Device for delivering an insulation enhancing polyurethane foam within profiles used in doors, windows and related applications

A device adapted to deliver an insulation enhancing polyurethane foam within profiles used in doors, windows and related applications, wherein said insulation enhancing polyurethane foam is supplied within a chamber (25, 35) being formed in between a pair of profile portions (21, 22) of a thermally insulated sash profile assembly or a pair of profile portions (31, 32) of a thermally insulated frame profile assembly, said pairs of profile portions (21, 22), (31, 32) being interconnected with a pair of polyamide profile connecting members (23, 24) and (33, 34) respectively, said chamber (25, 35) being delimited by adjacent walls of the profile portions (21, 22) and (31, 32) and the polyamide profile connecting members (23, 24) and (33, 34), said device comprising:

• an insulating material supply member (1) housed within a housing (la) and adapted to slide outwardly from said housing (la) and move linearly along said chamber (25, 35) of a thermally insulated sash or frame profile assembly, said insulating material supply member (1) comprising two independent pipes (8, 9) delivering two distinct constituents (A) and (B) of insulating material and an air supply pipe (7), said two pipes (8, 9) delivering the distinct constituents (A) and (B) of the insulating material and said air supply pipe (7) being jointly driven longitudinally along said chamber (25, 35) of the thermally insulated sash or frame profile assembly subject to being filled with said insulating material;
• a polyurethane forming and discharge member (2) comprising a non-return valve (3) adapted to avert reverse flow of said constituents (A) and (B), a mixing compartment (4) wherein said constituents (A) and (B) are mixed and form a polyurethane foam insulating material and a polyurethane supply nozzle (5), said polyurethane forming and discharge member (2) being adapted to receive a predetermined flow of said two constituents (A) and (B) delivered from said pipes (8, 9) and of air delivered through said air supply pipe (7), flowing past said non-return valve (3) within said mixing compartment (4), whereby said polyurethane foam is being discharged through said polyurethane supply nozzle (5) at a fore end of said polyurethane forming and discharge member (2), said polyurethane forming and discharge member (2) being adapted to initiate injection of the polyurethane foam within said chamber (25, 35) at one end of the sash or frame profile length with a scope of filling said chamber (25, 35) with the polyurethane foam insulating material (26, 36) as the polyurethane supply nozzle (5) moves rearward at a predetermined speed until the polyurethane supply nozzle (5) reaches another end of said sash or frame profile length;
• an arrangement administering the parameters of said constituents (A) and (B) including containers (13, 14) continuously filled with said constituents, pumps adapted to pump the constituents from corresponding tanks (11, 12) and fill said containers (13, 14) with said constituents (A) and (B) and pumps (15) adapted to deliver said constituents (A) and (B) to said pipes (8, 9) and an electronics and circuitry unit (16), and
• a central processing unit (20) adapted to receive data of ambient conditions of temperature and humidity and of dimensions of said chambers (25, 35) and of length of the thermally insulated sash or frame profile assembly subject to receive the insulating material and appropriately adjust a quantity of the constituents (A) and (B) of the insulating material being supplied to said insulating material supply member (1) with a scope of obtaining a polyurethane foam insulating product of a selected density,
• wherein said insulating material supply member (1) and said polyurethane forming and discharge member (2) are adapted to perform a three-dimensional displacement to orient said polyurethane delivery nozzle (5) centrally within the chamber (25, 35) subject to being filled with the polyurethane insulating material and in that said polyurethane delivery nozzle (5) is provided with a rotating capacity through an arc of −45° to +45° to align the polyurethane delivery nozzle (5) in the longitudinal direction of the sash or frame profile assembly subject to being filled with the polyurethane foam insulating material.