Heat resistant suit for use in boiler repair
First Claim
1. A heat resistant suit for use in high temperature environments in excess of about 150°
- F., said suit comprising;
a pair of heat resistant boots;
heat resistant trousers having legs for overlapping the boots;
means for securing the trouser legs tightly against the boots in overlapping relation thereto;
a pair of heat resistant gloves;
a heat resistant coat having a waist portion for overlapping the trousers and a pair of arms for overlapping the gloves;
means for securing the waist portion of the coat tightly against the trousers in overlapping relation thereto;
a heat resistant hood having a transparent lens and a nedk portion for overlapping the coat;
means for securing the neck portion of the hood tightly against the coat in overlapping relation thereto;
a plurality of interconnected tubes extending within the trousers, coat and hood for applying cool air therein for cooling the body;
an inlet fitting on one of said legs of the trousers connected with said tubes for delivering cool air thereto; and
an elongate flexible hose having one end for receiving refrigerated air from an external source thereof and an opposite end adapted for coupling with said inlet fitting to deliver cool air thereto, said opposite end being disconnected from said inlet fitting in response to pulling on the hose with a force in excess of a preselected level.
2 Assignments
0 Petitions
Accused Products
Abstract
A method of repairing large coal fired boilers and the like using a special heat resistant suit which enables workmen to erect scaffolding in the boiler at about 1100° F. and to enter the boiler at a temperature above 150° F. to make the necessary repairs. Refrigerated air and air for breathing by the workmen are supplied from external sources through a special insulated hose having a breakaway connection with a fitting on one leg of the suit. The refrigerated air is distributed within the suit through apertured tubes and an apertured vest. Air for breathing is supplied to a face mask. A portable air tank automatically begins supplying the face mask when the hose is detached. A harness mounted safety reel and cable permits workers to drop from the scaffolding for fast escape in an emergency. A brake controls the rate of descent.
41 Citations
19 Claims
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1. A heat resistant suit for use in high temperature environments in excess of about 150°
- F., said suit comprising;
a pair of heat resistant boots; heat resistant trousers having legs for overlapping the boots; means for securing the trouser legs tightly against the boots in overlapping relation thereto; a pair of heat resistant gloves; a heat resistant coat having a waist portion for overlapping the trousers and a pair of arms for overlapping the gloves; means for securing the waist portion of the coat tightly against the trousers in overlapping relation thereto; a heat resistant hood having a transparent lens and a nedk portion for overlapping the coat; means for securing the neck portion of the hood tightly against the coat in overlapping relation thereto; a plurality of interconnected tubes extending within the trousers, coat and hood for applying cool air therein for cooling the body; an inlet fitting on one of said legs of the trousers connected with said tubes for delivering cool air thereto; and an elongate flexible hose having one end for receiving refrigerated air from an external source thereof and an opposite end adapted for coupling with said inlet fitting to deliver cool air thereto, said opposite end being disconnected from said inlet fitting in response to pulling on the hose with a force in excess of a preselected level. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
- F., said suit comprising;
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14. A heat resistant suit for use in high temperature environments in excess of about 150°
- F., said suit comprising;
a pair of heat resistant boots; heat resistant trousers having legs for overlapping the boots; means for securing the trouser legs tightly against the boots in overlapping relation thereto; a pair of heat resistant gloves; a heat resistant coat having a waist portion for overlapping the trousers and a pair of arms for overlapping the gloves; means for securing the waist portion of the coat tightly against the trousers in overlapping relation thereto; a heat resistant hood having a transparent lens and a neck portion for overlapping the coat; means for securing the neck portion of the hood tightly against the coat in overlapping relation thereto; a harness having a first set of straps on said coat and a second set of straps on said trousers; releasable means for securing said first set of straps to said second set of straps when the coat and trousers are worn; a reel carried on said harness; a safety line wound on said reel and having a free end; safety hook means on said free end of the safety line for releasable attachment to a support member; and brake means for controlling the unwinding of said safety line from the reel, whereby said safety hook means can be attached to the support member and a worker wearing the suit can descend therefrom with said brake means controlling the unwinding of said safety line from the reel to control the rate of descent of the worker. - View Dependent Claims (15, 16, 17, 18, 19)
- F., said suit comprising;
Specification