US3667164A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Door sill
Assignee: Individual
•
Filing: 1969-06-19
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Granted: 1972-06-06
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Expires: 1989-06-19
Abstract
Abstract Door sill includes a substrate or base member of wood or other insulating material having a metal sill cover secured to the exterior projecting portion of the substrate and terminating adjacent the exterior side of the door when in the closed position, and having a rigid vinyl thermal barrier member connected to the substrate directly beneath the door when in the closed position as by means of downwardly projecting ribs which extend into grooves in the substrate. A sealing strip on the bottom of the door provides sealing contact with the rigid vinyl member when the door is in the closed position.
Inventors
- 👤 Cray J Coppins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:54
CPC Classifications
E; E06; E06B; E06B1/00; E06B1/70; E06B2001/707
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
213 words
A door sill comprising a base member of insulating material adapted to be secured to the threshold of a door frame, said base member including a threshold portion for disposition directly beneath the door supported in such frame when such door is in the closed position, and an exterior portion for extension outwardly beyond the door when closed, a sill cover of metal secured to said exterior portion of said base member, said sill cover terminating adjacent the exterior end of said threshold portion, and a rigid thermal barrier member of insulating material secured directly to said threshold portion to prevent a transfer of heat between said metal sill cover and thermal barrier member, said thermal barrier member including a substantially flat body portion having three ribs projecting downwardly therefrom for supporting said thermal barrier member on said base member, said threshold portion having three grooves therein for receipt of said ribs, said ribs having enlargements on the lower ends thereof received in said grooves, two of said grooves having one of their walls which are opposite each other of a reverse slope and their other walls vertical so that the wider part of said two grooves is at the bottom preventing direct upward movement of the associated ribs from said two grooves.
Claim 2
Dependent Claim
213 words
A door sill comprising a base member of insulating material adapted to be secured to the threshold of a door frame, said base member including a threshold portion for disposition directly beneath the door supported in such frame when such door is in the closed position, and an exterior portion for extension outwardly beyond the door when closed, a sill cover of metal secured to said exterior portion of said base member, said sill cover terminating adjacent the exterior end of said threshold portion, and a rigid thermal barrier member of insulating material secured directly to said threshold portion to prevent a transfer of heat between said metal sill cover and thermal barrier member, said thermal barrier member including a substantially flat body portion having three ribs projecting downwardly therefrom for supporting said thermal barrier member on said base member, said threshold portion having three grooves therein for receipt of said ribs, said ribs having enlargements on the lower ends thereof received in said grooves, two of said grooves having one of their walls which are opposite each other of a reverse slope and their other walls vertical so that the wider part of said two grooves is at the bottom preventing direct upward movement of the associated ribs from said two grooves.
Claim 3
Dependent Claim
15 words
The door sill of claim 1 wherein both walls of the third groove are vertical.
Claim 4
Dependent Claim
36 words
The door sill of claim 1 wherein said sill cover has an upwardly projecting rear end portion and the forward end of said body portion extends over said upwardly projecting rear end portion for support thereby.
Claim 5
Dependent Claim
30 words
The door sill of claim 3 wherein the forward end of said body portion has a down-turned lip forwardly of the upwardly projecting rear end portion of said sill cover.
Claim 6
Dependent Claim
23 words
The door sill of claim 1 wherein said thermal barrier is made of a rigid vinyl plastic and said sill cover is aluminum.
Claim 7
Dependent Claim
86 words
The door sill of claim 1 wherein said threshold portion is substantially flat and said exterior portion is tapered, said sill cover intermediate its ends having direct mating engagement with said exterior portion, the forward end of said sill cover being turned downwardly for engagement with the forward end of said exterior portion of said base member, and the rear end of said sill cover overlying the forward end of said threshold portion, said rear end of said sill cover projecting downwardly to provide support therefor.
Claim 8
Dependent Claim
102 words
The door sill of claim 1 wherein said threshold portion is substantially flat and said exterior portion is tapered, said sill cover intermediate its ends having direct mating engagement with said exterior portion, the forward end of said sill cover being turned downwardly for engagement with the forward end of said exterior portion of said base member, and the rear end of said sill cover projecting upwardly to provide support for the forward end of said thermal barrier member, said base member having a step between said exterior portion and threshold portion providing support for said rear end of said sill cover.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-06-06 | 1975-12-06 | 1976-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-06 | 1979-12-06 | 1980-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-06 | 1983-12-06 | 1984-06-06 | $7700.00 | Window Closed / Lapsed |