Patent Application
20170275944
The present invention relates to a window screen apparatus. More specifically, the present invention relates to an apparatus that can be used to place a screen on casement windows and the like.
Many condominiums, apartments, and standalone homes feature windows that cannot accommodate a traditional window screen. One common example is that of casement windows, which push or pull inwards or outwards to open (and move the opposite direction to close). This inward and outward movement prevents the use of traditional full window screens that run parallel to windows; commonly seen with sash windows that feature an alternative push up/pull down movement.
While both methods of window opening have their advantages, a drawback of casement windows and other windows, which cannot accommodate a traditional screen, is the inability to stop bugs and other pests from entering a dwelling while the window is open. In the United States, the entrance of such pests into the home is presently an annoyance that has the potential to become a serious public health concern with the proliferation of diseases transmitted by such pests. Additionally, globally, mosquito transmitted diseases are the number one cause of death in many countries.
Accordingly, there is a need for a window screen apparatus that can be used with casement windows and the like.
To meet the needs described above the present disclosure is directed to a window screen system for use with windows to prevent dirt, debris, and insects from entering into the interior of the unit. The window screen system is particularly useful for hopper, awning, tilt and turn, and utility window designs.
In an embodiment, the window screen system includes a window assembly including a permanent window frame and a movable window frame, wherein the permanent window frame includes a perimeter including a permanent bottom frame portion, a permanent first side frame portion, a permanent second side frame portion, and a permanent top frame portion, wherein the movable window frame includes a perimeter including a movable bottom frame portion, a movable first side frame portion, and a movable second side frame portion, and a movable top frame portion, wherein the movable window frame can move from a closed position to an open position, wherein in the closed position the perimeter of the movable window frame is in contact with the perimeter of the permanent window frame, wherein in the open position at least a portion of the perimeter of the movable window frame is not in contact with at least a portion of the permanent window frame; a rod system including at least one rod, wherein the rod system extends along a portion of the perimeter of the permanent window frame; and a mesh screen extending from the rod system to the movable window frame, wherein upon the movable window frame moving from the closed position to the open position, the mesh screen covers a gap created between the permanent window frame and the movable window frame.
In an embodiment, the window screen system includes a window assembly including a permanent window frame and a movable window frame, wherein the permanent window frame includes a perimeter including a permanent bottom frame portion, a permanent first side frame portion, a permanent second side frame portion, and a permanent top frame portion, wherein the movable window frame includes a perimeter including a movable bottom frame portion, a movable first side frame portion, and a movable second side frame portion, and a movable top frame portion, wherein the movable window frame can move from a closed position to an open position, wherein in the closed position the perimeter of the movable window frame is in contact with the perimeter of the permanent window frame, wherein in the open position at least a portion of the perimeter of the movable window frame is not in contact with at least a portion of the permanent window frame; an installed window frame configured to attach to at least a portion of the permanent window frame; a rod system attached to the installed window frame, wherein the rod system includes at least one rod extending along a portion of the perimeter of the installed window frame; and a mesh screen extending from the rod system to the movable window frame, wherein upon the movable window frame moving from the closed position to the open position, the mesh screen covers a gap created between the permanent window frame and the movable window frame.
An advantage of the present system is a screen that can be used with casement windows that keeps out bugs and other pests such as birds or vermin. While in America these creatures may pose an annoyance, elsewhere in the world these animals can threaten human life and spread many diseases. The screen system engages with casement windows, which typically do not have a screen system available.
Another advantage of the present is the system is not only keeping pests out, but also keeps pets and children within a residence. While not the strongest deterrent, a screen on a window that would otherwise be a wide-open gap may prevent pets and children from falling out of the window.
Yet another advantage of the present system is that it provides the potential for cost savings in the form of less electricity used to heat and cool a dwelling. Opening the windows when the weather permits prevents the need to run an HVAC system, lowering electricity costs and well as providing fresh air to a domicile. Such action is impractical for casement windows in areas with large pest populations since the dwelling will become inundated with bugs, etc. since no screen can readily be placed on this type of window. The present invention allows such a screen to be placed on windows that traditionally cannot accommodate one.
Still yet another advantage of the present system is that the low-profile design of the window screen apparatus does not block the view of the window on which the apparatus is placed. In many situations, casement windows are used over sash windows not only because of space requirements, but because casement windows allow for unimpeded views. Sash windows featuring a screen obstruct the window's view with a screen that also blocks sunlight. The present invention features a screen that covers the gap created by an open window, without the need to have the screen permanently visible over the window.
Additional objects, advantages and novel features of the examples will be set forth in part in the description which follows, and in part will become apparent to those skilled in the art upon examination of the following description and the accompanying drawings or may be learned by production or operation of the examples. The objects and advantages of the concepts may be realized and attained by means of the methodologies, instrumentalities and combinations particularly pointed out in the appended claims.
The drawing figures depict one or more implementations in accord with the present concepts, by way of example only, not by way of limitations. In the figures, like reference numerals refer to the same or similar elements.
The present disclosure is directed to a window screen system for use with windows to prevent dirt, debris, and insects from entering into the interior of the unit. Although the figures and examples typically illustrate an awning and/or hopper type of window, the window screen system is also useful for casement, utility, single hung, double hung, and tilt and turn window designs, among others. The system can be installed on existing window frames to provide screen protection only when the window is open and a screen is needed. As such, a user can have a clear view out of the glass window without the unsightliness, distortion, or solar blockage that a traditional “always visible” screen causes. The system disclosed is also applicable to windows that slide up and down, wherein the mesh screen extends from only the bottom portion of the permanent window frame to the bottom portion of the movable window frame, such that the screen is only seen or active when the window is slid open.
The window screen system engages with a conventional window frame. As shown in
In an example, the mesh screen 12 is coiled around a rod system (e.g., a central rod 20 and side rods 21, 22) connected to the permanent window frame, wherein the mesh screen extends from the rod system to the edges of the moveable window frame 16. As a result, when the window opens, the mesh screen 12 uncoils covering the gap created by the open window. When the moveable window frame is in a closed position, the majority of the mesh screen is coiled around the central and side rods.
The central rod 20 and side rods 21, 22 can include a spring-loaded coil mechanism that keeps the screen taut while the window is open and the mesh screen is extended to cover the gap. In addition, with a spring loaded coil mechanism, the mesh screen automatically rewinds itself around the coil when the user closes the window. Additional reinforcements may also be used to keep the screen taut for windows that open widely. When a user closes the window, and the screen is rewound onto the coil yet still attached to the movable window frame, such when the window is closed, the system provides a subtle appearance. For example, the coiling rods (e.g., 20, 21, 22) can include a retraction mechanism that can include a torsional spring and/or torsional shaft. Torsional springs are designed to resist forces in a rotational manner, as opposed to a linear motion. By pushing the window open, the mesh screen uncoils from the torsional shaft and the torsional spring creates a counter force in the opposition direction of the uncoiling to maintain the mesh screen taut between the coiling rod and the movable window frame. As a result of the taut configuration, the mesh screen does not flap in the wind when the window is open.
As shown in
Although the figures generally refer to examples wherein the mesh screen can coil and uncoil from a cylindrical rod, it should be understood than that the mesh screen can go from any compacted version when the window is closed to an expanded version when the window is open. In an example, the mesh screen can be folded in an accordion type fashion while the window is closed, and then expands and unfolds when the window is open.
In an example, as shown in
In an example, the central portion 24 extends from a bottom first corner of the window frame and to a bottom second corner of the window frame. The first side portion 26 can extend from a first bottom corner of the window frame to a first top corner of the window frame. Similarly, the second side portion 28 can extend from a second bottom corner of the window frame to a second top corner of the window frame.
Alternatively, in an example, the central portion 24 extends beyond the bottom first corner of the window frame and partially up the first side of the window, and extends beyond the bottom second corner of the window and up a portion of the second side of the window. The first side portion 26 and second side portion can connect to the ends of the central portion to the respective top corners of the window. As a result, the edges of the central portion 24 and side portions are not joined at the corner (e.g., perpendicular), and instead are joined in the same plane. Alternatively, the first side portion 26 and second side portion 28 can extend beyond the respective corners to attach to the central portion 24 (i.e., the central portion does not extend from the first bottom corner to the second bottom corner).
The central and side rods can be made of aluminum and a plastic insert can be included inside the rod that can have a hollow hexagonal channel. A spring is attached to the hexagonal end piece and provides torque in a direction opposite to the direction that the rod is rotated. The central rod can be housed in a bottom bearing housing wherein the bottom rod is inserted in a needle bearing. A needle bearing allows the rod to rotate freely with minimal friction and counteracts any radial forces on the rod. An edge of the central portion of the mesh screen can be adhered to the central rod, for example, via tape, glue, hook and loop adhesives, among other adhesives.
In an example, the first side rod 21 and second side rod 22 can be cylindrical or conical. If the side rods are conical, the diameter of the base of the conical rod, positioned at the respective bottom corner of the window frame, is greater than the diameter of the cross section of the top portion cylindrical rod, positioned at the respective top corners of the window frame. The conical side rods can allow the mesh screen to cover the triangular shape created when the hopper window is opened. In addition, the conical rod allows for the first side portion of the mesh screen and the second side portion of the mesh screen to be dispensed at a slower or different rate than that of the central portion of the mesh screen.
Alternatively, the side rods 21, 22 can include a bearing assembly and a spring anchoring the rod to the window housing. A needle bearing can be used to combat the bending forces on the rod while a thrust bearing can be used to combat the axial force of the mesh screen. The mesh screen can be attached at the top of the side rod through the use of a clamping or pinning mechanism around the mesh screen. In an example, the clamp and/or pin can be attached to the window housing with a spring. The bottom portion of the side rod can be allowed to rotate freely without interacting with the top of the side rod. The clamped connection at the top of the mesh screen allowed for minimal rotation during extension and retraction of the side portions of the mesh screen. As such the side portions of the mesh screen to be deposited rapidly near the bottom corner of the window frame without any or minimal movement of the side rode at the top corner. In an example, to minimize the bending of the clamp and/or pin when the clamp or pin is rotated when the window opens and the side portion of the mesh screen is extended, a rod and bearing assembly can be used to increase stability and reduce the friction and binding felt upon deploying the side portion of the mesh screen when the window opens. An edge of the side portions of the mesh screen can be adhered to the respective side rods, for example, via tape, glue, hook and loop adhesives, among other adhesives.
As shown in
In addition, as shown in
As shown in
Alternatively, or in addition to, a housing within the installed frame 18 can include a button, lever, or other locking mechanism activator that a user can access to activate the locking mechanism, wherein the locking mechanism activator is mechanically or electrically in communication with the locking mechanism of the window. As a result, the user can activate the locking mechanism originally installed in the window without retracting the mesh screen. For example, the user can activate or deactivate the locking mechanism by a lever (e.g., deactivation arm) that travels underneath the mesh screen, between the screen and the housing, thus, not interfering with the screen and increasing excess wear. Alternatively, or in addition to, the mesh screen can be one continuous piece and/or separated into various portions, yet the mesh screen can be flexible enough for a user to access the original locking mechanism in the window by pushing through the screen to access the locking mechanism.
The mesh screen 12 can include aluminum, nylon, polyester, fiberglass, nylon/spandex blend, or combinations thereof. Typically, a mesh screen comprised of aluminum does not have a fatigue limit, therefore, the repetitive rolling or folding of the screen mesh can induce a break in the material. A mesh screen comprising fiberglass is typically not resistant to UV rays, and may deteriorate after prolonged use. A mesh screen comprising nylon and/or polyester are less likely to fatigue and are much more resilient, thus, having a longer lifetime. A nylon screen mesh and a polyester screen mesh can provide elasticity to the screen mesh. A mesh screen comprising polyester can have a fairly high glass transition temperature, and can exhibit less than desirable properties in colder temperatures. A mesh screen comprising a vinyl-coated polyester has optimal fatigue properties, as well as functional over a wide variety of temperatures.
In an example, the mesh screen may be aluminum insect screens. In other embodiments, the screens may be porous, stretchy fabric with sufficient porosity to permit airflow, but pore sizes that are sufficiently small to exclude insects from entry into a building.
The edges of the mesh portions can include any suitable attachment means. For example, the edges can include a magnetic strip (or a series of magnetic strip pieces), tape, a series of magnets placed along the edges encased, hooks and loops, hooks and clasps, buttons, snaps, among others. The series of magnets along the edges can be placed within a fabric or two layers of the mesh screen. In an example, the magnets included neodymium magnets.
The magnets 50 along the edges of the portions of mesh screen can be manually coupled as or after the window is opened. Alternatively, the magnets 50 can automatically couple as the mesh portions are uncoiled and the window is opened. For example, as shown in
It should be understood that notwithstanding the majority of examples include the screen system in conjunction with a window, the present system can also be used for any number of applications including, but not limited to, any other type of window, door, entryway, aperture, or porthole. Further, although the majority of the figures refer to a window wherein the moving window frame opens out to the exterior, it should be understood that the system is applicable to windows that open to the interior of the unit.
It should be noted that various changes and modifications to the presently preferred embodiments described herein will be apparent to those skilled in the art. Such changes and modifications may be made without departing from the spirit and scope of the present invention and without diminishing its attendant advantages.
| Number | Date | Country | |
|---|---|---|---|
| 62311976 | Mar 2016 | US |
