US 4,764,108 AGranted

Modular oven

AssigneeHaden Schweitzer Corporation

InventorsMaximilian K. Carthew, Joseph D. Donahue

Life of this patent

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Abstract

An oven construction in which an elongated oven assembly is provided by manufacturing a plurality of oven modules at a factory location and then shipping the modules to the usage site where they are assembled together in end-to-end fashion to form the final oven assembly. Each oven module includes an outer shell and an inner shell mounted so as to be spaced apart for insulation therebetween. The shells are interconnected at one point along the length thereof, but are allowed to expand differentially along the remainder of their lengths. The outer shell is rigidly tied to a foundation but the inner shell, through any of various approaches, is allowed to slide or move relative to the foundation everywhere except the one point where it is secured to the outer shell. Each module has a bellows-type expansion joint around the periphery of one end to allow for interconnection of the modules, one to another.

Claims3

Dependent claims

An oven comprising:

a plurality of longitudinally extending oven modules positioned in end-to-end relation;
each of said modules having an outer shell and an inner shell and insulating material disposed between said shells;
at least one of said modules having a roof panel including self-releasing connector means for joining said panel to said one module;
said connector means including inner connecting elements adapted to engage inner fastening elements disposed on the inner shell of said one module and outer connecting elements adapted to engage outer fastening elements disposed on the outer shell of said one module;
said respective connecting elements and fastening elements having a configuration to permit self-releasing disengagement upon a sudden increase in pressure within said oven and to thereby allow separation of said panel from said one module without substantial damage to said one module;
said connector means also including a seal between said panel and said one module;
and
said connecting elements and fastening elements forming movable joints to permit relative movement between said panel and said one module due to thermal expansion and contraction.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 07/034,799Filed 3 Apr 1987 · continuation
Priority: 24 Feb 1986
Granted: 16 Aug 1988
Term ends: Not estimatedThe source records don’t support an estimate.

Classification7 codes

F27B 9/32
Details, accessories or equipment specially adapted for furnaces of these types: casings
F27B 9/029
Of multiple-track type; of multiple-chamber type; Combinations of furnaces: multicellular type furnaces constructed with add-on modules
F27D 1/00
Casings
F27D 1/06
Characterised by the form , e.g. shape of the bricks or blocks used: composite bricks or blocks , e.g. panels, modules