Method for rapid insulation of expanses
AssigneeFomo Products, Inc.
InventorsStefan Gantenbein, Thomas L. Fishback, Paul Hurray, Anthony J. Taylor, Richard L. Dansizen
Life of this patent
Estimating the term…
Abstract
A process for cost-effectively and rapidly insulating a desired surface with spray foam insulation is described which includes the application of a polyurethane foam dispensed through heated conduits into a dispensing gun having a nozzle with essentially planar divergent lips having a triangular prism opening, the lips of the nozzle diverging at an angle of between about 5 and 35° inclusive, more preferably between 8 to 15° inclusive, most preferably 10 to 12° inclusive, thereby achieving application rates which are in excess of 70 Ft2/min, and optimally in excess of 100 Ft2/min.
Claims20
A process for insulating a desired surface with spray foam insulation which comprises:
- (a) pressurizing at least two storage volumes containing chemical components of polyurethane spray insulation to a pressure less than or equal to about 200 psi;
- (b) attaching one end of a pair of heatable conduits to said storage volumes;
- (c) attaching opposed ends of said conduits to a mixing and dispensing nozzle, said nozzle comprising:
- (i) a body;
- (ii) a removable nozzle attached to said body,
- (iii) said nozzle having a static mixing means within said nozzle;
- (iv) said nozzle further having a pair of lips diverging at an angle of between about 8° and 15° inclusive;
- and
- (v) said nozzle further having a pair of opposed essentially triangular-shaped notches at each end of said lips;
- and
- (d) dispensing said insulation on said desired surface at an application rate greater than or equal to approximately 70 Ft2/min.
A process for insulating a desired surface with spray foam insulation which comprises:
- (a) pressurizing at least two storage volumes containing chemical components of polyurethane spray insulation to a pressure less than or equal to about 200 psi;
- (b) attaching one end of a pair of heatable conduits to said storage volumes;
- (c) attaching opposed ends of said conduits to a mixing and dispensing nozzle, said nozzle comprising:
- (i) a body;
- (ii) a removable nozzle attached to said body,
- (iii) said nozzle having a static mixing means within said nozzle;
- (iv) said nozzle further having a pair of lips diverging at an angle of between about 8 and 15° inclusive;
- and
- (v) said nozzle further having a pair of opposed notches at each end of said lips;
- and
- (d) dispensing said insulation on said desired surface at an application rate greater than or equal to approximately 80 Ft2/min.
A process for insulating a desired surface with spray foam insulation which comprises:
- (a) pressurizing at least two portable storage volumes containing chemical components of a two-component polyurethane spray insulation to a pressure less than or equal to about 200 psi with nitrogen;
- (b) attaching one end of a pair of sheathed, heated conduits to said storage volumes, said conduits heated to approximately 70° F. to 90° F. inclusive;
- (c) attaching opposed ends of said conduits to a mixing and dispensing nozzle, said nozzle comprising:
- (i) a body;
- (ii) a removable nozzle attached to said body,
- (iii) said nozzle having a static mixing means within said nozzle;
- (iv) said nozzle further having a pair of essentially planar lips diverging at an angle of between about 10 and 12° inclusive;
- (v) said nozzle further having a pair of opposed notches at each end of said lips;
- and
- (vi) said nozzle further comprising a trigger to control dispensing;
- and
- (d) dispensing said insulation on said desired surface at an application rate greater than or equal to approximately 90 Ft2/min.
Dependencies are inferred from the claim text.