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US 4,575,966 AGranted
Magnetically sealed sliding window assembly
AssigneeJarrow Products, Inc.
InventorJohn T. Gerritsen
Life of this patent
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AssigneeJarrow Products, Inc.
InventorJohn T. Gerritsen
Estimating the term…
A magnetically sealed sliding window system including a perimetric frame including header and base portions each defining a narrow channel for receiving a glazing pane and an adjacent second channel. A sliding panel is seated within the second channel. Longitudinal magnets are secured on the inner face of the sliding panel. Where the perimetric frame is formed of nonmagnetic material, magnets also are secured along the header and base second channel sections. No magnets are required on the perimetric frame when same is formed of magnetic material such as steel. In sealed condition, the sliding panel is positioned above the floor of the base channel with the panel magnetically held. The magnets have longitudinally extending magnetic poles establishing a magnetic coupling between adjacent unlike poles. The height of the sliding panel is less than the height of the frame. Translation of the sliding panel first in a vertical direction, shifts the adjacent magnetic polarity so that repulsion force causes the sliding panel to be displaced into an offset vertical plane, disengaging the magnets dropping the sliding panel into the base channel and freeing same for translation in a horizontal direction. Release of the panel results in reestablishment of the magnetic coupling. A purchase is provided on the outer face of the sliding panel of facilitate translation of the panel. Ramps are provided when the frame is formed of magnetic material to displace the sliding panel into the offset vertical plane when the panel is vertically translated to dislodge the sliding panel from the magnetic coupling. A strip of ferrous material may be applied to the perimetric frame header and base sections if same are formed of nonmagnetic material.
A sliding window system comprising a perimetric frame including channel means and at least one double faced panel received within said channel means for sliding movement therein, cooperable longitudinally disposed magnetic means within said channel means and carried by said panel for establishing a sealed engagement therebetween on a static condition of the panel to immobilize said panel and being disengageable in a slidable condition of the panel offset vertically from the static condition to permit sliding movement of said panel, said magnetic means comprising elongate magnets poled longitudinally, means for adhering said magnets to said panel on one face thereof adjacent the edges thereof and pull means on the opposite face of said panel capable of being grasped for translating said panel in a first direction to disengage said magnets displacing said panel to the slidable condition, and thereafter to enable translation in a second direction to a selected location along the length of said channel means, said latter means being releasable to reestablish said sealed engagement at the selected location.
In a sliding panel assembly for use as a primary or secondary closure wherein there is a perimetric frame for receiving at least one sliding panel, the frame having channel means, at least one slidable panel being received within said channel means, cooperable magnet means for establishing a magnetic coupling between the frame and the panel in a static condition thereof and said coupling being released when the panel assumes a second slidable condition relative to said frame, means to effect displacement of said panel between said static and slidable conditions, the static condition establishing said magnetic coupling, the slidable condition occurring when said panel is displaced offset from the plane occupied during the static condition so that the panel is freed for slidable translation.
Dependencies are inferred from the claim text.