초록 ▼

A manually-actuated pressure-equalization system for a double-glazed, hermetically-sealed window assembly comprising a spring-biased push-button valve installed in one of the glass panes. When actuated the valve provides an air passageway coupling the interior airspace between the two panes to the a

A manually-actuated pressure-equalization system for a double-glazed, hermetically-sealed window assembly comprising a spring-biased push-button valve installed in one of the glass panes. When actuated the valve provides an air passageway coupling the interior airspace between the two panes to the ambient air so as to equalize any air pressure differential therebetween.

대표청구항 ▼

A pressure-equalization system for a hermetically-sealed, double-glazed window assembly of a type having a pair of glass panes spaced apart with an intervening zone of trapped air serving as a thermal insulator, comprising a manually-actuable hermetic valve installed in an opening formed in at least

A pressure-equalization system for a hermetically-sealed, double-glazed window assembly of a type having a pair of glass panes spaced apart with an intervening zone of trapped air serving as a thermal insulator, comprising a manually-actuable hermetic valve installed in an opening formed in at least one of the panes of said window assembly so as to provide when actuated an air passageway coupling the trapped air zone to the ambient atmosphere, said valve having a spring-biased pushbutton-type plunger element positioned inside and cooperating with an axially-extending central cylindrical bore member fitted into said opening, said bore member having a pair of enlarged flange portions at either axial end, said plunger element being biased to hermetically seal the opening in said bore member, and said flange portions being in sealing engagement with respect to the surfaces of said one of said panes, said plunger element having a sealing member and said bore member having a sealing surface for matingly contacting said sealing member to hermetically seal the opening in said bore member, said plunger element further including means defining a manually-engageable actuating area against which a force can be applied to move said sealing member and sealing surface apart, said plunger element having exterior surface means on a portion of said plunger element located axially between said sealing member and said actuating area forming said air passageway between the exterior of said portion of said plunger element and said opening in said bore member for coupling said trapped air zone to the ambient atmosphere.