CA2461456A1 - Stringer and step support kit for stairways - Google Patents
Stringer and step support kit for stairways Download PDFInfo
- Publication number
- CA2461456A1 CA2461456A1 CA002461456A CA2461456A CA2461456A1 CA 2461456 A1 CA2461456 A1 CA 2461456A1 CA 002461456 A CA002461456 A CA 002461456A CA 2461456 A CA2461456 A CA 2461456A CA 2461456 A1 CA2461456 A1 CA 2461456A1
- Authority
- CA
- Canada
- Prior art keywords
- stairways
- stringer
- supports
- modules
- step support
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
- E04F11/02—Stairways; Layouts thereof
- E04F11/022—Stairways; Layouts thereof characterised by the supporting structure
- E04F11/035—Stairways consisting of a plurality of assembled modular parts without further support
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
- E04F11/02—Stairways; Layouts thereof
- E04F2011/0203—Miscellaneous features of stairways not otherwise provided for
- E04F2011/0205—Stairways characterised by the use of specific materials for the supporting structure of the treads
- E04F2011/0209—Stairways characterised by the use of specific materials for the supporting structure of the treads mainly of metal
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
- E04F11/02—Stairways; Layouts thereof
- E04F2011/0203—Miscellaneous features of stairways not otherwise provided for
- E04F2011/0205—Stairways characterised by the use of specific materials for the supporting structure of the treads
- E04F2011/0218—Stairways characterised by the use of specific materials for the supporting structure of the treads mainly of organic plastics with or without reinforcements or filling materials
Description
SxRTN'GER AI~p STEP SUPPORT KIT
Ft~R STAIRWAYS
BACKGROUND QF THE INVENTION
1>. Fzel.d of the Invention The prESeri~t invention rela~ees to stairways and, mare particularly, to modular stairways made of pre-faP~ricated components such as stringers, step supports, railings, etc., typically iri the form of a kit far assembly on site.
Descri~ tp ion of 'Che Friar Art Typically, staircases axe complete~.y produced on site with the various wood components being cut to sire as the staircase is progressively erected on site. Furthermore, the finishing of a staircase is often damaged during construction, namely the carpeting that covers the steps or the sQ~.id wood finishing thereof. ~t is virtuallx impossible to defer the installation of the finishing covering of the Steps of the staircase until the end of the construction thereby resulting in damages to this finishing during the f~.nal stages of the constxuction_ Also, it has beers proposed to completely assemble a sta~..~case in the factory such that a pre-assembled staircase is de.l~.vered to 'the constx>uct~.on site for direct and easy instaliatian thereat. Such a modular staircase is disclosed in the Canadian Application i~o. 2,149,981 naming Raymond Couture as inventor and la~.d-open fvr pu~slic inspection on November 29, 1995.
Furthermore, in Canadian Application No. x,275,988 aiso naming Raymond Couture as inventor arid laid-open far public inspection on December 30, 3999, a modular staircase is proposed that includes a permanent framing made of metallic str~.r~gers and _ 1 _ .... . ..... _~".H.~. z ,:.~. -:s, ~,~~., ~:... 4..,.>.M. ____.
vertically extending step supports that are secured along the stringers. Each step support includes upper and front flanges adapted to be secured respectively to a tread and to a riser of each step of the staircase. If the staircase has a partly exposed side, various decorative cr finishing wooden components, including treads, risers, false or decorative stringers, moldings, etc., are provided to cover any exposed structural metallic framework and particularly the stringers.
SUMMARY OF THE INVENTION
It rs therefore an aim of the present invention to provide a novel stairway made of individual components, e.g. in the form of a kit.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
The present invention will now be herein described w~Lh reference to the accompanying drawings, which show by way of illustration preferred embodiments thereof.
Generally, it is well known that stairways basically consist of two parallel stringers arid to which are mounted the steps thoxizontal) as well as, in most cases, risers (i.e. the vertical back section extending between two successive steps). Typically, wooden stringers have a see-saw upper profile defining suecess~ve vertical and hori?ontal edges for mounting thereto respectively the risers and the steps. In the construction of modular stairways, step supports generally offering the aforementioned horizontal and vertical edges are separate components from the stringers and are mounted, with bolts or by welding, to the stringers, the latter generally consisting of a metallic beam extending at the angle of the intended stairway. The step supports are generally separate from the stringers such that they can be adjustably mounted thereto in order to vary the height and/or depth of the staa.rway's steps.
In the present ~.nvent~on, there is provided a new module which doubles as both a stew support and part of a stringer, as seen in Draw~.ng Sheets Nos. I
to 3. Such a module M is illustrated in Figure 1 and it consists of five members (herein met.al7.ic and shaped) , than is upper and lower stringer t~Gembers 10 and 12 (that act as part of a stringer?, an upper step support 1~, and front and rear supports ~.6 and 18, respectively. Threaded shafts 20 are fixedly horiaontally mounted, typically by welding, to the lower half of the (rant support 15 such that they can be engaged in the openings 22 defined in the rear support 18 of an adjacent module M, as depicted at M' in Figure 2 ant! which. is disposed. in front anti partly below the modu7~e M. Nuts 24 are used to secure the modules M and 1~' together. The modules M and M' are ~dent~.ca~..
The openings 22 shown in Figure 1 are preferably vertically oblong in order tQ allow for vertical adjustment between the modules M anti M'.
xherefore, by juxtaposing and connecting a series of modules M, a combination stringer and step support ~.s provided as illustrated a.n Figures 2 and 3 (see assemblies A and B in Figure ~). The two distinct assembled series A and ~ of modules M can then be positioned parallelly tree Figure 3) before steps S are mounted to the Step supports 14 of the various modules M of the assemb~.ies A and ~, as well as possibly r~.sers (not shown) that would be mounted to the upper, i.e. visible, halves of the front supports 16.
In Drawing Sheet No. 8, there is shos~n a variant 100 of the module NJ of Drawing Sheets Nos. 1 to 3, this variant including a sliding connecxar 1D2 for joining together two adjacent modules 100 while allowing for height adjustment between both modules 100 (see the oblong openings in the connector 1025.
An adjustment screw 104 may be ~ravided such a height adjustment. Openings 106 are for receiving the lower ends of a railing's vertical supports.
In Drawing Sheet No. 5, such a novel railing is shown, wherein the vertical supports of the railing are identified by 108 and the handrail thereof is identified by 110. The supports 3.0$ can be made of stee3 with a wood (or other decorative material) covering 112 being possibl"r provided around each support 108. The supports 108 can also be made of decorative bronze (or other decorative material), whereby no covering 112 is then required. The handrail 110 can be made of wood, moulded plastic, metal. etc.
Drawing Sheet ~o. 6 illustrates a step 119 (e.g_ made of steel) mounted on the module 100, and a Covering 115 (e. g. made of wood, PvC, etc.) for this step 11~. The step 114 can be bolted, welded, etc. to the moaules 100. The step 114 can be not only structural but also decorative, e.g_ made of solsd T
wood (or other well-finished material) such that the covering 115 zs not required.
Drawing Sheet No. 7 shows innovative markings 1~.6 that are pro~sided i'or instance orr the sliding connector 102 to more easily provide the desired step height between the modules 100, the marl~ings 11.6 herein allowing to set step heights froth 7 to 8 inches.
In Arawing sheet No. 8, a novel curved adjustment anti stabilising bar 12th links adjacent vertical supports 108 by having its ends engaged to the upper ends of the supports 108. The stabilising bar 124 is secured to the handrail 1.10 wj.th a fastener 122 and. is hidden by hollowness defined an the anclerside of the handrail 110. This stabilisrng bar 120 provides rigidity to the vertical. supports 108 and universality as its flexibility allows the same hand rail 110 to be mounted to the vertical supports 108 for different angles o~E the hand ravel 110 resu2ting from various step heights that 'the stairways nay have.
Drawing Sheet No. 9 illustrates anotrier variant 200 of the module 1~ (that which doubles as both a step support and part o~ a s~.ringer) . Axawi.ns~
Sheet No. 10 shows a number of cross-sectional views (A to A) taken from the module 200 of prawing Sheet No. 9. I~xawing Sheet No. 10 also i3lustrates novel wedges that are used for curved stairways, with these wedges forzning the angles required depending on the degree of curvature of the stairway. Drawing Sheets Leas. 11 (side views) and 12 (plan view) illustrates such a curved stairway.
Drawing Sheets Nos. ~.3, ~.4r 16 atld. 1.7 illustrate four further variants 300, 400, 500 and 6D0 of the navel module M, which. are made of cast metal, typ~.call:y aluminum.
Drawzng Sheets Nos. l5, 18 and 1~
illustrate a novel ferrule 150 for attaching the stairway, ~..e. the uppermost and lowermost modules M
(or, 100, 200, 300, 900, 500, 6D0) , tc~ the upper and lower flo4rinqs.
I3rawing Sheet Na, 2D ~.llustrates novel hidden fasteners for trie steps and risers.
_ g _ ___.~."..,...,".",rm ,f~~-~yy~a:.T~3?a""....,~. .... _.»,_...... ., ........
Ft~R STAIRWAYS
BACKGROUND QF THE INVENTION
1>. Fzel.d of the Invention The prESeri~t invention rela~ees to stairways and, mare particularly, to modular stairways made of pre-faP~ricated components such as stringers, step supports, railings, etc., typically iri the form of a kit far assembly on site.
Descri~ tp ion of 'Che Friar Art Typically, staircases axe complete~.y produced on site with the various wood components being cut to sire as the staircase is progressively erected on site. Furthermore, the finishing of a staircase is often damaged during construction, namely the carpeting that covers the steps or the sQ~.id wood finishing thereof. ~t is virtuallx impossible to defer the installation of the finishing covering of the Steps of the staircase until the end of the construction thereby resulting in damages to this finishing during the f~.nal stages of the constxuction_ Also, it has beers proposed to completely assemble a sta~..~case in the factory such that a pre-assembled staircase is de.l~.vered to 'the constx>uct~.on site for direct and easy instaliatian thereat. Such a modular staircase is disclosed in the Canadian Application i~o. 2,149,981 naming Raymond Couture as inventor and la~.d-open fvr pu~slic inspection on November 29, 1995.
Furthermore, in Canadian Application No. x,275,988 aiso naming Raymond Couture as inventor arid laid-open far public inspection on December 30, 3999, a modular staircase is proposed that includes a permanent framing made of metallic str~.r~gers and _ 1 _ .... . ..... _~".H.~. z ,:.~. -:s, ~,~~., ~:... 4..,.>.M. ____.
vertically extending step supports that are secured along the stringers. Each step support includes upper and front flanges adapted to be secured respectively to a tread and to a riser of each step of the staircase. If the staircase has a partly exposed side, various decorative cr finishing wooden components, including treads, risers, false or decorative stringers, moldings, etc., are provided to cover any exposed structural metallic framework and particularly the stringers.
SUMMARY OF THE INVENTION
It rs therefore an aim of the present invention to provide a novel stairway made of individual components, e.g. in the form of a kit.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
The present invention will now be herein described w~Lh reference to the accompanying drawings, which show by way of illustration preferred embodiments thereof.
Generally, it is well known that stairways basically consist of two parallel stringers arid to which are mounted the steps thoxizontal) as well as, in most cases, risers (i.e. the vertical back section extending between two successive steps). Typically, wooden stringers have a see-saw upper profile defining suecess~ve vertical and hori?ontal edges for mounting thereto respectively the risers and the steps. In the construction of modular stairways, step supports generally offering the aforementioned horizontal and vertical edges are separate components from the stringers and are mounted, with bolts or by welding, to the stringers, the latter generally consisting of a metallic beam extending at the angle of the intended stairway. The step supports are generally separate from the stringers such that they can be adjustably mounted thereto in order to vary the height and/or depth of the staa.rway's steps.
In the present ~.nvent~on, there is provided a new module which doubles as both a stew support and part of a stringer, as seen in Draw~.ng Sheets Nos. I
to 3. Such a module M is illustrated in Figure 1 and it consists of five members (herein met.al7.ic and shaped) , than is upper and lower stringer t~Gembers 10 and 12 (that act as part of a stringer?, an upper step support 1~, and front and rear supports ~.6 and 18, respectively. Threaded shafts 20 are fixedly horiaontally mounted, typically by welding, to the lower half of the (rant support 15 such that they can be engaged in the openings 22 defined in the rear support 18 of an adjacent module M, as depicted at M' in Figure 2 ant! which. is disposed. in front anti partly below the modu7~e M. Nuts 24 are used to secure the modules M and 1~' together. The modules M and M' are ~dent~.ca~..
The openings 22 shown in Figure 1 are preferably vertically oblong in order tQ allow for vertical adjustment between the modules M anti M'.
xherefore, by juxtaposing and connecting a series of modules M, a combination stringer and step support ~.s provided as illustrated a.n Figures 2 and 3 (see assemblies A and B in Figure ~). The two distinct assembled series A and ~ of modules M can then be positioned parallelly tree Figure 3) before steps S are mounted to the Step supports 14 of the various modules M of the assemb~.ies A and ~, as well as possibly r~.sers (not shown) that would be mounted to the upper, i.e. visible, halves of the front supports 16.
In Drawing Sheet No. 8, there is shos~n a variant 100 of the module NJ of Drawing Sheets Nos. 1 to 3, this variant including a sliding connecxar 1D2 for joining together two adjacent modules 100 while allowing for height adjustment between both modules 100 (see the oblong openings in the connector 1025.
An adjustment screw 104 may be ~ravided such a height adjustment. Openings 106 are for receiving the lower ends of a railing's vertical supports.
In Drawing Sheet No. 5, such a novel railing is shown, wherein the vertical supports of the railing are identified by 108 and the handrail thereof is identified by 110. The supports 3.0$ can be made of stee3 with a wood (or other decorative material) covering 112 being possibl"r provided around each support 108. The supports 108 can also be made of decorative bronze (or other decorative material), whereby no covering 112 is then required. The handrail 110 can be made of wood, moulded plastic, metal. etc.
Drawing Sheet ~o. 6 illustrates a step 119 (e.g_ made of steel) mounted on the module 100, and a Covering 115 (e. g. made of wood, PvC, etc.) for this step 11~. The step 114 can be bolted, welded, etc. to the moaules 100. The step 114 can be not only structural but also decorative, e.g_ made of solsd T
wood (or other well-finished material) such that the covering 115 zs not required.
Drawing Sheet No. 7 shows innovative markings 1~.6 that are pro~sided i'or instance orr the sliding connector 102 to more easily provide the desired step height between the modules 100, the marl~ings 11.6 herein allowing to set step heights froth 7 to 8 inches.
In Arawing sheet No. 8, a novel curved adjustment anti stabilising bar 12th links adjacent vertical supports 108 by having its ends engaged to the upper ends of the supports 108. The stabilising bar 124 is secured to the handrail 1.10 wj.th a fastener 122 and. is hidden by hollowness defined an the anclerside of the handrail 110. This stabilisrng bar 120 provides rigidity to the vertical. supports 108 and universality as its flexibility allows the same hand rail 110 to be mounted to the vertical supports 108 for different angles o~E the hand ravel 110 resu2ting from various step heights that 'the stairways nay have.
Drawing Sheet No. 9 illustrates anotrier variant 200 of the module 1~ (that which doubles as both a step support and part o~ a s~.ringer) . Axawi.ns~
Sheet No. 10 shows a number of cross-sectional views (A to A) taken from the module 200 of prawing Sheet No. 9. I~xawing Sheet No. 10 also i3lustrates novel wedges that are used for curved stairways, with these wedges forzning the angles required depending on the degree of curvature of the stairway. Drawing Sheets Leas. 11 (side views) and 12 (plan view) illustrates such a curved stairway.
Drawing Sheets Nos. ~.3, ~.4r 16 atld. 1.7 illustrate four further variants 300, 400, 500 and 6D0 of the navel module M, which. are made of cast metal, typ~.call:y aluminum.
Drawzng Sheets Nos. l5, 18 and 1~
illustrate a novel ferrule 150 for attaching the stairway, ~..e. the uppermost and lowermost modules M
(or, 100, 200, 300, 900, 500, 6D0) , tc~ the upper and lower flo4rinqs.
I3rawing Sheet Na, 2D ~.llustrates novel hidden fasteners for trie steps and risers.
_ g _ ___.~."..,...,".",rm ,f~~-~yy~a:.T~3?a""....,~. .... _.»,_...... ., ........
Claims
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002461456A CA2461456A1 (en) | 2004-03-19 | 2004-03-19 | Stringer and step support kit for stairways |
| US10/593,472 US20080229686A1 (en) | 2004-03-19 | 2005-03-21 | Stringer and Step Support Kit for Stairways |
| CA002595709A CA2595709A1 (en) | 2004-03-19 | 2005-03-21 | Stringer and step support kit for stairways |
| PCT/CA2005/000420 WO2005090705A1 (en) | 2004-03-19 | 2005-03-21 | Stringer and step support kit for stairways |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002461456A CA2461456A1 (en) | 2004-03-19 | 2004-03-19 | Stringer and step support kit for stairways |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2461456A1 true CA2461456A1 (en) | 2005-09-19 |
Family
ID=34993749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002461456A Abandoned CA2461456A1 (en) | 2004-03-19 | 2004-03-19 | Stringer and step support kit for stairways |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US20080229686A1 (en) |
| CA (1) | CA2461456A1 (en) |
| WO (1) | WO2005090705A1 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2696124C (en) | 2007-08-10 | 2016-01-19 | Case-Modular Stair Systems Inc. | Modular stairway system and kit therefor |
| US8806817B2 (en) | 2010-07-15 | 2014-08-19 | Case-Modular Stair Systems Inc. | Structural stringer for stairways |
| US20120167494A1 (en) * | 2011-01-03 | 2012-07-05 | Latham Pool Products, Inc. | Modular staircase systems |
| DE102011015492A1 (en) * | 2011-03-29 | 2012-10-04 | Karl-Heinz Uhlenbusch | Stringer segment attached to staircase, has cheek surface which comprises front side having front edge and rear side having rear edge for mounting stairway step, so that front edge and rear edge form flange for further stringer segment |
| JP5986385B2 (en) * | 2012-01-13 | 2016-09-06 | 株式会社ウッドワン | Temporary combined stairs and construction method |
| US8707637B1 (en) * | 2013-01-29 | 2014-04-29 | Anthony Charles Nerad | Systems and methods for removable stair treads and risers |
| EP3848527A3 (en) * | 2019-11-21 | 2021-09-29 | raumvonwert GmbH | Staircase |
| GB2594035B (en) * | 2020-02-11 | 2024-04-10 | The Regent Engineering Co Walsall Ltd | Demountable stairs |
Family Cites Families (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2593683A (en) * | 1949-07-20 | 1952-04-22 | George W Lyons | Prefabricated stair |
| US2724466A (en) * | 1950-03-08 | 1955-11-22 | George C Phillips | Bracket for step and stair construction |
| US3099336A (en) * | 1960-11-14 | 1963-07-30 | Floyd L Hawkins | Prefabricated stair |
| US3196997A (en) * | 1961-10-19 | 1965-07-27 | Elmer M Hager | Step forming unit |
| US3195393A (en) * | 1962-04-26 | 1965-07-20 | Uozumi Iwao | Shaft with overlapping cotter pin receiving holes |
| CA1145526A (en) * | 1981-01-21 | 1983-05-03 | Leopold Lapointe | Self standing modular flight of stairs and related posts |
| US4527366A (en) * | 1981-12-21 | 1985-07-09 | Greene Welding And Hardware, Inc. | Curvilinear stairway constructions |
| IT1172714B (en) * | 1983-06-17 | 1987-06-18 | Mobirolo Spa | MODULAR ELEMENTS MODULAR LADDER |
| IT1201580B (en) * | 1986-10-16 | 1989-02-02 | Indexstudio Sas Di Molinazzi & | MODULAR SUPPORT FOR STAIRS |
| US4875315A (en) * | 1988-06-13 | 1989-10-24 | Champagne Venerand R | Frame for supporting stairs or the like |
| US5205093A (en) * | 1992-06-22 | 1993-04-27 | Schuette Gail D | Pre-manufactured step support |
| US5502933A (en) * | 1993-12-10 | 1996-04-02 | Skillern; Charles T. | Modular staircase system |
| FR2740802B1 (en) * | 1995-11-03 | 1998-03-20 | Mottez Sa | METHOD FOR MANUFACTURING A STRUCTURE OF STAIRCASE MARKET MODULES AND MARKET MODULES MANUFACTURED ACCORDING TO THIS METHOD |
| US5806254A (en) * | 1996-03-04 | 1998-09-15 | Bennett; Michael Hebden | Modular tread and riser unit |
| CA2178785C (en) * | 1996-06-11 | 1999-11-16 | Brent L. Wallace | Stair support assembly |
| DE19727043A1 (en) * | 1997-06-25 | 1999-02-04 | Zenkner Cosima | Stair component |
| US6088977A (en) * | 1997-10-31 | 2000-07-18 | Lawrence; Michael J. | Method and apparatus for making stairs |
| US5899032A (en) * | 1997-11-14 | 1999-05-04 | Buzby; Edward | Stair structure |
| US6230454B1 (en) * | 1999-01-14 | 2001-05-15 | Timothy D. Meagher | Universal modular tread and riser unit |
| US6397529B1 (en) * | 2000-02-09 | 2002-06-04 | Gilles Grenier | Adjustable modular staircase |
| US6634843B1 (en) * | 2001-06-07 | 2003-10-21 | Frp Corporation | Connector |
-
2004
- 2004-03-19 CA CA002461456A patent/CA2461456A1/en not_active Abandoned
-
2005
- 2005-03-21 US US10/593,472 patent/US20080229686A1/en not_active Abandoned
- 2005-03-21 WO PCT/CA2005/000420 patent/WO2005090705A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| WO2005090705A1 (en) | 2005-09-29 |
| US20080229686A1 (en) | 2008-09-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2363976C (en) | Guard rail system | |
| US6125598A (en) | Modular traditional staircase | |
| US7472482B2 (en) | Method of assembling a guard rail | |
| US6516574B1 (en) | Modular stairway system, method for erecting stairway and kit therefor | |
| CA2708592A1 (en) | Railing system | |
| CA2461456A1 (en) | Stringer and step support kit for stairways | |
| US20030093959A1 (en) | Components for modular stairway system | |
| WO1996014483A1 (en) | Adjustable sheet metal moulds for steel and precast concrete stairs | |
| KR101008261B1 (en) | Pve-fabricating type stairs | |
| US20120205604A1 (en) | Apparatus for Forming Temporary Guardrail on Stairs | |
| US4041662A (en) | Staircases | |
| US20120011786A1 (en) | Structural stringer for stairways | |
| AU2020254705A1 (en) | Step module for stairs | |
| AU2015200568A1 (en) | Stair Stringer | |
| US20170051510A1 (en) | Safety guard to a prevent children from climbing the exterior of a stair railing | |
| CA2939292A1 (en) | Safety guard to a prevent children from climbing the exterior of a stair railing | |
| KR100471179B1 (en) | Assembly type coping hand rail | |
| CA2595709A1 (en) | Stringer and step support kit for stairways | |
| CA1315068C (en) | Staircase stringer assembly | |
| AU719227B2 (en) | Improvements in steps | |
| US20020152713A1 (en) | Baluster | |
| CA2709775C (en) | Structural stringer for stairways | |
| WO2023070167A1 (en) | Modular staircase | |
| CA3048291A1 (en) | Modular staircase and method of constructing same | |
| JPS6235787Y2 (en) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |