CA2416542C - Auditorium chair - Google Patents
Auditorium chair Download PDFInfo
- Publication number
- CA2416542C CA2416542C CA002416542A CA2416542A CA2416542C CA 2416542 C CA2416542 C CA 2416542C CA 002416542 A CA002416542 A CA 002416542A CA 2416542 A CA2416542 A CA 2416542A CA 2416542 C CA2416542 C CA 2416542C
- Authority
- CA
- Canada
- Prior art keywords
- seat
- bearing
- standards
- spherical
- chairs
- 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.)
- Expired - Fee Related
Links
- 238000009434 installation Methods 0.000 description 5
- 239000002184 metal Substances 0.000 description 2
- 239000007779 soft material Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C1/00—Chairs adapted for special purposes
- A47C1/12—Theatre, auditorium, or similar chairs
- A47C1/121—Theatre, auditorium, or similar chairs having tipping-up seats
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C1/00—Chairs adapted for special purposes
- A47C1/12—Theatre, auditorium, or similar chairs
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C7/00—Parts, details, or accessories of chairs or stools
- A47C7/56—Parts or details of tipping-up chairs, e.g. of theatre chairs
- A47C7/58—Hinges, e.g. for mounting chairs in a curved row
Landscapes
- Health & Medical Sciences (AREA)
- Dentistry (AREA)
- General Health & Medical Sciences (AREA)
- Pivots And Pivotal Connections (AREA)
- Sliding-Contact Bearings (AREA)
- Support Of The Bearing (AREA)
Abstract
A chair particularly useful for an auditorium utilizes spherical bearings (2 2) to mount the seat bottom (18) of the chair to uprights standards. The spherical bearing (22) includes a first race portion (20) integral with the bottom of the chair and a removable cap portion (24) that is secured to the chair bottom to hold the spherical bearing. An axle (28) extends through eac h standard to engage the bearings to support adjacent chairs. The axles are threaded to receive a nut to secure the axles to the standards.
Description
AUDITORIUM CHAIR
TECHNICAL FIELD
This invention relates to the art of chairs, particularly chairs installed in rows in auditoriums.
SUMMARY OF THE INVENTION
In accordance with the invention, a chair for use in an auditorium comprises side standards onto which are mounted a pivotal seat portion and a bracket for support of a back portion. Axles, or shafts, extend from each standard to engage a spherical bearing on the seat portion to pivotally support the seat portion on the standards. This arrangement allows the axles to be unaligned or non-parallel, which also means that the standards themselves do not have to be parallel to each other. Thus, adjacent standards may be arranged at an angle, for example, when the row of chairs is curved. As well, the standards need not be at identical vertical positions, variations of two inches or so being easily accommodated. When utilizing a row of chairs, adjacent chairs share a standard and an axle.
The spherical bearings may be any of several arrangements. One preferred arrangement is to provide a race as part of the bottom of the structural part of the seat portion that receives a spherical bearing member. That structural part may be plastic and the bearing race molded therein. An axle then extends from the standard into the bearing member. The race may be removable or an integral part of the seat portion and may be a single element or two or more parts. Preferably, part of the race is molded into the bottom of the seat and another part bolted to the bottom. Also, a short axle extends from the standard to the bearing, and a single axle element may extend through the standard to engage spherical bearings on adjacent seats on opposite sides of the standard.
Retaining clips are secured to the axles to retain the seat bottom in the desired location, which is generally centrally located between the standards.
The retaining clips may be of different sorts but a preferred clip is a coiled spring that normally assumes a condition where the helical coils grip the axle tightly in the normal position but which can be released from the axle by squeezing the ends of the spring to unwind the coils slightly. Other retaining clips that can be easily attached are known to those of skill in the art.
The axle shafts preferably have a threaded central portion whereby they can be attached to the standards by nuts that clamp the standard between them.
Clearly other techniques for securing the axle to a standard may be used.
The back portion of the chair is preferably mounted on a bracket that is pivotally mounted on a standard. The angular orientation of the bracket in a vertical plane may be adjusted with respect to the standard by aligning adjustment holes in the bracket with a mounting hole in the standard and securing the bracket to the standard through these holes by a bolt. Other securing arrangements, such as a detent mechanism or a frictional engagement, are contemplated.
One end of the pivotal seat portion is provided with a stop portion that engages the bottom of the back portion when the chair is in the use position such that the orientation of the use position of the chair is determined by the position of the back portion. Thus, adjustment of the orientation of the back portion automatically adjusts the orientation of the seat portion, and the bracket and seat are arranged so that a rearward tilt of the back portion automatically results in a more upward tilt of the seat portion and vice-versa. This simplifies adjustment of the orientation of the chairs.
A further feature of the invention is that the standards are cast metal and the top portions are recessed slightly. This allows a coating of soft material, such as a plastic to be coated on the top to provide a cap for added comfort of users.
Preferably, the coated is applied by dipping the standard in the material.
Thus there is provided a row of chairs comprising a plurality of chairs and a plurality of standards wherein each of the chairs comprises a seat portion and a back portion and adjacent chairs are separated by one of the standards. Each of the seat backs comprises brackets adjustably mounting the angular orientation of the seat backs to the standards to allow selective angular positioning of the back with respect to the standards. Each of the seats comprises a rear portion that engages a lower portion of the back when the seat pivots from a non-use position to a use position to prevent further rotation of the seat from the non-use position.
There is provided a single shaft extending through an opening in each respective one of the standards and extending outward from each side of the standard to form two separate axles for supporting each seat portion. There is also a spherical bearing race on each side of each seat portion and a spherical bearing having a hole for engaging a respective one of the axles. The spherical bearing is received in said spherical bearing race whereby the axles support the seat portion. A retaining clip engages each of the axles and maintains the spherical bearing on the axle.
TECHNICAL FIELD
This invention relates to the art of chairs, particularly chairs installed in rows in auditoriums.
SUMMARY OF THE INVENTION
In accordance with the invention, a chair for use in an auditorium comprises side standards onto which are mounted a pivotal seat portion and a bracket for support of a back portion. Axles, or shafts, extend from each standard to engage a spherical bearing on the seat portion to pivotally support the seat portion on the standards. This arrangement allows the axles to be unaligned or non-parallel, which also means that the standards themselves do not have to be parallel to each other. Thus, adjacent standards may be arranged at an angle, for example, when the row of chairs is curved. As well, the standards need not be at identical vertical positions, variations of two inches or so being easily accommodated. When utilizing a row of chairs, adjacent chairs share a standard and an axle.
The spherical bearings may be any of several arrangements. One preferred arrangement is to provide a race as part of the bottom of the structural part of the seat portion that receives a spherical bearing member. That structural part may be plastic and the bearing race molded therein. An axle then extends from the standard into the bearing member. The race may be removable or an integral part of the seat portion and may be a single element or two or more parts. Preferably, part of the race is molded into the bottom of the seat and another part bolted to the bottom. Also, a short axle extends from the standard to the bearing, and a single axle element may extend through the standard to engage spherical bearings on adjacent seats on opposite sides of the standard.
Retaining clips are secured to the axles to retain the seat bottom in the desired location, which is generally centrally located between the standards.
The retaining clips may be of different sorts but a preferred clip is a coiled spring that normally assumes a condition where the helical coils grip the axle tightly in the normal position but which can be released from the axle by squeezing the ends of the spring to unwind the coils slightly. Other retaining clips that can be easily attached are known to those of skill in the art.
The axle shafts preferably have a threaded central portion whereby they can be attached to the standards by nuts that clamp the standard between them.
Clearly other techniques for securing the axle to a standard may be used.
The back portion of the chair is preferably mounted on a bracket that is pivotally mounted on a standard. The angular orientation of the bracket in a vertical plane may be adjusted with respect to the standard by aligning adjustment holes in the bracket with a mounting hole in the standard and securing the bracket to the standard through these holes by a bolt. Other securing arrangements, such as a detent mechanism or a frictional engagement, are contemplated.
One end of the pivotal seat portion is provided with a stop portion that engages the bottom of the back portion when the chair is in the use position such that the orientation of the use position of the chair is determined by the position of the back portion. Thus, adjustment of the orientation of the back portion automatically adjusts the orientation of the seat portion, and the bracket and seat are arranged so that a rearward tilt of the back portion automatically results in a more upward tilt of the seat portion and vice-versa. This simplifies adjustment of the orientation of the chairs.
A further feature of the invention is that the standards are cast metal and the top portions are recessed slightly. This allows a coating of soft material, such as a plastic to be coated on the top to provide a cap for added comfort of users.
Preferably, the coated is applied by dipping the standard in the material.
Thus there is provided a row of chairs comprising a plurality of chairs and a plurality of standards wherein each of the chairs comprises a seat portion and a back portion and adjacent chairs are separated by one of the standards. Each of the seat backs comprises brackets adjustably mounting the angular orientation of the seat backs to the standards to allow selective angular positioning of the back with respect to the standards. Each of the seats comprises a rear portion that engages a lower portion of the back when the seat pivots from a non-use position to a use position to prevent further rotation of the seat from the non-use position.
There is provided a single shaft extending through an opening in each respective one of the standards and extending outward from each side of the standard to form two separate axles for supporting each seat portion. There is also a spherical bearing race on each side of each seat portion and a spherical bearing having a hole for engaging a respective one of the axles. The spherical bearing is received in said spherical bearing race whereby the axles support the seat portion. A retaining clip engages each of the axles and maintains the spherical bearing on the axle.
BRIEF DESCRIPTION OF THE DRAWINGS
Figure 1 is a side view of a chair in accordance with the invention.
Figure 2 is an assembly view of the bottom of the chair shown in figure 1.
Figure 2 A is a side view, partially in cross section of a second embodiment of the bearing of figure 2.
Figure 3 is an assembly view of a second embodiment of the bottom of the chair shown in figure 1.
Figure 4 is a front view showing a preferred installation of two chairs in accordance with the invention.
Figure 5 is partial vertical cross section of a preferred axle and seat installation.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
With reference to figure 1 of the drawings, a chair in accordance with the invention comprises a seat portion 2, a back portion 4, and side standards 6 onto which the seat and back portions are mounted.
The back portion is mounted on opposed brackets 8, which are generally vertical plates. The lower parts of the brackets 8 are mounted on the standard at 3a pivots 10 for pivotal movement in a vertical plane. The upper parts of the brackets are provided with a series of adjustment holes 12 that selectively align with a mounting hole on the standard to secure the bracket in a given orientation.
Thus, the angle of the back portion with respect to the horizontal can be adjusted by pivoting the bracket to align a selected hole 12 with the mounting hole in the standard. In the preferred embodiment, the bracket is secured in that position by passing a bolt through the holes in the bracket and into a threaded portion of the hole in the standard.
The lower part of the back portion extends rearward from the bracket 8 such that it moves in an arc as the angle of the bracket, and, hence, the angle of the back portion is adjusted. The seat portion 2 is pivotally mounted to the standards as well, and includes a rear portion 16 that engages the bottom portion 14 of the back portion when the chair is in the use position. Thus, the angle of the seat portion 2 in the use position is a function of the vertical position of the bottom portion 16 of the back portion 4. The vertical position of the bottom portion 14 of the back portion 4 is, in turn, determined by the angular orientation of the brackets 8. Thus, adjustment of the angular orientation of the back portion 4 automatically adjusts the angular orientation of the seat portion 2 when in use.
The structure is arranged such that tilting the back portion 4 away from the vertical causes the orientation of the seat portion 2 to tilt toward the vertical.
The rear portion 16 is preferably weighted to pivot the seat portion 2 vertical when not in use.
Figure 2 shows one construction of the seat portion 2. The seat portion 2 includes a bottom part 18 onto which is mounted two spherical bearing sets, each comprising a lower race or cradle 20 for a spherical bearing element 22. An upper race or cap 24 is secured onto the lower race 20 to hold the bearing element. The seat is supported on two shafts 26 that pass through or from opposed standards 6 to engage respective spherical bearings. Because the bearings are spherical, the shafts 26 need not be parallel or aligned.
Figure 2a illustrates a preferred embodiment of the bearing. The cap 24 has ears 25 that extend outward from the bearing race and receive screws 27 for securing the cap to the bottom 18 of the seat.
Figure 3 shows another embodiment wherein the bearing race and the bearing element are integrally molded, eliminating the separate cap 24.
The standards are preferably cast metal with the vertical and horizontal parts defining a boundary 28 that is recessed or stepped. This allows the tops to be dipped in a soft material to the thickness of the recess or step to provide the standards with an upholstery-like covering that is very durable and attractive, as well as a uniform-looking or smooth surface between the lower part of the standard and the top part.
Figure 4 shows a preferred installation in accordance with the invention, and figure 5 is an assembly view of the elements of the installation of figure 4. In accordance with this embodiment, the axles 26 comprise rods with centrally located threaded portions 30. The axle is installed in a standard by placing the axle through a hole 32 and by securing the axle to the standard by tightening nuts 34. Nuts 34 may both be removable, or one may be fixed to the axle. As well, the axle may have a fixed shoulder serving the function of the head of a bolt in place of one of the nuts 34. In that case each axle would have a single removable nut 34.
A spring retainer clip 36 is provided to retain a bearing 22 on the axle.
Preferably the retainer clip is a coiled spring that can be released by squeezing the ends to expand the coil to allow it to move onto the axle. When the coils are released, the clip is frictionally held to the axle.
Installation is preferably accomplished as follows. First the standards are installed. Then the seat backs 4 are installed to stabilize the standards. The axles 26 are then installed by bolting them into the standards. The seat cushions are installed onto the axles sliding the spherical bearings onto the axles and securing the caps to the seats. Generally, one starts at one end of a row and proceeds to the other end. After the seats are installed the bottom cushions are centered between the standards and the retainer clips are then installed to retain the cushions centered.
Modifications within the scope of the appended claims will be apparent to those of skill in the art.
Figure 1 is a side view of a chair in accordance with the invention.
Figure 2 is an assembly view of the bottom of the chair shown in figure 1.
Figure 2 A is a side view, partially in cross section of a second embodiment of the bearing of figure 2.
Figure 3 is an assembly view of a second embodiment of the bottom of the chair shown in figure 1.
Figure 4 is a front view showing a preferred installation of two chairs in accordance with the invention.
Figure 5 is partial vertical cross section of a preferred axle and seat installation.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
With reference to figure 1 of the drawings, a chair in accordance with the invention comprises a seat portion 2, a back portion 4, and side standards 6 onto which the seat and back portions are mounted.
The back portion is mounted on opposed brackets 8, which are generally vertical plates. The lower parts of the brackets 8 are mounted on the standard at 3a pivots 10 for pivotal movement in a vertical plane. The upper parts of the brackets are provided with a series of adjustment holes 12 that selectively align with a mounting hole on the standard to secure the bracket in a given orientation.
Thus, the angle of the back portion with respect to the horizontal can be adjusted by pivoting the bracket to align a selected hole 12 with the mounting hole in the standard. In the preferred embodiment, the bracket is secured in that position by passing a bolt through the holes in the bracket and into a threaded portion of the hole in the standard.
The lower part of the back portion extends rearward from the bracket 8 such that it moves in an arc as the angle of the bracket, and, hence, the angle of the back portion is adjusted. The seat portion 2 is pivotally mounted to the standards as well, and includes a rear portion 16 that engages the bottom portion 14 of the back portion when the chair is in the use position. Thus, the angle of the seat portion 2 in the use position is a function of the vertical position of the bottom portion 16 of the back portion 4. The vertical position of the bottom portion 14 of the back portion 4 is, in turn, determined by the angular orientation of the brackets 8. Thus, adjustment of the angular orientation of the back portion 4 automatically adjusts the angular orientation of the seat portion 2 when in use.
The structure is arranged such that tilting the back portion 4 away from the vertical causes the orientation of the seat portion 2 to tilt toward the vertical.
The rear portion 16 is preferably weighted to pivot the seat portion 2 vertical when not in use.
Figure 2 shows one construction of the seat portion 2. The seat portion 2 includes a bottom part 18 onto which is mounted two spherical bearing sets, each comprising a lower race or cradle 20 for a spherical bearing element 22. An upper race or cap 24 is secured onto the lower race 20 to hold the bearing element. The seat is supported on two shafts 26 that pass through or from opposed standards 6 to engage respective spherical bearings. Because the bearings are spherical, the shafts 26 need not be parallel or aligned.
Figure 2a illustrates a preferred embodiment of the bearing. The cap 24 has ears 25 that extend outward from the bearing race and receive screws 27 for securing the cap to the bottom 18 of the seat.
Figure 3 shows another embodiment wherein the bearing race and the bearing element are integrally molded, eliminating the separate cap 24.
The standards are preferably cast metal with the vertical and horizontal parts defining a boundary 28 that is recessed or stepped. This allows the tops to be dipped in a soft material to the thickness of the recess or step to provide the standards with an upholstery-like covering that is very durable and attractive, as well as a uniform-looking or smooth surface between the lower part of the standard and the top part.
Figure 4 shows a preferred installation in accordance with the invention, and figure 5 is an assembly view of the elements of the installation of figure 4. In accordance with this embodiment, the axles 26 comprise rods with centrally located threaded portions 30. The axle is installed in a standard by placing the axle through a hole 32 and by securing the axle to the standard by tightening nuts 34. Nuts 34 may both be removable, or one may be fixed to the axle. As well, the axle may have a fixed shoulder serving the function of the head of a bolt in place of one of the nuts 34. In that case each axle would have a single removable nut 34.
A spring retainer clip 36 is provided to retain a bearing 22 on the axle.
Preferably the retainer clip is a coiled spring that can be released by squeezing the ends to expand the coil to allow it to move onto the axle. When the coils are released, the clip is frictionally held to the axle.
Installation is preferably accomplished as follows. First the standards are installed. Then the seat backs 4 are installed to stabilize the standards. The axles 26 are then installed by bolting them into the standards. The seat cushions are installed onto the axles sliding the spherical bearings onto the axles and securing the caps to the seats. Generally, one starts at one end of a row and proceeds to the other end. After the seats are installed the bottom cushions are centered between the standards and the retainer clips are then installed to retain the cushions centered.
Modifications within the scope of the appended claims will be apparent to those of skill in the art.
Claims (5)
1. A row of chairs comprising:
a plurality of chairs and a plurality of standards wherein each of said chairs comprises a seat portion and a back portion and adjacent chairs are separated by one of said standards, each of said seat backs comprising brackets adjustably mounting the angular orientation of said seat backs to said standards to allow selective angular positioning of said back with respect to said standards, and each of said seats comprising a rear portion that engages a lower portion of said back when said seat pivots from a non-use position to a use position to prevent further rotation of said seat from said non-use position, a single shaft extending through an opening in each respective one of said standards and extending outward from each side of the standard to form two separate axles for supporting each said seat portion, a spherical bearing race on each side of each of said seat portions and a spherical bearing having a hole for engaging a respective one of said axles, said spherical bearing being received in said spherical bearing race whereby said axles support said seat portion, and a retaining clip engaging each of said axles and maintaining said spherical bearing on said axle.
a plurality of chairs and a plurality of standards wherein each of said chairs comprises a seat portion and a back portion and adjacent chairs are separated by one of said standards, each of said seat backs comprising brackets adjustably mounting the angular orientation of said seat backs to said standards to allow selective angular positioning of said back with respect to said standards, and each of said seats comprising a rear portion that engages a lower portion of said back when said seat pivots from a non-use position to a use position to prevent further rotation of said seat from said non-use position, a single shaft extending through an opening in each respective one of said standards and extending outward from each side of the standard to form two separate axles for supporting each said seat portion, a spherical bearing race on each side of each of said seat portions and a spherical bearing having a hole for engaging a respective one of said axles, said spherical bearing being received in said spherical bearing race whereby said axles support said seat portion, and a retaining clip engaging each of said axles and maintaining said spherical bearing on said axle.
2. A row of chairs according to claim 1 wherein each of said shafts comprises a threaded central portion and a nut that secures said shaft to a respective one of said standards.
3. A row of chairs according to claim 1 wherein said spherical bearing race comprises a bearing base and a separate bearing top, said bearing base forming a portion of a spherical race for said bearing and said bearing top forming a portion of said spherical race, said bearing base being received in said bearing top to form said spherical race.
4. A row of chairs according to claim 3 wherein said seat includes a bottom surface and said bearing top secures said bearing base to said bottom surface so that the forces applied to said seat are applied directly to said bearing base through said bottom surface.
5. A row of chairs according to claim 1 wherein each seat portion further comprises a counterweight that tends to pivot said seat bottom to said non-use position.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US21964000P | 2000-07-21 | 2000-07-21 | |
| US60/219,640 | 2000-07-21 | ||
| PCT/US2001/023135 WO2002007565A2 (en) | 2000-07-21 | 2001-07-23 | Auditorium chair |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2416542A1 CA2416542A1 (en) | 2002-01-31 |
| CA2416542C true CA2416542C (en) | 2010-02-02 |
Family
ID=22820113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002416542A Expired - Fee Related CA2416542C (en) | 2000-07-21 | 2001-07-23 | Auditorium chair |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20030205923A1 (en) |
| CA (1) | CA2416542C (en) |
| MX (1) | MXPA03000567A (en) |
| WO (1) | WO2002007565A2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6755468B1 (en) * | 2003-05-09 | 2004-06-29 | Oasyschair Co., Ltd. | Folding chair |
| US8540315B2 (en) * | 2010-01-21 | 2013-09-24 | Pro-Cord S.P.A. | Nestable chair with seat rotation and stop arrangement |
| KR101921652B1 (en) * | 2016-11-18 | 2018-11-26 | 혜성산업(주) | Chair seat bracket with chair installation angle compatibility |
| GB2572149A (en) * | 2018-03-19 | 2019-09-25 | Zoeftig Group Ltd | A furniture system |
Family Cites Families (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US123131A (en) * | 1872-01-30 | Improvement in chairs | ||
| US326571A (en) * | 1885-09-22 | Church-pew | ||
| US381348A (en) * | 1888-04-17 | eaton | ||
| US631369A (en) * | 1898-07-05 | 1899-08-22 | Calvin H Hill | Pivot or hinge joint. |
| US1796731A (en) * | 1926-11-10 | 1931-03-17 | Stokes & Smith Co | Method of and apparatus for forming boxes and the like |
| US1948200A (en) * | 1931-09-04 | 1934-02-20 | Irl R Bromagem | Chair |
| US2000172A (en) * | 1933-10-23 | 1935-05-07 | American Seating Co | Hinge |
| US2070387A (en) * | 1935-02-18 | 1937-02-09 | Milford T Vandervoort | Theater seat |
| US2226861A (en) * | 1939-11-29 | 1940-12-31 | American Seating Co | Chair |
| US2290556A (en) * | 1939-12-06 | 1942-07-21 | Merrill W Hard | Theater chair |
| US2336128A (en) * | 1940-09-25 | 1943-12-07 | Peabody Company | Chair |
| US2621709A (en) * | 1947-01-31 | 1952-12-16 | Gaumont Kalee Seating Ltd | Adjustable theater chair |
| US2582599A (en) * | 1947-08-06 | 1952-01-15 | American Seating Co | Seat mounting for theater chairs or the like |
| US2827340A (en) * | 1956-03-08 | 1958-03-18 | Paramount Oilless Bearing Comp | Bearing |
| US3098677A (en) * | 1961-09-15 | 1963-07-23 | American Desk Mfg Company | Chair seat or the like hinge |
| US3572826A (en) * | 1968-07-05 | 1971-03-30 | American Desk Mfg Co | Push back seat chair |
| US3584916A (en) * | 1968-11-12 | 1971-06-15 | Sydney C Selden | Radius pew modules |
| US3813149A (en) * | 1971-12-23 | 1974-05-28 | Lawrence Brothers | Pivotal mounting device for stadium seats and the like |
| US5393120A (en) * | 1992-10-13 | 1995-02-28 | Krueger International, Inc. | Auditorium seating system |
| US5899531A (en) * | 1996-08-20 | 1999-05-04 | Krueger International, Inc. | Stationarily-mounted seating structure |
-
2001
- 2001-07-23 CA CA002416542A patent/CA2416542C/en not_active Expired - Fee Related
- 2001-07-23 WO PCT/US2001/023135 patent/WO2002007565A2/en active Application Filing
- 2001-07-23 MX MXPA03000567A patent/MXPA03000567A/en not_active Application Discontinuation
-
2003
- 2003-01-21 US US10/347,362 patent/US20030205923A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| MXPA03000567A (en) | 2011-08-15 |
| CA2416542A1 (en) | 2002-01-31 |
| WO2002007565A2 (en) | 2002-01-31 |
| US20030205923A1 (en) | 2003-11-06 |
| WO2002007565A3 (en) | 2002-05-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20180723 |