US4144683A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bracket assembly
Assignee: SPIRAL CRAFT
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Filing: 1977-07-05
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Granted: 1979-03-20
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Expires: 1997-07-05
Abstract
Abstract In one preferred embodiment a two-part bracket assembly is provided for securing a downwardly sloping stringer to the upper of two building levels. Preferably, each part of the bracket is formed from a sheet of metal. One part of the bracket comprises a vertical flange which abuts against and is secured to the frame of the upper building level. A side panel of the bracket part lies in the vertical plane perpendicular to the plane of the flange and abuts against the side of the stringer. A flat support flange extends perpendicularly away from the lower edge of the side panel and extends underneath and abuts against the lower surface of the stringer. The plane of the support flange is angled downwardly relative to the vertical flange so that with the lower surface of the stringer abutting against the support flange, the stringer slopes downwardly from the upper building level. The second part of the bracket assembly is substantially a mirror image of the first part and is disposed on the opposite side of the stringer. Fasteners secure the vertical flange of the bracket assembly to the frame of the upper building level while like fasteners secure the side panel and support flange to the stringer. In a second preferred embodiment only the first part of the bracket is used to secure the stringer to the vertical face of a support member.
Inventors
- 👤 Robert O. Dean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:35
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/18; E04B1/26; E04B1/2604; E04B1/2612; E04B1/2608
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
190 words
A two-part bracket assembly adapted for securing a stringer for a stairway construction to the upper of two building levels so that said stringer slopes downwardly from the upper to the lower building level at a predetermined angle comprising: a vertical flange on each of said parts disposed substantially in a vertical plane and abutting said upper building level, a side panel on each of said parts disposed substantially in a vertical plane and substantially perpendicular to the plane of the vertical flange whereby one panel is disposed on each side of said stringer, a support flange extending perpendicularly outwardly from the lower depending edge of each of said side panels and underneath said stringer wherein the plane of said support flange intersects the plane of said vertical flange at said predetermined angle, and each support flange includes registering slots adapted to receive a fastener therethrough, means for securing said vertical flanges to said upper building level so that the lower surface of said stringer abuts against at least one of said support flanges, and each of said two parts is substantially the mirror image construction of the other part.
Claim 2
Dependent Claim
190 words
A two-part bracket assembly adapted for securing a stringer for a stairway construction to the upper of two building levels so that said stringer slopes downwardly from the upper to the lower building level at a predetermined angle comprising: a vertical flange on each of said parts disposed substantially in a vertical plane and abutting said upper building level, a side panel on each of said parts disposed substantially in a vertical plane and substantially perpendicular to the plane of the vertical flange whereby one panel is disposed on each side of said stringer, a support flange extending perpendicularly outwardly from the lower depending edge of each of said side panels and underneath said stringer wherein the plane of said support flange intersects the plane of said vertical flange at said predetermined angle, and each support flange includes registering slots adapted to receive a fastener therethrough, means for securing said vertical flanges to said upper building level so that the lower surface of said stringer abuts against at least one of said support flanges, and each of said two parts is substantially the mirror image construction of the other part.
Claim 3
Dependent Claim
18 words
The bracket assembly as defined in claim 1 wherein each part of said bracket assembly is integrally formed.
Claim 4
Dependent Claim
19 words
The bracket assembly as defined in claim 2 wherein each part of said bracket assembly is constructed of metal.
Claim 5
Dependent Claim
30 words
The bracket assembly as defined in claim 1 wherein said vertical flange and said support flange are on opposite lateral sides of said side panel for each of said parts.
Claim 6
Dependent Claim
19 words
The bracket assembly as defined in claim 1 and including means for securing said side panels to said stringer.
Claim 7
Dependent Claim
28 words
The bracket assembly as defined in claim 1 wherein one of said support flanges on one of said parts overlaps the other support flange on the other part.
Claim 8
Dependent Claim
249 words
A two-part bracket assembly comprising a first and a second bracket member and adapted for securing a pair of stringers for a stairway construction to the upper of two building levels so that said stringers slope downwardly from the upper to the lower building level at a predetermined angle comprising: a vertical flange on each of said bracket members disposed substantially in a vertical plane and abutting said upper building level, a side panel on each of said bracket members disposed substantially in a vertical plane and substantially perpendicular to the plane of the vertical flange whereby the panel of said first bracket member is disposed on a side of one of said stringers and the panel of said second bracket is disposed on a side of the other of said stringers, a support flange extending perpendicularly outwardly from the lower depending edge of each of said side panels and underneath said stringers wherein the plane of said support flange intersects the plane of said vertical flange at said predetermined angle, and each support flange includes registering slots adapted to receive a fastener therethrough, means for securing said vertical flanges to said upper building level so that the lower surface of one of said stringers abuts against the support flange of said first bracket and the lower surface of the other of said stringers abuts against the support flange of said second bracket, and each of said two parts is substantially the mirror image construction of the other part.
Claim 9
Dependent Claim
249 words
A two-part bracket assembly comprising a first and a second bracket member and adapted for securing a pair of stringers for a stairway construction to the upper of two building levels so that said stringers slope downwardly from the upper to the lower building level at a predetermined angle comprising: a vertical flange on each of said bracket members disposed substantially in a vertical plane and abutting said upper building level, a side panel on each of said bracket members disposed substantially in a vertical plane and substantially perpendicular to the plane of the vertical flange whereby the panel of said first bracket member is disposed on a side of one of said stringers and the panel of said second bracket is disposed on a side of the other of said stringers, a support flange extending perpendicularly outwardly from the lower depending edge of each of said side panels and underneath said stringers wherein the plane of said support flange intersects the plane of said vertical flange at said predetermined angle, and each support flange includes registering slots adapted to receive a fastener therethrough, means for securing said vertical flanges to said upper building level so that the lower surface of one of said stringers abuts against the support flange of said first bracket and the lower surface of the other of said stringers abuts against the support flange of said second bracket, and each of said two parts is substantially the mirror image construction of the other part.
Claim 10
Dependent Claim
19 words
The bracket assembly as defined in claim 7 wherein each bracket member of said bracket assembly is integrally formed.
Claim 11
Dependent Claim
16 words
The bracket assembly as defined in claim 8 wherein each bracket member is constructed of metal.
Claim 12
Dependent Claim
176 words
A bracket member for use in securing a stringer for a stairway construction to a vertical support surface on the upper of two building levels so that the stringer slopes downwardly from the upper to the lower building level at a predetermined obtuse angle, said bracket member comprising: a side panel disposed in a substantially vertical plane and having a vertically extending edge, a flange extending from said edge in a plane substantially normal to the plane of said side panel, said flange abutting said vertical support surface, said side panel having a lower edge extending at an obtuse angle with respect to said vertically extending edge, said last mentioned obtuse angle corresponding to said predetermined obtuse angle, a support flange extending perpendicularly outwardly from said lower edge of said side panel and underneath said stringer whereby the plane of said support flange intersects the plane of said first-mentioned flange at said predetermined obtuse angle; means for securing said first-mentioned flanges to said vertical support surface and means for securing said stringer to said support flange.
Claim 13
Dependent Claim
176 words
A bracket member for use in securing a stringer for a stairway construction to a vertical support surface on the upper of two building levels so that the stringer slopes downwardly from the upper to the lower building level at a predetermined obtuse angle, said bracket member comprising: a side panel disposed in a substantially vertical plane and having a vertically extending edge, a flange extending from said edge in a plane substantially normal to the plane of said side panel, said flange abutting said vertical support surface, said side panel having a lower edge extending at an obtuse angle with respect to said vertically extending edge, said last mentioned obtuse angle corresponding to said predetermined obtuse angle, a support flange extending perpendicularly outwardly from said lower edge of said side panel and underneath said stringer whereby the plane of said support flange intersects the plane of said first-mentioned flange at said predetermined obtuse angle; means for securing said first-mentioned flanges to said vertical support surface and means for securing said stringer to said support flange.
Claim 14
Dependent Claim
23 words
The invention as defined in claim 10 and including a second bracket member which is the mirror image of said first-mentioned bracket member.
Claim 15
Dependent Claim
163 words
A two-part bracket assembly adapted for securing a stringer for a stairway construction to the upper of two building levels so that said stringer slopes downwardly from the upper to the lower building level at a predetermined obtuse angle comprising: a vertical flange on each of said parts disposed substantially in a vertical plane and abutting said upper building level, a side panel on each of said parts disposed substantially in a vertical plane and substantially perpendicular to the plane of the vertical flange whereby one panel is disposed on each side of said stringer, a support flange extending perpendicularly outwardly from the lower depending edge of each of said side panels and underneath said stringer, the plane of said support flange intersecting the plane of said vertical flange at said predetermined obtuse angle, and means for securing said vertical flanges to said upper building level so that the lower surface of said stringer abuts against at least one of said support flanges.
Claim 16
Dependent Claim
163 words
A two-part bracket assembly adapted for securing a stringer for a stairway construction to the upper of two building levels so that said stringer slopes downwardly from the upper to the lower building level at a predetermined obtuse angle comprising: a vertical flange on each of said parts disposed substantially in a vertical plane and abutting said upper building level, a side panel on each of said parts disposed substantially in a vertical plane and substantially perpendicular to the plane of the vertical flange whereby one panel is disposed on each side of said stringer, a support flange extending perpendicularly outwardly from the lower depending edge of each of said side panels and underneath said stringer, the plane of said support flange intersecting the plane of said vertical flange at said predetermined obtuse angle, and means for securing said vertical flanges to said upper building level so that the lower surface of said stringer abuts against at least one of said support flanges.
Claim 17
Dependent Claim
20 words
The bracket assembly as defined in claim 12 wherein each part is substantially the mirror image of the other part.
Claim 18
Dependent Claim
24 words
The bracket assembly as defined in claim 12 and including registering slots in each of said support flanges adapted to receive a fastener therethrough.
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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) | 1982-03-19 | 1982-09-18 | 1983-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-03-19 | 1986-09-18 | 1987-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-03-19 | 1990-09-18 | 1991-03-20 | $7700.00 | Window Closed / Lapsed |