Patent US3750333A successfully refreshed from Google Patents.
US3750333A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Insulated prime door
Assignee: 378455 ONTARIO Ltd A CORP
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Filing: 1972-02-28
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Granted: 1973-08-07
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Expires: 1992-02-28
Abstract
Abstract A metal faced door with a foam filled core. An extruded plastic casing member extends around the entire periphery of the door to join the metal facing panels. Direct contact between the inner and outer panels is avoided. The plastic extrusion also carries screw retaining plates usually around the entire periphery of the door.
Inventors
- 👤 W Vance
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:17
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/70; E06B3/82; E06B3/827; E06B3/88; E06B7/00; E06B7/16; E06B7/22; E06B3/7015; E06B2003/7023; E06B2003/7059; E06B2003/7074; E06B2003/7076
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
136 words
A door, comprising: an outer metal facing panel the edge portions of which are of a Z-shaped configuration having a first portion extending at an acute angle to the plane of the panel and a second portion extending from the edge of the first portion and substantially parallel to the plane of the panel; an inner metal facing panel the edge portions of which are of a Z-shaped configuration having a first portion extending at an acute angle to the plane of the panel and a second portion extending from the edge of the first portion and substantially parallel to the plane of the panel; and casing members extending along the edges of the door, the casing members having continuous channels on opposite sides thereof engaging the seconD portions of the outer and inner facing panels.
Claim 2
Dependent Claim
136 words
A door, comprising: an outer metal facing panel the edge portions of which are of a Z-shaped configuration having a first portion extending at an acute angle to the plane of the panel and a second portion extending from the edge of the first portion and substantially parallel to the plane of the panel; an inner metal facing panel the edge portions of which are of a Z-shaped configuration having a first portion extending at an acute angle to the plane of the panel and a second portion extending from the edge of the first portion and substantially parallel to the plane of the panel; and casing members extending along the edges of the door, the casing members having continuous channels on opposite sides thereof engaging the seconD portions of the outer and inner facing panels.
Claim 3
Dependent Claim
24 words
The door according to claim 1 wherein the casing members are plastic extrusions and are sprung into engagement with said door panel edge portions.
Claim 4
Dependent Claim
34 words
The door according to claim 1 wherein a metal plate is carried on a central web provided on each of the casing members for engaging hardware attaching means to secure same to the door.
Claim 5
Dependent Claim
41 words
The door according to claim 3 wherein the inner surface of the central web of the casing member is provided with a pair of flanges or ridges of L-shape in cross section to provide a channel for receiving the metal plate.
Claim 6
Dependent Claim
25 words
The door according to claim 1 wherein the space between the inner and outer facing panels is filled with foamed in place urethane foam material.
Claim 7
Dependent Claim
55 words
The door according to claim 1 wherein each casing member has a substantially flat central web extending parallel to the door edge and a pair of diverging webs extending from a center portion of the central web, each diverging web and the corresponding edge portion of the central web forming one of the continuous channels.
Claim 8
Dependent Claim
57 words
The door according to claim 6 further including a trim strip extending along the exposed edges of the door, the trim strip having a main portion spanning the distance between the outer and inner face panels and a projecting portion extending generally perpendicular to the main portion and engaging the casing member between the diverging webs thereof.
Claim 9
Dependent Claim
40 words
The door according to claim 6 wherein the door is attached to a door frame by hinges, the hinges being secured to the door by means of screws passing through one leaf of the hinge and through the casing member.
Claim 10
Dependent Claim
152 words
A door, comprising: an outer planar metal facing panel the edge portions of which are of substantially Z-shaped configuration having a first portion extending inwardly at an acute angle to the plane of the panel and a second portion extending laterally outwardly from the edge of the first portion and substantially parallel to the plane of the panel; an inner planar metal facing panel the edge portions of which are of substantially Z-shaped configuration having a first portion extending inwardly at an acute angle to the plane of the panel and a second portion extending laterally outwardly from the edge of the first portion and substantially parallel to the plane of the panel; and casing members extending along the edges of the door, the casing members having continuous means on opposite sides thereof engaging portions of the Z-shaped configurations of the outer and inner facing panels to be secured in place thereby.
Claim 11
Dependent Claim
152 words
A door, comprising: an outer planar metal facing panel the edge portions of which are of substantially Z-shaped configuration having a first portion extending inwardly at an acute angle to the plane of the panel and a second portion extending laterally outwardly from the edge of the first portion and substantially parallel to the plane of the panel; an inner planar metal facing panel the edge portions of which are of substantially Z-shaped configuration having a first portion extending inwardly at an acute angle to the plane of the panel and a second portion extending laterally outwardly from the edge of the first portion and substantially parallel to the plane of the panel; and casing members extending along the edges of the door, the casing members having continuous means on opposite sides thereof engaging portions of the Z-shaped configurations of the outer and inner facing panels to be secured in place thereby.
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) | 1976-08-06 | 1977-02-05 | 1977-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-06 | 1981-02-05 | 1981-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-06 | 1985-02-05 | 1985-08-07 | $7700.00 | Window Closed / Lapsed |