US3885351A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal door assembly
Assignee: Alumax Inc
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Filing: 1973-11-19
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Granted: 1975-05-27
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Expires: 1993-11-19
Abstract
Abstract A formed sheet metal rectangular-shaped frame is positioned between two sheet metal side panels which may be embossed to provide the appearance of small wood panels. The frame includes an elongated frame member for each edge of the door, and each frame member has two outwardly facing parallel spaced channel portions integrally connected by a center web portion. Extruded plastic trim members cover the top and side frame members and include longitudinally extending hook-shaped leg portions which project into the channel portions and snap-fit onto inwardly formed edge portions of the side panels. A foam insulation material is expanded between the side panels and also serves to space the side panels laterally from the frame to form a thermal barrier. The side trim members are interrupted or notched to receive the door hinges and a latch bolt housing which seat on the web portions of the corresponding frame members. A generally U-shaped elongated door seal is secured to the frame member which extends along the bottom of the door.
Inventors
- 👤 Raymond E Imperial
- 👤 Jr Edward G Schultz
- 👤 George Scott Hull
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:23
CPC Classifications
E; E06; E06B; E06B7/00; E06B7/16; E06B7/22; E06B7/23; E06B7/2316; E06B3/00; E06B3/70; E06B3/88
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
161 words
An improved metal door assembly comprising a rectangularshaped metal frame including longitudinally extending parallel metal frame members each having two longitudinally extending parallel spaced channel portions integrally connected by a web portion, said channel portions of each said longitudinal frame member defining two outwardly facing longitudinally extending cavities, each of said channel portions including an inwardly and laterally projected lip portion extending generally flush with said web portion, a set of generally parallel rectangular sheet metal side panels each having outer edge portions formed inwardly and projecting into said cavities for connecting said side panels to said frame, thermal insulation material disposed within said frame between said side panels, a set of elongated trim members extending adjacent said frame members and covering said cavities, and each of said trim members includes a set of longitudinally extending hook-shaped leg portions projecting into said cavities under the corresponding said lip portions for securing said trim members to said rame and said side panels.
Claim 2
Dependent Claim
161 words
An improved metal door assembly comprising a rectangularshaped metal frame including longitudinally extending parallel metal frame members each having two longitudinally extending parallel spaced channel portions integrally connected by a web portion, said channel portions of each said longitudinal frame member defining two outwardly facing longitudinally extending cavities, each of said channel portions including an inwardly and laterally projected lip portion extending generally flush with said web portion, a set of generally parallel rectangular sheet metal side panels each having outer edge portions formed inwardly and projecting into said cavities for connecting said side panels to said frame, thermal insulation material disposed within said frame between said side panels, a set of elongated trim members extending adjacent said frame members and covering said cavities, and each of said trim members includes a set of longitudinally extending hook-shaped leg portions projecting into said cavities under the corresponding said lip portions for securing said trim members to said rame and said side panels.
Claim 3
Dependent Claim
51 words
A metal door assembly as defined in claim 1 wherein said outer edge portions of said side panels project inwardly into the adjacent said cavities beyond the corresponding said lip portions, and said leg portions of each said trim member snap-fit outwardly under said outer edge portions of said side panels.
Claim 4
Dependent Claim
69 words
A metal door assembly as defined in claim 1 wherein at least one of said trim members is interrupted to define a space adjacent the corresponding frame member, a hinge assembly including a hinge plate extending into said space, means for securing said hinge plate to said channel portions of the adjacent said frame member, and said one trim member and said hinge plate have substantially the same thickness.
Claim 5
Dependent Claim
73 words
A metal door assembly as defined in claim 1 wherein said frame further includes an elongated bottom frame member having two parallel inverted U-shaped channel portions integrally connected by a web portion, a generally U-shaped elongated sealing member projecting into said channel portions and including a plurality of downwardly projecting and longitudinally extending flexible sealing lips, and means for adjusting thE vertical position of said sealing member relative to said bottom frame member.
Claim 6
Dependent Claim
28 words
A metal door assembly as defined in claim 4 wherein said sealing member includes inverted generally U-shaped portions projecting into said channel portions of said bottom frame member.
Claim 7
Dependent Claim
152 words
An improved metal door assembly comprising a rectangular-shaped metal frame including at least one elongated metal frame member having a plurality of longitudinally extending parallel spaced channel portions integrally connected by a web portion, said channel portions of said frame member defining corresponding outwardly facing longitudinally extending parallel spaced cavities, a set of generally parallel rectangular sheet metal side panels each have outer edge portions formed inwardly and projecting into corresponding said cavities for connecting said side panels to said frame member, said web portion of said frame member extending generally flush with said outer edge portions of said side panels, thermal insulation material disposed within said frame between said side panels, an elongated trim member extending adjacent said web portion of said frame member and covering said cavities, said trim member including portions projecting into said cavities, and means for securing said portions of said trim member to said frame member.
Claim 8
Dependent Claim
152 words
An improved metal door assembly comprising a rectangular-shaped metal frame including at least one elongated metal frame member having a plurality of longitudinally extending parallel spaced channel portions integrally connected by a web portion, said channel portions of said frame member defining corresponding outwardly facing longitudinally extending parallel spaced cavities, a set of generally parallel rectangular sheet metal side panels each have outer edge portions formed inwardly and projecting into corresponding said cavities for connecting said side panels to said frame member, said web portion of said frame member extending generally flush with said outer edge portions of said side panels, thermal insulation material disposed within said frame between said side panels, an elongated trim member extending adjacent said web portion of said frame member and covering said cavities, said trim member including portions projecting into said cavities, and means for securing said portions of said trim member to said frame member.
Claim 9
Dependent Claim
137 words
An improved metal door assembly comprising a rectangular-shaped metal frame including longitudinally extending parallel metal frame members defining outwardly facing longitudinally extending cavities, each of said frame members including a set of inwardly and laterally projecting lip portions disposed in opposing relation, a set of generally parallel rectangular sheet metal side panels each having outer edge portions formed inwardly and projecting into said cavities adjacent said lip portions of said frame members for connecting said side panels to said frame, thermal insulation material disposed within said frame between said side panels, a set of elongated trim members extending adjacent said frame members and covering said cavities, said trim members including portions projecting into said cavities, and means on said portions of said trim members for securing said trim members to said edge portions of said side panels.
Claim 10
Dependent Claim
137 words
An improved metal door assembly comprising a rectangular-shaped metal frame including longitudinally extending parallel metal frame members defining outwardly facing longitudinally extending cavities, each of said frame members including a set of inwardly and laterally projecting lip portions disposed in opposing relation, a set of generally parallel rectangular sheet metal side panels each having outer edge portions formed inwardly and projecting into said cavities adjacent said lip portions of said frame members for connecting said side panels to said frame, thermal insulation material disposed within said frame between said side panels, a set of elongated trim members extending adjacent said frame members and covering said cavities, said trim members including portions projecting into said cavities, and means on said portions of said trim members for securing said trim members to said edge portions of said side panels.
Claim 11
Dependent Claim
55 words
A metal door assembly as defined in claim 7 wherein at least one of said side panels cooperates with at least one of said frame members to define a narrow space therebetween, and said insulation material extends into said narrow space to provide a thermal barrier between said one side panel and said frame member.
Claim 12
Dependent Claim
66 words
A metal door assembly as defined in claim 7 wherein at least one of said trim members includes a substantially flat semi-rigid outer wall portion integrally connecting generally parallel spaced and longitudinally extending leg portions, and each of said leg portions includes a longitudinally extending and laterally outwardly projecting hook portion positioned to snap-fit into engagement with said edge portion of the adjacent said side panel.
Claim 13
Dependent Claim
43 words
A metal door assembly as defined in claim 7 wherein at least one of said side panels is spaced laterally of said frame to define a space therebetween, and said insulation material comprises a froth-type polymeric rigid foam material expanded into said space.
Claim 14
Dependent Claim
162 words
An improved metal door assembly comprising a rectangular-shaped metal frame including a set of longitudinally extending and a set of laterally extending metal frame members, each of said frame members including two longitudinally extending parallel spaced channel portions integrally connected by a web portion, said channel portions of each said frame member defining two longitudinally extending cavities, a set of generally parallel rectangular sheet metal side panels each having outer edge portions formed inwardly and projecting into said cavities of at least some of said frame members for connecting said side panels to said frame, thermal insulation material disposed within said frame between said side panels, a set of elongaTed trim members extending adjacent at least some of said frame members and covering the corresponding said cavities, and each of said trim members including a set of longitudinally extending hook-shaped leg portions projecting into said cavities of the corresponding said frame member under the corresponding said edge portions of said side panels.
Claim 15
Dependent Claim
162 words
An improved metal door assembly comprising a rectangular-shaped metal frame including a set of longitudinally extending and a set of laterally extending metal frame members, each of said frame members including two longitudinally extending parallel spaced channel portions integrally connected by a web portion, said channel portions of each said frame member defining two longitudinally extending cavities, a set of generally parallel rectangular sheet metal side panels each having outer edge portions formed inwardly and projecting into said cavities of at least some of said frame members for connecting said side panels to said frame, thermal insulation material disposed within said frame between said side panels, a set of elongaTed trim members extending adjacent at least some of said frame members and covering the corresponding said cavities, and each of said trim members including a set of longitudinally extending hook-shaped leg portions projecting into said cavities of the corresponding said frame member under the corresponding said edge portions of said side panels.
Claim 16
Dependent Claim
54 words
A metal door assembly as defined in claim 11 wherein at least one of said side panels cooperates with at least one said frame members to define a narrow space therebetween, and said insulation material extends into said narrow space to provide a thermal barrier between said one side panel and said frame member.
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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) | 1978-05-26 | 1978-11-25 | 1979-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-26 | 1982-11-25 | 1983-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-26 | 1986-11-25 | 1987-05-27 | $7700.00 | Window Closed / Lapsed |