US3886688A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fire resistant door frame assembly
Assignee: RAGLAND Manufacturing AND CONSTRUCTION CO
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Filing: 1974-01-14
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Granted: 1975-06-03
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Expires: 1994-01-14
Abstract
Abstract A door frame assembly for mounting in a door opening in a wall comprising a generally horizontal header section extending across the top of the door opening and two generally vertical side sections extending down opposite sides of the door opening. At least one of the side sections has, at its upper end, means to accommodate the contiguous end portion of at least a part of said header section upon thermal longitudinal expansion of said pair of the header section.
Inventors
- 👤 Douglas Ragland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:59
CPC Classifications
E; E06; E06B; E06B1/00; E06B1/02; E06B1/04; E06B1/12; E06B5/00; E06B5/10; E06B5/16
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
206 words
A door frame assembly for mounting in a door opening in a wall comprising: a header section, said header section including a partition cap extending across the top of said door opening, said partition cap being generally channel shaped and having a web and a pair of limbs, said limbs extending downwardly toward said opening on opposite sides of said wall and having cap limb surfaces facing said door opening; and a fascia plate removably disposed in said partition cap between said limbs and having opposite first and second end portions and a lower surface disposed no lower than said cap limb surfaces and facing said door opening; means defining a first open space longitudinally adjacent said first end portion of said fascia plate; and vertically disposed first and second side sections on opposite sides of said door opening, said first side section having an upper end abutting said cap limb surfaces of said partition cap and contiguous but unattached to said first end portion of said fascia plate whereby said fascia plate can slide past said upper end of said first side section and a part of said first end portion can move into said first open space upon longitudinal expansion of said fascia plate.
Claim 2
Dependent Claim
206 words
A door frame assembly for mounting in a door opening in a wall comprising: a header section, said header section including a partition cap extending across the top of said door opening, said partition cap being generally channel shaped and having a web and a pair of limbs, said limbs extending downwardly toward said opening on opposite sides of said wall and having cap limb surfaces facing said door opening; and a fascia plate removably disposed in said partition cap between said limbs and having opposite first and second end portions and a lower surface disposed no lower than said cap limb surfaces and facing said door opening; means defining a first open space longitudinally adjacent said first end portion of said fascia plate; and vertically disposed first and second side sections on opposite sides of said door opening, said first side section having an upper end abutting said cap limb surfaces of said partition cap and contiguous but unattached to said first end portion of said fascia plate whereby said fascia plate can slide past said upper end of said first side section and a part of said first end portion can move into said first open space upon longitudinal expansion of said fascia plate.
Claim 3
Dependent Claim
206 words
A door frame assembly for mounting in a door opening in a wall comprising: a header section, said header section including a partition cap extending across the top of said door opening, said partition cap being generally channel shaped and having a web and a pair of limbs, said limbs extending downwardly toward said opening on opposite sides of said wall and having cap limb surfaces facing said door opening; and a fascia plate removably disposed in said partition cap between said limbs and having opposite first and second end portions and a lower surface disposed no lower than said cap limb surfaces and facing said door opening; means defining a first open space longitudinally adjacent said first end portion of said fascia plate; and vertically disposed first and second side sections on opposite sides of said door opening, said first side section having an upper end abutting said cap limb surfaces of said partition cap and contiguous but unattached to said first end portion of said fascia plate whereby said fascia plate can slide past said upper end of said first side section and a part of said first end portion can move into said first open space upon longitudinal expansion of said fascia plate.
Claim 4
Dependent Claim
206 words
A door frame assembly for mounting in a door opening in a wall comprising: a header section, said header section including a partition cap extending across the top of said door opening, said partition cap being generally channel shaped and having a web and a pair of limbs, said limbs extending downwardly toward said opening on opposite sides of said wall and having cap limb surfaces facing said door opening; and a fascia plate removably disposed in said partition cap between said limbs and having opposite first and second end portions and a lower surface disposed no lower than said cap limb surfaces and facing said door opening; means defining a first open space longitudinally adjacent said first end portion of said fascia plate; and vertically disposed first and second side sections on opposite sides of said door opening, said first side section having an upper end abutting said cap limb surfaces of said partition cap and contiguous but unattached to said first end portion of said fascia plate whereby said fascia plate can slide past said upper end of said first side section and a part of said first end portion can move into said first open space upon longitudinal expansion of said fascia plate.
Claim 5
Dependent Claim
94 words
A door frame assembly according to claim 1 further comprising means defining a second open space adjacent said second end portion of said fascia plate and wherein said second side section has an upper end abutting said cap limb surfaces of said partition cap and contiguous but unattached to said second end portion of said fascia plate whereby said fascia plate can slide past said upper end of said second side section and a part of said second end portion can move into said second open space upon longitudinal expansion of said fascia plate.
Claim 6
Dependent Claim
23 words
A door frame assembly according to claim 1 wherein said lower surface of said fascia plate is flush with said cap limb surfaces.
Claim 7
Dependent Claim
92 words
A door frame assembly according to claim 1 wherein said side section is attached to said partition cap by an L-shaped clip having a side leg lying along said first side section opposite said door opening and a top leg lying along said partition cap and disposed to extend away from said door opening, said side leg having a portion offset longitudinally outwardly with respect to said first end portion of said fascia plate and disposed to receive said part of said first end portion upon longitudinal expansion of said fascia plate.
Claim 8
Dependent Claim
34 words
A door frame assembly according to claim 1 wherein said fascia plate is secured to a support member lying above said fascia plate and extending for substantially the entire length of said fascia plate.
Claim 9
Dependent Claim
46 words
A door frame assembly according to claim 5 wherein said partition cap has a pair of flanges extending downwardly from said web portion between said limbs, said flanges defining a support channel therebetween, said support member attached to said fascia plate being disposed in said channel.
Claim 10
Dependent Claim
59 words
A door frame assembly according to claim 4 wherein said fascia plate includes a top doorstop extending downwardly from and longitudinally along said lower surface between said side sections, and wherein said first side section has a portion aligned with said top doorstop defining an opening for receipt of said top doorstop upon longitudinal expansion of said header section.
Claim 11
Dependent Claim
63 words
A door frame assembly according to claim 7 wherein said doorstop has a channel extending along substantially its entire length and wherein there is a rigid, fire resistant insert removably disposed in said channel, said insert having rigid skirt extending downwardly from said doorstop and being spaced from said side sections by a distance sufficient to accommodate thermal longitudinal expansion of said insert.
Claim 12
Dependent Claim
16 words
A door frame assembly according to claim 8 wherein said insert is comprised of a metal.
Claim 13
Dependent Claim
187 words
A door frame assembly for mounting in a door opening in a wall comprising: a generally horizontal header section disposed across the top of said door opening and having opposite first and second end portions; generally vertical first and second side sections disposed on opposite sides of said door opening, said side sections each being generally channel shaped in cross section having an elongate web and a pair of limbs extending laterally from respective long edges of said web for embracing opposite sides of said wall adjacent said opening, said opposite end portions of said header section each having parts disposed between said first and second side sections and said parts of said first end portion lying contiguous the upper end of said first side section, said first side section being unattached to said first end portion of said header section, and the web of said first side section having a first relief opening aligned with said first end portion of said header section and disposed to receive said contiguous parts of said first end portion of said header section upon longitudinal expansion of said header section.
Claim 14
Dependent Claim
187 words
A door frame assembly for mounting in a door opening in a wall comprising: a generally horizontal header section disposed across the top of said door opening and having opposite first and second end portions; generally vertical first and second side sections disposed on opposite sides of said door opening, said side sections each being generally channel shaped in cross section having an elongate web and a pair of limbs extending laterally from respective long edges of said web for embracing opposite sides of said wall adjacent said opening, said opposite end portions of said header section each having parts disposed between said first and second side sections and said parts of said first end portion lying contiguous the upper end of said first side section, said first side section being unattached to said first end portion of said header section, and the web of said first side section having a first relief opening aligned with said first end portion of said header section and disposed to receive said contiguous parts of said first end portion of said header section upon longitudinal expansion of said header section.
Claim 15
Dependent Claim
72 words
A door frame assembly according to claim 10 wherein said parts of said second end portion lie contiguous the upper end of said second side section and said web of said second side section has a second relief opening aligned with said second end portion of said header section and disposed to receive said contiguous parts of said second end portion of said header section upon longitudinal expansion of Said header section.
Claim 16
Dependent Claim
57 words
A door frame assembly according to claim 10 wherein said limbs of said first side section have top portions extending upwardly beyond an upper edge of said web, said top portions having side limb edges facing said door opening, and wherein said upper edge of said web and said side limb edges define said first relief opening.
Claim 17
Dependent Claim
102 words
A door frame assembly according to claim 12 wherein said header section is generally channel shaped having an elongate web and a pair of limbs extending laterally from respective long edges of said web for embracing opposite sides of said wall adjacent said door opening, said header limbs having end edges at said first end portion, said end edges being in abuttment with said side limb edges, said end edges being outwardly bevelled, and said side limb edges being inwardly bevelled, whereby said header limbs can slide between said top portions of said side limbs upon longitudinal expansion of said header section.
Claim 18
Dependent Claim
86 words
A door frame assembly according to claim 13 wherein said web of said header section includes a tongue at said first end portion extending longitudinally outwardly beyond said header limbs and disposed above said upper edge of said web of said first side section between said top portions of said side limbs, said tongue, said top portions of said side limbs, and said upper edge of said web of said first side section comprising aligning means for aligning said header section with said first side section.
Claim 19
Dependent Claim
53 words
A door frame assembly according to claim 13 wherein said header section further comprises a doorstop extending downwardly from and longitudinally along said header web between said side sections, and wherein said web of said first side section has an opening for receipt of said doorstop upon longitudinal expansion of said header section.
Claim 20
Dependent Claim
66 words
A door frame assembly according to claim 15 wherein said top doorstop defines a channel extending along substantially its entire length and wherein there is a rigid, fire resistant insert removably disposed in said channel, said insert having a rigid skirt extending downwardly from said top doorstop and being spaced from said side sections by a distance sufficient to accommodate thermal longitudinal expansion of said insert.
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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) | 1978-06-02 | 1978-12-02 | 1979-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-02 | 1982-12-02 | 1983-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-02 | 1986-12-02 | 1987-06-03 | $7700.00 | Window Closed / Lapsed |