CA1091568A - Support structure, especially for supporting a vehicle chair, comprising an upright supporting post of telescopic structure - Google Patents
Support structure, especially for supporting a vehicle chair, comprising an upright supporting post of telescopic structureInfo
- Publication number
- CA1091568A CA1091568A CA272,999A CA272999A CA1091568A CA 1091568 A CA1091568 A CA 1091568A CA 272999 A CA272999 A CA 272999A CA 1091568 A CA1091568 A CA 1091568A
- Authority
- CA
- Canada
- Prior art keywords
- members
- telescopic
- tubular portion
- support structure
- slide block
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/50—Seat suspension devices
- B60N2/502—Seat suspension devices attached to the base of the seat
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C3/00—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats
- A47C3/20—Chairs or stools with vertically-adjustable seats
- A47C3/30—Chairs or stools with vertically-adjustable seats with vertically-acting fluid cylinder
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
- B60N2/242—Bus seats
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/50—Seat suspension devices
- B60N2/505—Adjustable suspension including height adjustment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/50—Seat suspension devices
- B60N2/509—Seat guided by slides or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/50—Seat suspension devices
- B60N2/52—Seat suspension devices using fluid means
- B60N2/525—Seat suspension devices using fluid means using gas
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Seats For Vehicles (AREA)
- Pivots And Pivotal Connections (AREA)
- Fluid-Damping Devices (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
A support structure for vehicle chairs is disclosed, comprising an upright supporting post of telescopic construction having two telescoping members which are axially displaceable but nonrotatable with respect to each other. Each telescopic, member comprises an inner tubular portion of comparatively small diameter and an outer tubular portion of comparatively large diameter. The inner tubular portions of the two telescopic members form cooperating bearing surfaces for holding said members in axial alignment with each other. The outer tubular portions of the two telescopic members are provided with interengaging means for preventing mutual rotation between said members.
A support structure for vehicle chairs is disclosed, comprising an upright supporting post of telescopic construction having two telescoping members which are axially displaceable but nonrotatable with respect to each other. Each telescopic, member comprises an inner tubular portion of comparatively small diameter and an outer tubular portion of comparatively large diameter. The inner tubular portions of the two telescopic members form cooperating bearing surfaces for holding said members in axial alignment with each other. The outer tubular portions of the two telescopic members are provided with interengaging means for preventing mutual rotation between said members.
Description
The present invention relates to a support structure, especially for supporting a vehicle chair, comprising an upright supporting post of tele~copic construction having two telescoping members which are axially displaceable but non-rotatable with respect to each other.
~-~ Support structures of the above type are frequently used for supporting vehicle chairs of various kinds, such as the driver's seat in an automobus.
An object of the present invention is to provide an improved support structure of said type having a very stable and reliable construction and a favourable function. For this purpose, the invention provides a support structure of the kind initially specified wherein each telescopic member comprises an inner tubular portion of comparatively small diameter and an outer tubular portion of comparatively large -~ diameter, the inner tubular portions of the two telescopic members forming cooperating bearing surfaces for holding sald members in axial alignment with each other, and the outer tubular portions of the two telescopic members being provided with interengaging means for preventing mutual rotation between said members.
By using a pair of inner tubular portions of - comparatively small diameter for forming the required bearing connectlon between the two telescopic members and a pair of .
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outer tubular portions of comparatively large diameter for establishing the nonrotatable connection between said me~ers it is possible both to minimize the Eriction between the t~o telescopic members and to ensure that the play in a circumferential direction between said members will become neglectable.
The interengaging means may preferably comprise a slide block mounted on the outer tubular portion of one of said telescopic members and a longitudinally extending guide groove provided in the outer tubular portion of the other telescopic member and receiving said slide block displaceably therein.
The guide groove may suitably be formed with opposite side walls converging in a direction towards the bottom of said groove, the slide block having correspondingly converging contact surfaces for sliding engagement with saidside walls.
. . .
In this case, means may be provided to permit an automatic or manual adjustment of the position of the slide block in a :
radial direction of the supporting post.
` 20 Below the invention will be described in further detail, reference being had to the accompanying drawings, in which:
Figure 1 shows a vertical section through a support structure accoxding to one embodiment of the invention, ~` selected by way of example;
; Figure 2 is a partial sectional view, showing on an enlarged scale, a section taken along line II-II in Figure l;
, ~ - 2 -. . .
c~
Figure 3 shuws a vertica1 section through the upper part oE said support structure as seen ~rom the left in Figure l; and Figure 4 is a partial sectional view, corresponding to Figure 2, but illustratiny an alternative embodiment.
The support structure shown in Figures 1 to 3 is primarily intended to be used for supporting a vehicle chair, such as the driver's seat in an automobus. However, it may also be used in instances where it is desirable to permit an easy adjustment of the vertical position and/or the angular position of a supported object.
- The support structure comprises a supporting post, gen-erally designated by reference numeral 10, and a turntable gen-erally des;`gned 11, which is mounted on said supporting post.
~-~ The supporting post is of telescopic construction . .-, and consists of two telescoping members which are axially dis-placeable but non-rotatable with ~espect to each other. One of said telescopic members is rigidly secured to a base plate 12 at its lower end, while the other telescopic member carries the turntable 11 at its upper end. The first mentioned tele-scopic member comprises an inner tubular portion 13 of comparatively small diameter and an outer tubular portion 14 of comparatively large diameter. Similarly, the other telescopic member comprises an inner tubular portion 15 and an outer tubular portion 16. As can be seen from Figures 1 and 3, the inner -tubular portion 15 of the other telescopic member is journalled for axial displacement on the inner tubular portion 13 of the first mentioned telescopic ,~
:~ :
'~ ~ 3 ~
. .
member. The outer tubuLar portions 14 and 16 of the two telescopic members serve to lock said members ayainst mutual rotation. For this purpose, tubular portion 14 is provided with a longitudinally extending depression 17 of generally V-shaped cross-section which forms a guide groove for a slide block 18 mounted on the inner side of tubular portion 16 near the upper end of said portion. The outer tubular portions 14 and 16 may preferably have a considerably smaller wall thickness than the inner tubular portions. As can be seen from Figure 2, slide block 18 has a V~shaped cross-section corresponding to the cross-sectional shape of guide groove 17. Slide block 18 is mounted for limited movement in a radial direction with respect to tubular portion 16 by means of a holder 19 fixed to .:
-- said tubular portion and having a radially extending web on . .
~ which the slide block 18 is displaceably carried and urged :..
~-~ towards the bottom of the guide groove 17 by means of a spring plate 20. Through the action of spxing plate 20 the slide block 18 will automatically be adjusted so as to ensure that the lateral contact surfaces of the slide block will be maintained in sliding engagement with the converging side walls of the guide groove 17. Tubular portions 13, 14, 15 and 16 may be made from any suitable metal, while slide block 18 may ~- consist of a plastics material, such as nylon or delrin.
- Figure 4 illustrates an alternative embodiment, wherein a longitudinally extending guide groove is provided ` by a depression 33 formed in the outer tubular portion 16 and a slide block 34 is mounted on the inner tubular portion 14.
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., ~ 4 -. .
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In this case, the slide block 3~1 is carried by the ou-ter portion of a bolt 35, the inner portion of which is threaded into a socket 36 fit-ted and secured in an openingin the wall of the inner tubular portion 14. Bolt 35 is provided with a projecting flange 35a serving -to maintain the lataral contact surfaces of slide block 34 in s]iding engagement with the opposite converging side walls of guide groove 33. A circular opening 37 is provided in the bottom wall of guide groove 33 to permit the insertion of a tool for manually adjusting the radial position of bolt 35 and slide block 34.
Reference numeral 21 designates a gas spring placed ~- within tubular portion 13 and connected between an anchor plate 22 secured to base plate 12 through tubular portion 13, and a mountin~ 23 provided at the upper end of tubular portion 14. At its upper end, gas spring 21 has an axially projecting pin 24 forming an operating member for valve means enclosed in the gas spring. Pin 24 may be manually operated by a lever 25 provided with a tubular bearing mem~er 26, by means of which lever 25 is pivotally mounted on a pin 27 carried by a bracket fixed to tubular portion 16. As can be seen from the drawings, lever 25 contacts pin 24 at its one end. At its opposite endt lever 25 is provided with a handle (not shown).
In the free space between tubular portions 14 - and 15 a shock absorber 28 is provided having its one ; end connected to a plate 29 which is firmly secured to base plate 12 and supports tubular portion 14. The other end of shock absorber 28 is connected to a plate 30 which is ~ '.''' .
: .
' ~
~: - '' ' ' , . .. .
.:'~ ,' ' : :
ricJidly secured to the upper axial:Ly movable telescopic member of supportin~ post 10. Plate 30 serves to support turntable 11, which comprises a lower pla-te 31 secured to plate 30, and an upper plate 32 which is rotatably mounted on the lower plate 31. The turntable 11 will not be described in detail, as it is of the general kind disclosed in British Patent No.
1,473,284.
The gas spring 21,which in known manner includes a mechanical spring, serves on the one hand to facilitate an easy adjustment of the vertical position of a chair mounted on turn-table 11 and, on the other hand, to permit a limited resilient mobility in an axial direction between the two telescopic mem-bers of post 10 for any adjusted relative position of said mem-bers. As soon as the valve means of the gas spring is actuated .
by means of lever 25, the gas spring tends to raise the turntable and the chair mounted thereon. In order to permit the chair to be ralsed, an occupant should ternporarily reduce the load on -the chair. If, instead, the chair is to be lowered, the . , - occupant shouLd load the chair sufficiently to overcorne the up-wardly directed spring force when the valve means of the gas spring is actuated. The shock absorber 28 serves to attenuate the movements of the chair when the chair is subjected to vertical shocks.
- Naturally, the invention is not restricted -to the - embodiments above described. Instead, many modifications are feasible within the scope of the inventionO Especially, it should be noted that the invention is not restricted to telescopic supporting posts used in cornbination with a turntable.
. ~
-~ ~ - 6 -"'~
, ,' , : - ~ ' -- : ~
~-~ Support structures of the above type are frequently used for supporting vehicle chairs of various kinds, such as the driver's seat in an automobus.
An object of the present invention is to provide an improved support structure of said type having a very stable and reliable construction and a favourable function. For this purpose, the invention provides a support structure of the kind initially specified wherein each telescopic member comprises an inner tubular portion of comparatively small diameter and an outer tubular portion of comparatively large -~ diameter, the inner tubular portions of the two telescopic members forming cooperating bearing surfaces for holding sald members in axial alignment with each other, and the outer tubular portions of the two telescopic members being provided with interengaging means for preventing mutual rotation between said members.
By using a pair of inner tubular portions of - comparatively small diameter for forming the required bearing connectlon between the two telescopic members and a pair of .
.,'. ~
-.:
.... .
- " ~ . . : : : -.. , . : , , .. . , .. .. , ~ . , . ~.. . ., ,, . .. ~ .
,:, . .. .. . . .
~{~
outer tubular portions of comparatively large diameter for establishing the nonrotatable connection between said me~ers it is possible both to minimize the Eriction between the t~o telescopic members and to ensure that the play in a circumferential direction between said members will become neglectable.
The interengaging means may preferably comprise a slide block mounted on the outer tubular portion of one of said telescopic members and a longitudinally extending guide groove provided in the outer tubular portion of the other telescopic member and receiving said slide block displaceably therein.
The guide groove may suitably be formed with opposite side walls converging in a direction towards the bottom of said groove, the slide block having correspondingly converging contact surfaces for sliding engagement with saidside walls.
. . .
In this case, means may be provided to permit an automatic or manual adjustment of the position of the slide block in a :
radial direction of the supporting post.
` 20 Below the invention will be described in further detail, reference being had to the accompanying drawings, in which:
Figure 1 shows a vertical section through a support structure accoxding to one embodiment of the invention, ~` selected by way of example;
; Figure 2 is a partial sectional view, showing on an enlarged scale, a section taken along line II-II in Figure l;
, ~ - 2 -. . .
c~
Figure 3 shuws a vertica1 section through the upper part oE said support structure as seen ~rom the left in Figure l; and Figure 4 is a partial sectional view, corresponding to Figure 2, but illustratiny an alternative embodiment.
The support structure shown in Figures 1 to 3 is primarily intended to be used for supporting a vehicle chair, such as the driver's seat in an automobus. However, it may also be used in instances where it is desirable to permit an easy adjustment of the vertical position and/or the angular position of a supported object.
- The support structure comprises a supporting post, gen-erally designated by reference numeral 10, and a turntable gen-erally des;`gned 11, which is mounted on said supporting post.
~-~ The supporting post is of telescopic construction . .-, and consists of two telescoping members which are axially dis-placeable but non-rotatable with ~espect to each other. One of said telescopic members is rigidly secured to a base plate 12 at its lower end, while the other telescopic member carries the turntable 11 at its upper end. The first mentioned tele-scopic member comprises an inner tubular portion 13 of comparatively small diameter and an outer tubular portion 14 of comparatively large diameter. Similarly, the other telescopic member comprises an inner tubular portion 15 and an outer tubular portion 16. As can be seen from Figures 1 and 3, the inner -tubular portion 15 of the other telescopic member is journalled for axial displacement on the inner tubular portion 13 of the first mentioned telescopic ,~
:~ :
'~ ~ 3 ~
. .
member. The outer tubuLar portions 14 and 16 of the two telescopic members serve to lock said members ayainst mutual rotation. For this purpose, tubular portion 14 is provided with a longitudinally extending depression 17 of generally V-shaped cross-section which forms a guide groove for a slide block 18 mounted on the inner side of tubular portion 16 near the upper end of said portion. The outer tubular portions 14 and 16 may preferably have a considerably smaller wall thickness than the inner tubular portions. As can be seen from Figure 2, slide block 18 has a V~shaped cross-section corresponding to the cross-sectional shape of guide groove 17. Slide block 18 is mounted for limited movement in a radial direction with respect to tubular portion 16 by means of a holder 19 fixed to .:
-- said tubular portion and having a radially extending web on . .
~ which the slide block 18 is displaceably carried and urged :..
~-~ towards the bottom of the guide groove 17 by means of a spring plate 20. Through the action of spxing plate 20 the slide block 18 will automatically be adjusted so as to ensure that the lateral contact surfaces of the slide block will be maintained in sliding engagement with the converging side walls of the guide groove 17. Tubular portions 13, 14, 15 and 16 may be made from any suitable metal, while slide block 18 may ~- consist of a plastics material, such as nylon or delrin.
- Figure 4 illustrates an alternative embodiment, wherein a longitudinally extending guide groove is provided ` by a depression 33 formed in the outer tubular portion 16 and a slide block 34 is mounted on the inner tubular portion 14.
.,, ~,...
., ~ 4 -. .
', -. . .
lV~
In this case, the slide block 3~1 is carried by the ou-ter portion of a bolt 35, the inner portion of which is threaded into a socket 36 fit-ted and secured in an openingin the wall of the inner tubular portion 14. Bolt 35 is provided with a projecting flange 35a serving -to maintain the lataral contact surfaces of slide block 34 in s]iding engagement with the opposite converging side walls of guide groove 33. A circular opening 37 is provided in the bottom wall of guide groove 33 to permit the insertion of a tool for manually adjusting the radial position of bolt 35 and slide block 34.
Reference numeral 21 designates a gas spring placed ~- within tubular portion 13 and connected between an anchor plate 22 secured to base plate 12 through tubular portion 13, and a mountin~ 23 provided at the upper end of tubular portion 14. At its upper end, gas spring 21 has an axially projecting pin 24 forming an operating member for valve means enclosed in the gas spring. Pin 24 may be manually operated by a lever 25 provided with a tubular bearing mem~er 26, by means of which lever 25 is pivotally mounted on a pin 27 carried by a bracket fixed to tubular portion 16. As can be seen from the drawings, lever 25 contacts pin 24 at its one end. At its opposite endt lever 25 is provided with a handle (not shown).
In the free space between tubular portions 14 - and 15 a shock absorber 28 is provided having its one ; end connected to a plate 29 which is firmly secured to base plate 12 and supports tubular portion 14. The other end of shock absorber 28 is connected to a plate 30 which is ~ '.''' .
: .
' ~
~: - '' ' ' , . .. .
.:'~ ,' ' : :
ricJidly secured to the upper axial:Ly movable telescopic member of supportin~ post 10. Plate 30 serves to support turntable 11, which comprises a lower pla-te 31 secured to plate 30, and an upper plate 32 which is rotatably mounted on the lower plate 31. The turntable 11 will not be described in detail, as it is of the general kind disclosed in British Patent No.
1,473,284.
The gas spring 21,which in known manner includes a mechanical spring, serves on the one hand to facilitate an easy adjustment of the vertical position of a chair mounted on turn-table 11 and, on the other hand, to permit a limited resilient mobility in an axial direction between the two telescopic mem-bers of post 10 for any adjusted relative position of said mem-bers. As soon as the valve means of the gas spring is actuated .
by means of lever 25, the gas spring tends to raise the turntable and the chair mounted thereon. In order to permit the chair to be ralsed, an occupant should ternporarily reduce the load on -the chair. If, instead, the chair is to be lowered, the . , - occupant shouLd load the chair sufficiently to overcorne the up-wardly directed spring force when the valve means of the gas spring is actuated. The shock absorber 28 serves to attenuate the movements of the chair when the chair is subjected to vertical shocks.
- Naturally, the invention is not restricted -to the - embodiments above described. Instead, many modifications are feasible within the scope of the inventionO Especially, it should be noted that the invention is not restricted to telescopic supporting posts used in cornbination with a turntable.
. ~
-~ ~ - 6 -"'~
, ,' , : - ~ ' -- : ~
Claims (4)
1. A support structure, especially for supporting a vehicle chair, comprising an upright supporting post of tele-scopic construction having two telescoping members which are axially displaceable but nonrotatable with respect to each other, characterized in that each telescopic member comprises an inner tubular portion of comparatively small diameter and an outer tubular portion of comparatively large diameter, the inner tubular portions of the two telescopic members forming cooperating bearing surfaces for holding said members in axial alignment with each other, and the outer tubular portions of the two telescope members being provided with interengaging means for preventing mutual rotation between said members.
2. A support structure according to claim 1, char-acterized in that said interengaging means comprise a slide block mounted on the outer tubular portion of one of said telescopic members and a longitudinally extending guide groove provided in the outer tubular portion of the other telescopic member and receiving said slide block displaceably therein.
3. A support structure according to claim 2, characterized in that the guide groove is formed with opposite side walls converging in a direction towards the bottom of said groove, the slide block having correspondingly converging contact surfaces for sliding engagement with said side walls.
4. A support structure according to claim 3, characterized by means permitting an adjustment of the position of the slide block in a radial direction of the supporting post.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE7603007A SE408287B (en) | 1976-03-04 | 1976-03-04 | DEVICE FOR A PREFERRED STATEMENT FOR A VEHICLE SEAT RELEASED |
| SE7603007-1 | 1976-03-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1091568A true CA1091568A (en) | 1980-12-16 |
Family
ID=20327229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA272,999A Expired CA1091568A (en) | 1976-03-04 | 1977-03-02 | Support structure, especially for supporting a vehicle chair, comprising an upright supporting post of telescopic structure |
Country Status (5)
| Country | Link |
|---|---|
| CA (1) | CA1091568A (en) |
| DE (1) | DE2709332A1 (en) |
| FR (1) | FR2342686A1 (en) |
| GB (1) | GB1514698A (en) |
| SE (1) | SE408287B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE449424B (en) * | 1983-08-22 | 1987-05-04 | Svenska Vision Ab | TELESCOPE BUILT STANDS |
| DE4040268A1 (en) * | 1990-12-17 | 1992-06-25 | Suspa Compart Ag | Column for height adjustable chair - has base frame and seat support and has two gas operated springs each located inside pipe, with guide piece |
| US6182583B1 (en) * | 1997-09-08 | 2001-02-06 | John E. Larson | Height adjustable pedestal for chairs and tables |
| US6299113B1 (en) | 1998-12-18 | 2001-10-09 | Koyo Giken Co., Ltd. | Telescopic member, cylindrical body and molded body |
| ITUD20060056A1 (en) * | 2006-03-10 | 2007-09-11 | Fisa Spa | VERTICAL SPRING DEVICE OF A TELESCOPIC ELEMENT COMPARED TO A FIXED ELEMENT |
| WO2009095073A1 (en) * | 2008-01-30 | 2009-08-06 | Code-X Ag | Seat for a vehicle |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1666392A (en) * | 1926-09-27 | 1928-04-17 | Int Motor Co | Seat |
| DE621149C (en) * | 1934-03-15 | 1935-11-02 | August Froescher Jun | Telescopic sliding cylinder guide on liquid lifting devices for hairdressing and surgical stools |
| DE889688C (en) * | 1950-12-17 | 1953-11-19 | Karl Herzog Sanitaere Friseur | Lifting device |
| DE944085C (en) * | 1952-09-15 | 1956-06-07 | Karl Herzog Sanitaere Friseur | Lifting device |
| DE1857366U (en) * | 1962-06-01 | 1962-08-23 | Franz Kiel G M B H | DEVICE ON SEATS, IN PARTICULAR ON DRIVER'S SEATS IN MOTOR VEHICLES. |
| DE1801159A1 (en) * | 1968-08-06 | 1970-04-30 | Ignatz Vogel Kg | Guide device |
| DE6802264U (en) * | 1968-10-15 | 1969-10-23 | Bremshey & Co | TELESCOPIC COLUMN |
-
1976
- 1976-03-04 SE SE7603007A patent/SE408287B/en not_active IP Right Cessation
-
1977
- 1977-02-25 GB GB813177A patent/GB1514698A/en not_active Expired
- 1977-03-02 FR FR7706074A patent/FR2342686A1/en active Granted
- 1977-03-02 CA CA272,999A patent/CA1091568A/en not_active Expired
- 1977-03-03 DE DE19772709332 patent/DE2709332A1/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| SE408287B (en) | 1979-06-05 |
| FR2342686B1 (en) | 1983-09-30 |
| FR2342686A1 (en) | 1977-09-30 |
| DE2709332A1 (en) | 1977-09-08 |
| GB1514698A (en) | 1978-06-21 |
| SE7603007L (en) | 1977-09-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |