Patent US3636660A successfully refreshed from Google Patents.
US3636660A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Internal vent for window sash
Assignee: Individual
•
Filing: 1970-03-09
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Granted: 1972-01-25
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Expires: 1990-03-09
Abstract
Abstract A window construction having an improved external drainage system. The window construction includes a lower sill having a closed weep chamber formed therein. Suitable passageways and openings extend from the upper surface of the inside sill plate to the weep chamber for permitting flow of water from the sill plate to the weep chamber. The sill also has a small drain opening extending through the forward wall of the weep chamber for permitting collected water to be externally drained. Water passing the window seals and collecting on the sill thus flows into the chamber and creates a pressure head at the drain opening sufficient to oppose high-outside air pressure, as due to wind effects, and thereby to prevent such wind from driving such sill water back into the building. The window construction, in the disclosed embodiment, also includes a stationary sash provided with an air passageway extending from the weep chamber to the interior of the building. The separate air path receives sudden ones of such increases in outside pressure, as due to wind gusts, entering into the weep chamber through the drainage opening and thereby minimizes the spouting of water from the sill openings, which would otherwise be caused by inflow of outside air, until a sufficient water pressure head is created within the weep chamber for opposing such pressure increases.
Inventors
- 👤 Gerald D Peterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:04
CPC Classifications
E; E06; E06B; E06B7/00; E06B7/14; E06B7/02; E06B7/10
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
273 words
In a window construction including a substantially rectangular frame having a sill, a header and a pair of jamb elements, a horizontally movable sash disposed within said frame, said sill including a substantially horizontal sill portion disposed below the sash and extending longitudinally of the frame between the jamb elements, said sill further having a downwardly extending flange fixedly secured to and extending longitudinally along the exterior edge of the horizontal sill portion, a sill plate extending along the upper surface of said sill beneath said movable sash and between said jamb elements, and drain means communicating between the sill plate and the exterior surface of the sill, said drain means comprising a substantially closed water collection chamber disposed below the horizontal portion of the sill, a drain opening extending through the downwardly extending flange of said sill and communicating with said chamber, and drainage passageway means providing communication between and drainage of water from the upper surface of the sill plate to said chamber, an elongated strip disposed between said sill and said sill plate for spacing said sill plate slightly vertically upwardly from the upper surface of said sill, a portion of said elongated strip being removed for defining an intermediate chamber between said sill and said sill plate, said sill plate having opening means extending therethrough for providing communication between the upper surface of said sill plate and said intermediate chamber, and said passageway means further including an intermediate flow passage extending between said intermediate chamber and said water collection chamber, said intermediate passage including an opening extending through said horizontal sill portion for communicating with said water collection chamber.
Claim 2
Dependent Claim
273 words
In a window construction including a substantially rectangular frame having a sill, a header and a pair of jamb elements, a horizontally movable sash disposed within said frame, said sill including a substantially horizontal sill portion disposed below the sash and extending longitudinally of the frame between the jamb elements, said sill further having a downwardly extending flange fixedly secured to and extending longitudinally along the exterior edge of the horizontal sill portion, a sill plate extending along the upper surface of said sill beneath said movable sash and between said jamb elements, and drain means communicating between the sill plate and the exterior surface of the sill, said drain means comprising a substantially closed water collection chamber disposed below the horizontal portion of the sill, a drain opening extending through the downwardly extending flange of said sill and communicating with said chamber, and drainage passageway means providing communication between and drainage of water from the upper surface of the sill plate to said chamber, an elongated strip disposed between said sill and said sill plate for spacing said sill plate slightly vertically upwardly from the upper surface of said sill, a portion of said elongated strip being removed for defining an intermediate chamber between said sill and said sill plate, said sill plate having opening means extending therethrough for providing communication between the upper surface of said sill plate and said intermediate chamber, and said passageway means further including an intermediate flow passage extending between said intermediate chamber and said water collection chamber, said intermediate passage including an opening extending through said horizontal sill portion for communicating with said water collection chamber.
Claim 3
Dependent Claim
79 words
The construction according to claim 1, including also a fixed sash having a substantially hollow, lower stationary frame element, in which the passageway means includes a slot extending through the wall of said lower frame element for providing communication between the intermediate chamber and the hollow interior of the lower frame element, and the hollow interior of the lower frame element communicating with said water collection chamber by means of said opening which extends through said horizontal sill portion.
Claim 4
Dependent Claim
64 words
The construction according to claim 2, further including a vent passageway extending internally through the window construction and communicating with the hollow interior of the lower frame member, and a vent opening extending through the interior wall of the window construction adjacent the upper side thereof for providing communication between the vent passageway and the atmosphere adjacent the interior side of the window construction.
Claim 5
Dependent Claim
27 words
The construction according to claim 1, further including separate air vent means providing communication between the interior side of the window construction and the water collection chamber.
Claim 6
Dependent Claim
95 words
The construction according to claim 4, in which the vent means includes vent passageway means extending internally of the window construction with one end of said vent passageway means being in communication with the water collection chamber and the other end of the vent passageway means being located adjacent the header, said vent means further including a small and inconspicuous vent opening extending through an interior wall of the window construction for providing communication between the atmospheric air adjacent the interior side of the window construction and the other end of the vent passageway means.
Claim 7
Dependent Claim
27 words
The construction according to claim 1, further including separate air vent means providing communication between the interior side of the window construction and the water collection chamber.
Claim 8
Dependent Claim
231 words
In a window construction including a substantially rectangular frame having a horizontally movable sash disposed therein, the frame having a sill, a header and a pair of jamb elements, said sill including a substantially horizontal sill portion disposed below the movable sash and extending longitudinally of the frame, said sill further having a downwardly extending flange extending longitudinally along the exterior edge thereof, and drain means communicating between the upper surface of the sill and the exterior surface of the extending sill flange, the improvement wherein said drain means includes a substantially closed water collection chamber disposed below the horizontal portion of the sill, a drain opening extending through the downwardly extending flange of said sill and communicating with said water collection chamber adjacent the lower portion thereof, first passageway means providing communication between the upper surface of said sill and said water collection chamber for permitting flow of water from the upper surface of said sill to said water collection chamber, and second passageway means separate from said first passageway means for providing communication between said water collection chamber and the atmosphere adjacent the interior side of the window construction, said second passageway means communicating with the atmosphere adjacent the interior side of the window at a point located above said upper surface of the sill for permitting flow of air between said water collection chamber and said interior atmosphere.
Claim 9
Dependent Claim
231 words
In a window construction including a substantially rectangular frame having a horizontally movable sash disposed therein, the frame having a sill, a header and a pair of jamb elements, said sill including a substantially horizontal sill portion disposed below the movable sash and extending longitudinally of the frame, said sill further having a downwardly extending flange extending longitudinally along the exterior edge thereof, and drain means communicating between the upper surface of the sill and the exterior surface of the extending sill flange, the improvement wherein said drain means includes a substantially closed water collection chamber disposed below the horizontal portion of the sill, a drain opening extending through the downwardly extending flange of said sill and communicating with said water collection chamber adjacent the lower portion thereof, first passageway means providing communication between the upper surface of said sill and said water collection chamber for permitting flow of water from the upper surface of said sill to said water collection chamber, and second passageway means separate from said first passageway means for providing communication between said water collection chamber and the atmosphere adjacent the interior side of the window construction, said second passageway means communicating with the atmosphere adjacent the interior side of the window at a point located above said upper surface of the sill for permitting flow of air between said water collection chamber and said interior atmosphere.
Claim 10
Dependent Claim
130 words
The construction according to claim 7, including also a fixed sash defined by substantially rectangular framing having stationary upper and lower rails interconnected by stationary side stiles, said upper and lower rails and at least one of said side stiles being substantially hollow, and said second passageway means including a vent opening extending through the interior wall of the upper rail for permitting the atmosphere adjacent the interior side of the window construction to communicate with the hollow interior of the upper rail, said second passageway means further including openings providing communication between the interior of said one side stile and the hollow interiors of the upper and lower rails, and at least a portion of the first passageway means being defined by the hollow interior of the lower rail.
Claim 11
Dependent Claim
47 words
The construction according to claim 7, in which the horizontal sill portion is disposed vertically above the water collection chamber drain opening by a distance sufficient to permit development of a water pressure head within the water collection chamber of at least approximately 0.550 inches of water.
Claim 12
Dependent Claim
30 words
The construction according to claim 7, in which the second passageway means includes a vent opening extending through an interior wall of the window construction near an upper side thereof.
Claim 13
Dependent Claim
26 words
The construction according to claim 7, in which the water collection chamber extends longitudinally of the flange for only a small fraction of the length thereof.
Claim 14
Dependent Claim
252 words
In a window construction including a substantially rectangular frame having a sill, a header and a pair of jamb elements, a horizontally movable sash disposed within said frame, said sill including a substantially horizontal sill portion disposed below the sash and extending longitudinally of the frame between the jamb elements, said sill further having a downwardly extending flange fixedly secured to and extending longitudinally along the exterior edge of the horizontal sill portion, and drain means communicating between the upper surface of the sill and the exterior surface of the sill flange, the improvement wherein said drain means includes wall means disposed rearwardlY of said flange and beneath said sill portion and coacting with said flange and said sill portion for defining a substantially closed water collection chamber which extends longitudinally of said flange for only a small fraction of the length thereof, said water collection chamber having a bottom wall disposed vertically below said horizontal sill portion by a substantial distance, a drain opening extending through said downwardly extending flange and communicating with said chamber adjacent the lowermost portion thereof, and drainage passageway means providing communication between and drainage of water from the upper surface of the sill to said chamber, said drainage passageway means including a flow opening communicating with said chamber substantially adjacent the upper portion thereof, said flow opening being vertically spaced a substantial distance above said drain opening to enable development of a water pressure head within said chamber of at least approximately 0.550 inch of water.
Claim 15
Dependent Claim
252 words
In a window construction including a substantially rectangular frame having a sill, a header and a pair of jamb elements, a horizontally movable sash disposed within said frame, said sill including a substantially horizontal sill portion disposed below the sash and extending longitudinally of the frame between the jamb elements, said sill further having a downwardly extending flange fixedly secured to and extending longitudinally along the exterior edge of the horizontal sill portion, and drain means communicating between the upper surface of the sill and the exterior surface of the sill flange, the improvement wherein said drain means includes wall means disposed rearwardlY of said flange and beneath said sill portion and coacting with said flange and said sill portion for defining a substantially closed water collection chamber which extends longitudinally of said flange for only a small fraction of the length thereof, said water collection chamber having a bottom wall disposed vertically below said horizontal sill portion by a substantial distance, a drain opening extending through said downwardly extending flange and communicating with said chamber adjacent the lowermost portion thereof, and drainage passageway means providing communication between and drainage of water from the upper surface of the sill to said chamber, said drainage passageway means including a flow opening communicating with said chamber substantially adjacent the upper portion thereof, said flow opening being vertically spaced a substantial distance above said drain opening to enable development of a water pressure head within said chamber of at least approximately 0.550 inch of water.
Claim 16
Dependent Claim
37 words
A construction according to claim 12, wherein said drain passageway means includes at least two flow openings communicating with said collection chamber adjacent the upper portion thereof, said flow openings extending vertically through said horizontal sill portion.
Claim 17
Dependent Claim
61 words
The construction according to claim 12, wherein said wall means in cooperation with said front flange and said horizontal sill portion define a substantially boxlike configuration having a hollow interior defining said small substantially closed chamber, said chamber having a substantially rectangular horizontal cross section and having a maximum length in the longitudinal direction of said sill of approximately 6 inches.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-01-24 | 1975-07-26 | 1976-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-24 | 1979-07-26 | 1980-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-24 | 1983-07-26 | 1984-01-25 | $7700.00 | Window Closed / Lapsed |