-04-01), Audette
patent: 2282624 (1942-05-01), Upson et al.
patent: 3718307 (1973-02-01), Albanese
patent: 5024403 (1991-06-01), Carlston
patent: 6202969 (2001-03-01), Orr
patent: 6296211 (2001-10-01), Snyder
Schoonover Donald R.
Watson Robert C.
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