Clamp for making tubing

Details Clamp for making tubing Clamp for making tubing

1995-10-16

1997-12-02

Sells, James

Adhesive bonding and miscellaneous chemical manufacture

Surface bonding means and/or assembly means therefor

Chamber enclosing work during bonding and/or assembly

156285, 156499, 1565833, B32B 3120

Patent

active

056931751

ABSTRACT:
An apparatus for applying pressure and heat to a tubular workpiece made up of layers of wood and bonding agent and formed on a tubular mandrel having a sealed, slit tube engageable with the exterior of the workpiece and acting with a housing and end walls to form an air pressure chamber by which the slit tube can be circumferentially expanded and contracted throughout its length and at the same time heat can be applied to the housing to heat the exterior of the tubular workpiece while heated air is circulated through the tubular mandrel on which the workpiece is supported to accelerate curing.

REFERENCES:
patent: 2457504 (1948-12-01), Snoke
patent: 2477180 (1949-07-01), Hemming
patent: 2573920 (1951-11-01), Ilch
patent: 3340117 (1967-09-01), Inoue
patent: 3788926 (1974-01-01), Weisinger
patent: 3891489 (1975-06-01), Bordner et al.
patent: 3950211 (1976-04-01), Erwin
patent: 4710251 (1987-12-01), Borchardt
patent: 4997511 (1991-03-01), Newsom
patent: 5073098 (1991-12-01), Mishima

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