US3851420A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Door and threshhold weatherseal system
Assignee: Schlegel Manufacturing Co
•
Filing: 1973-01-26
•
Granted: 1974-12-03
•
Expires: 1993-01-26
Abstract
Abstract A weatherseal arrangement around a door cooperates with a threshhold under the door to drain away water blown against the door. Weatherseals along vertical edges of the door prevent water from passing inward and also conduct water downward to the threshhold which has an enclosed chamber under the door. The downward draining water is guided into a top opening of the chamber, preferably by pile material over the top opening, and a drain opening leads from the bottom of the chamber and empties onto the outside sill of the threshhold. The top opening of the chamber is about 1/2 inch or more above the drain opening so that wind pressure against the drain opening opposes a head of water within the chamber beneath the door.
Inventors
- 👤 P Tibbetts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 09:00
CPC Classifications
E; E06; E06B; E06B1/00; E06B1/70; E06B7/00; E06B7/14; E06B7/16; E06B7/22
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
200 words
A door and threshold weatherseal system having weatherseal means along a vertical edge of said door for conducting water downward along said edge of said door and comprising: a. said threshold being formed as a single piece extrusion having a sill sloping downward and outward from said door, the inner edge of said threshold extending above said sill to form a generally closed chamber formed above said sill and arranged under said door with the bottom of said chamber communicating with the top of said sill; b. means above said sill for closing the ends of said chamber adjacent the frame of said door; c. said chamber having a top opening on the opposite side of said end closing means from said frame; d. means for guiding water from the bottom of said edge weatherseal means into said top opening of said chamber; e. said chamber having a drain opening leading from the bottom of said chamber to empty onto said sill; and f. said top of said chamber being about 1/2 inch or more above the top of said drain opening so wind pressure against said drain opening opposes a head of water within said chamber beneath said door.
Claim 2
Dependent Claim
200 words
A door and threshold weatherseal system having weatherseal means along a vertical edge of said door for conducting water downward along said edge of said door and comprising: a. said threshold being formed as a single piece extrusion having a sill sloping downward and outward from said door, the inner edge of said threshold extending above said sill to form a generally closed chamber formed above said sill and arranged under said door with the bottom of said chamber communicating with the top of said sill; b. means above said sill for closing the ends of said chamber adjacent the frame of said door; c. said chamber having a top opening on the opposite side of said end closing means from said frame; d. means for guiding water from the bottom of said edge weatherseal means into said top opening of said chamber; e. said chamber having a drain opening leading from the bottom of said chamber to empty onto said sill; and f. said top of said chamber being about 1/2 inch or more above the top of said drain opening so wind pressure against said drain opening opposes a head of water within said chamber beneath said door.
Claim 3
Dependent Claim
26 words
The system of claim 1 including means for closing off the end regions of said chamber so no water enters the central region of said chamber.
Claim 4
Dependent Claim
28 words
The system of claim 2 wheRein said closure means is a box fitted into the end of said chamber and having an opening registered with said drain opening.
Claim 5
Dependent Claim
20 words
The system of claim 2 wherein closure means is a tube leading from said top opening to said drain opening.
Claim 6
Dependent Claim
155 words
A door and threshhold weatherseal system comprising: a. weatherseal means arranged along a vertical edge of said door to prevent water from passing inward past said edge of said door, said edge weatherseal means being shaped to conduct water downeard along said edge of said door; b. a sill sloping downward and outward from said bottom wall of said chamber; c. said chamber having top openings in said top wall arranged in the region of each end of said threshold to receive water draining downward along the edges of said door; d. said chamber having a drain opening leading through the outer one of said vertical walls from said bottom wall of said chamber to empty onto said sill; e. means above said sill for closing the ends of said chamber adjacent the frame of said door; and f. said top opening being about 1/2 inch or more above the top of said drain opening.
Claim 7
Dependent Claim
155 words
A door and threshhold weatherseal system comprising: a. weatherseal means arranged along a vertical edge of said door to prevent water from passing inward past said edge of said door, said edge weatherseal means being shaped to conduct water downeard along said edge of said door; b. a sill sloping downward and outward from said bottom wall of said chamber; c. said chamber having top openings in said top wall arranged in the region of each end of said threshold to receive water draining downward along the edges of said door; d. said chamber having a drain opening leading through the outer one of said vertical walls from said bottom wall of said chamber to empty onto said sill; e. means above said sill for closing the ends of said chamber adjacent the frame of said door; and f. said top opening being about 1/2 inch or more above the top of said drain opening.
Claim 8
Dependent Claim
34 words
The system of claim 5 wherein said top opening is a notch in the end of said chamber under said pile material so any upward drafts from said top opening enter said pile material.
Claim 9
Dependent Claim
40 words
The system of claim 6 wherein the bottom of said door has a weatherseal means comprising a pair of spaced apart seals engaging the top of said chamber on opposite sides of said top opening when said door is closed.
Claim 10
Dependent Claim
26 words
The system of claim 7 wherein said threshhold includes a sill sloping downward and outward from said chamber, and said drain opening leads under said sill.
Claim 11
Dependent Claim
44 words
The system of claim 7 wherein said threshhold includes a sill sloping downward and outward, said chamber extends under said sill, said drain opening is in the outer end of said sill, and a tube leads from said top opening to said drain opening.
Claim 12
Dependent Claim
26 words
The system of claim 7 wherein said threshhold includes a sill sloping downward and outward from said chamber, and said drain opening empties onto said sill.
Claim 13
Dependent Claim
39 words
The system of claim 10 wherein said weatherseal means comprises a leaf seal open toward the outside of said door and closed toward the inside of said door, and seal means engaging the outer face edge of said door.
Claim 14
Dependent Claim
53 words
The system of claim 11 wherein said threshhold is a single piece of extruded plastic with said chamber extending for the length of said threshhold under said door, and said weatherseal means is arranged along both vertical edges of said door and said pile material is arranged at each end of said chamber.
Claim 15
Dependent Claim
25 words
The system of claim 12 including means for closing off the ends of said chamber so no water enters the central region of said chamber.
Claim 16
Dependent Claim
160 words
A door threshold comprising: a. a single piece of extruded plastic material having a generally closed chamber formed of a bottom wall, a top wall, and a pair of vertical walls extending for the length of said threshold to underlie a door; b. said threshhold having a chamber under said door; c. said chamber having a top opening; d. means for guiding water from the bottom of said edge weatherseal means into said top opening of said chamber; e. said chamber having a drain opening leading from the bottom of said chamber to a region outside said door; f. said top of said chamber being about 1/2 inch or more above said drain opening so wind pressure against said drain opening opposes a head of water within said chamber beneath said door; and g. said water guiding means includes pile material arranged to engage said edge of said door between said top opening and said bottom of said weatherseal means.
Claim 17
Dependent Claim
160 words
A door threshold comprising: a. a single piece of extruded plastic material having a generally closed chamber formed of a bottom wall, a top wall, and a pair of vertical walls extending for the length of said threshold to underlie a door; b. said threshhold having a chamber under said door; c. said chamber having a top opening; d. means for guiding water from the bottom of said edge weatherseal means into said top opening of said chamber; e. said chamber having a drain opening leading from the bottom of said chamber to a region outside said door; f. said top of said chamber being about 1/2 inch or more above said drain opening so wind pressure against said drain opening opposes a head of water within said chamber beneath said door; and g. said water guiding means includes pile material arranged to engage said edge of said door between said top opening and said bottom of said weatherseal means.
Claim 18
Dependent Claim
19 words
The threshhold of claim 14 including screw receptacles formed as longitudinal openings open at the ends of said threshhold.
Claim 19
Dependent Claim
26 words
The threshhold of claim 14 including means for closing off the end regions of said chamber so no water enters the central region of said chamBer.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-12-02 | 1978-06-03 | 1978-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-02 | 1982-06-03 | 1982-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-02 | 1986-06-03 | 1986-12-03 | $7700.00 | Window Closed / Lapsed |