CA1231930A - Apparatus for supporting an object in a desired position - Google Patents
Apparatus for supporting an object in a desired positionInfo
- Publication number
- CA1231930A CA1231930A CA000467440A CA467440A CA1231930A CA 1231930 A CA1231930 A CA 1231930A CA 000467440 A CA000467440 A CA 000467440A CA 467440 A CA467440 A CA 467440A CA 1231930 A CA1231930 A CA 1231930A
- Authority
- CA
- Canada
- Prior art keywords
- arm
- pair
- bracket
- control means
- arms
- 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
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- Pivots And Pivotal Connections (AREA)
Abstract
APPARATUS FOR SUPPORTING AN OBJECT
IN A DESIRED POSITION
Abstract Each arm of a first pair of arms is pivotally connected at spaced-apart pivot locations to a first clamp bracket and to an adjustment bracket, respectively, and each arm of a second pair of arms is pivotally connected at spaced-apart locations to a second clamp bracket and to the adjustment bracket, respectively.
A first control is engageable with an arm of the first pair for selectively enabling and preventing pivoting movement thereof, and a second control is engageable with an arm of the second pair for selectively enabling and preventing pivoting movement thereof.
When the first and second controls both enable the respective pivoting movements, the second clamp bracket can be moved to a desired position, and, when the first and second controls both prevent the respective pivoting movements, the second clamp bracket retains its position.
IN A DESIRED POSITION
Abstract Each arm of a first pair of arms is pivotally connected at spaced-apart pivot locations to a first clamp bracket and to an adjustment bracket, respectively, and each arm of a second pair of arms is pivotally connected at spaced-apart locations to a second clamp bracket and to the adjustment bracket, respectively.
A first control is engageable with an arm of the first pair for selectively enabling and preventing pivoting movement thereof, and a second control is engageable with an arm of the second pair for selectively enabling and preventing pivoting movement thereof.
When the first and second controls both enable the respective pivoting movements, the second clamp bracket can be moved to a desired position, and, when the first and second controls both prevent the respective pivoting movements, the second clamp bracket retains its position.
Description
:~3~3~
1 This invention relates to apparatus for supporting an object in a desired position and, more particularly, to novel and highly-effective apparatus whereby the position of copy or of a lamp, etc., can be easily and accurately adjusted without the aid of tensioning springs or the like.
There is often a need to adjust the position of copy-holders, lamps, etc. In the case of copyholders, where one must read the copy held, the positioff selected will depend on factors including the size of the type to be read, the direction and intensity of the lighting, and the reflectiveness of the copy.
In the case of lamps, the position selected will depend on factors including the intensity of the light produced by the lamp, the presence or absence of additional sources of light, and (in the case of a spotlight) the area of the spot at the distance of the object illuminated. In both cases, the position selected will depend upon other factors including the height, the visual acuity, and the personal preferences of the user of the apparatus.
All of the factors mentioned above are subject to change.
For example, new copy may be substituted, ambient lighting condi-tions may change~ the person using the apparatus may become fa-tigued, or a different person may use the apparatus~
Because of the importance of the problem, considerable attention has been given to it, and there are conventional devices for dealing with it. One such device comprises two pair~ of arms.
One pair is pivotally connected at one end to a first clamp bracket adapted to be secured to a support and at the other end to an adjustment bracket. The other pair of arms is pivotally connected at one end to a second clamp bracket adapted to support a copy-holder or the like and at the other end to the same adjustment bracket~ A single thumb knob control is provided at the point where one of the arms is pivotally connected to the adjustment bracket. To prevent the copy or lamp from sagging, notwithstanding ~3~3~
1 tightening of the control knob~ it is necessary to add tensioning springs to balance the weight of the apparatus. For example, each of a first pair of tensioning springs may have one end connected to the first clamp bracket and the other end connected to one of the arms of the first pair of arms mentioned above, and each of a second pair of tensioning springs may have one end connected to the adjustment bracket and the other end connected to an arm of the second pair.
The conventional solution is very useful and widely adopted, but the requirement for tensioning springs is obviously a drawback. Moreover, the position of the thumb knob precisely at the pivot between one of the arms and the adjustment bracket produces the result that the locking mechanism has a negligible mechanical advantageO A light accidental knock may be sufficient to cause unwanted repositioning of the copy or lamp even though the thumb knob is screwed downO
Summar~ of the Invention An object of the invention is to remedy the problems of conventional apparatus noted above and, in particular, to provide apparatus for supporting an object in a desired position which avoids the need for tensioning springs and which makes it possible to adjust the position of the object easily and accur-ately. Another object of the invention is to provide apparatus which reliably holds the object in a selected position despite accidental knocks resulting for example from an errant gesture by a user of the apparatus.
The foregoing and other objects are attained in apparatus comprising first bracket means adapted to be secured to a support, second bracket means aclapted to support an object in a desired position, adjustment means, first arm means connecting the adjustment means to the first bracket means~ and second arm means connecting the adjustment means to the second bracket means.
t3~
1 In accordance with the invention, the first and second arm means respectively comprise first and second pairs of arms, each arm of the Eirst pair being pivotally connected at spaced-apart pivot locations to the first brack~t means and the adjust-ment means, respectively, and each arm of the second pair being pivotall~ connected at spaced-apart locations to the second bracket means and the adjustment means, respectively. First control means is engageable with an arm of the first pair for selectively enabling and preventing pivoting movement thereof, and second control means is engageable with an arm of the second pair for selectively enabling and preventing pivoting movement thereof.
Accordingly, when the first and second control means both enable the respective pivoting movements, the second bracXet means can be moved to a desired position, and, when the first and second control means both prevent the respective pivoting move-ments, the second bracket means retains its position.
Apparatus according to the invention is preferably characteri~ed by a number of additional eatures, including the following:
Each of the first and second control means is also en-gageable with the adjustment means, and the adjustment means is formed with a pair of arcuate slots, a first of the slots describ-ing an arc centered on a pivot location of the arm with which the first control means is engageable and a second of the slots describing an arc centered on a pivot location of the arm with which the second control means is engageable. The first and second control means comprise shaft means respectively guided in the slots.
Each of the first and second control means is formed with a threaded portion and with a control knob therefor, the knobs when turned in one direction enabling, and when turned in the other direction preventing, the respective pivoting movements.
3~
1 The pivot locations of any one of the arms are spaced apart a distance equal to the distance between the pivot locations of the other arm of the same pair~ and the pivot locations o the first and second pairs of arms are at the vertices of first and second parallelograms, respectively. The angular orientation of the second bracket means thus remains constant with changes in the position thereof. Preferably~ the pivot locations of any one of the arms are spaced apart a distance equal to the distance between the pivot locations of any other arm.
~rief Description of the Drawing A better understanding of the invention may be gained from a consideration of the following detailed description of the preferred embodiments thereof, in conjunction with the appended figures of the drawing, wherein:
Fig. 1 is a perspective view of a preferred embodiment of apparatus constructed in accordance with the invention;
Fig. 2 is a side elevational view of the apparatus of Fig. 1; and Fig. 3 is an enlarged sectional view along the line 3 3 of Fig. 2 and looking in the direction of the arrows.
Description of the Prefe_red Embodiments Figs. 1 and 2 show apparatus 10 constructed in accord-ance with the invention~ It comprises first bracket means 12 adapted to be secured to a support such as a sleeve 14, second bracket means 16 (visible in Fig. 2) adapted to support an object such as a copyholder 17 in a desired position, and adjustment means 18. The second bracket means 16 is shown as directly supporting a pivot shaft 20 which in turn supports the copyholder 17 or a lamp, for example. The sleeve 14 is supported by a clamp 21 which can be secured to the top of a desk, table, or other suitable support.
First arm means 22 connects the adjustment means 18 to ~3;~3~
l the first bracket means 12, and second arm means 24 connects the adjustment means 18 to the second bracket means 16.
In accordance with the invention, the first and second arm means 22 and 24 respectively comprise first and second pairs of arms. Thus the arm means 22 comprises an arm 26 and an arm 28, and the arm means 24 comprises an arm 30 and an arm 32. Each arm 26 and 28 of the first pair is pivotally connected at spaced-apart pivot locations to the ~irst bracket means 12 and the ad-justment means 18, respectively. Specifically, the arm 26 is pivotally connected at spaced-apart pivot locations 34 and 36 to the first bracket means 12 and the adjustment means 18, respec-tively, and the arm 28 is pivotally connected at spaced-apart pivot locations 38 and 40 to the first bracket means 12 and the adjustment means 18~ respectively. A pivot stud at each pivot location passes through an arm and one of the bracket means or through an arm and the adjustment means to facilitate pivoting of the arm Similarly, each arm of the second pair of arms 30 and 3 is pivotally connected at spaced-apart pivot locations to the sec ond bracket means 16 and the adjustment means l8, respectively~
Thus the arm 30 is pivotally connected at pivot locations 42 and 44 to the bracket means 16 and the adjustment means 18, respec-tively, and the arm 32 is pivotally connected at pivot locations 46 and 48 to the bracket means 16 and adjustment means 18, respectively.
First control means 50 is engageable with the arm 26 of the first pair of arms 26 and 28 for selectively enabling and preventing pivoting movement thereoE, and second control means 52 is engageable with the arm 30 of the second pair of arms 30 and 32 for selectively enabling and preventing pivoting mo~ement thereof.
Thus, when the first and second control means 50 and 52 both enable the respective pivoting movements, the second bracket 1 means 16 can be moved to a desired position, and, when the first and second control means 50 and 52 both prevent the respective pivoting movements, the second bracket means 16 retains its position.
Each of the first and second control means 50 and 52 is also engageable with the adjustment means 18. The adjustmen-t rneans 1~ is formed with a pair of arcuate slots 54 and 56. A
Eirst of the slots 54 describes an arc centered on the pivot loca-~ion 36 of the arm 26 with which the first control means 50 is ~0 engageable, and a second of the slots 56 describes an arc centered on a pivot location ~4 of the arm 30 with which the second control means 52 is engageable. The first and second control means 50 and 52 comprise shaft means 5B (Fig. 3) respectively guided in the slots.
Each of the first and second control means 50 and 52 is preferably formed with a threaded portion such as a pin 60 (Fig. 3) and with a control knob 62 having an interior thread (not shown) for engagement therewith, the knobs when turned in one direction enabling, and when turned in the other direction pre-venting, the respective pivoting movements. Since the control means 50 and 52 act at points spaced apart from the pivot loca-tions/ they have a greater mechanical advantage than the devices of the prior art described above, and apparatus according the invention is better able than the devices of the prior art to hold copy or a lamp, etc., in a desired position, despite acci-dental knocks.
The pivot locations of any one of the a~ms are prefer-ably spaced apart a distance substantially equal to the distance between the pivot locations of the other arm of the same pair.
For example, the distance between pivot locations 34 and 36 is the same as the distance between pivot locations 38 and 40; simiLarly, the distar~ce between pivot locations ~2 and ~ is the same as the ~;~3~3~
1 distance between pivot locations 46 and 48. The pivot locations of the first and second pairs of arms are moreover substantially at the vertices of first and second parallelograms, respectively.
That is, the pivot locations 34, 36, 40, 38 are at the vertices of a first parallelogram, and the pivot locations 42, 4~, 48, 46 are at the vertices of a second parallelogram. The angular orienta-tion of the second bracket means 16 thus remains constant with changes in the position thereof. Preferably, the two pivot loca-tions of any one of the arms are spaced apart a distance equal to the distance between the two pivot locations of any other arm, and the first and second parallelograms described above are of the same si~e.
Thus there is provided in accordance with the invention a novel and highly-effective apparatus whereby the position o~
copy or of a la~p, etc., can be easily and accurately adjus-ted without the aid of tensioning springs or the like. Many other embodiments of the invention will readily occur to those skilled in the art upon consideration of this disclosure. For example, the first and second parallelograms described above need not be of the same size. ~oreover, wing nuts may be substituted for the control knobs, di~ferent forms of clamp brackets may be employed, and the arcuate slots may be in any of the brackets or in any of the arms, so long as, by means cooperating with one slot, it is possible selectively to enable or prevent pivoting movements of
1 This invention relates to apparatus for supporting an object in a desired position and, more particularly, to novel and highly-effective apparatus whereby the position of copy or of a lamp, etc., can be easily and accurately adjusted without the aid of tensioning springs or the like.
There is often a need to adjust the position of copy-holders, lamps, etc. In the case of copyholders, where one must read the copy held, the positioff selected will depend on factors including the size of the type to be read, the direction and intensity of the lighting, and the reflectiveness of the copy.
In the case of lamps, the position selected will depend on factors including the intensity of the light produced by the lamp, the presence or absence of additional sources of light, and (in the case of a spotlight) the area of the spot at the distance of the object illuminated. In both cases, the position selected will depend upon other factors including the height, the visual acuity, and the personal preferences of the user of the apparatus.
All of the factors mentioned above are subject to change.
For example, new copy may be substituted, ambient lighting condi-tions may change~ the person using the apparatus may become fa-tigued, or a different person may use the apparatus~
Because of the importance of the problem, considerable attention has been given to it, and there are conventional devices for dealing with it. One such device comprises two pair~ of arms.
One pair is pivotally connected at one end to a first clamp bracket adapted to be secured to a support and at the other end to an adjustment bracket. The other pair of arms is pivotally connected at one end to a second clamp bracket adapted to support a copy-holder or the like and at the other end to the same adjustment bracket~ A single thumb knob control is provided at the point where one of the arms is pivotally connected to the adjustment bracket. To prevent the copy or lamp from sagging, notwithstanding ~3~3~
1 tightening of the control knob~ it is necessary to add tensioning springs to balance the weight of the apparatus. For example, each of a first pair of tensioning springs may have one end connected to the first clamp bracket and the other end connected to one of the arms of the first pair of arms mentioned above, and each of a second pair of tensioning springs may have one end connected to the adjustment bracket and the other end connected to an arm of the second pair.
The conventional solution is very useful and widely adopted, but the requirement for tensioning springs is obviously a drawback. Moreover, the position of the thumb knob precisely at the pivot between one of the arms and the adjustment bracket produces the result that the locking mechanism has a negligible mechanical advantageO A light accidental knock may be sufficient to cause unwanted repositioning of the copy or lamp even though the thumb knob is screwed downO
Summar~ of the Invention An object of the invention is to remedy the problems of conventional apparatus noted above and, in particular, to provide apparatus for supporting an object in a desired position which avoids the need for tensioning springs and which makes it possible to adjust the position of the object easily and accur-ately. Another object of the invention is to provide apparatus which reliably holds the object in a selected position despite accidental knocks resulting for example from an errant gesture by a user of the apparatus.
The foregoing and other objects are attained in apparatus comprising first bracket means adapted to be secured to a support, second bracket means aclapted to support an object in a desired position, adjustment means, first arm means connecting the adjustment means to the first bracket means~ and second arm means connecting the adjustment means to the second bracket means.
t3~
1 In accordance with the invention, the first and second arm means respectively comprise first and second pairs of arms, each arm of the Eirst pair being pivotally connected at spaced-apart pivot locations to the first brack~t means and the adjust-ment means, respectively, and each arm of the second pair being pivotall~ connected at spaced-apart locations to the second bracket means and the adjustment means, respectively. First control means is engageable with an arm of the first pair for selectively enabling and preventing pivoting movement thereof, and second control means is engageable with an arm of the second pair for selectively enabling and preventing pivoting movement thereof.
Accordingly, when the first and second control means both enable the respective pivoting movements, the second bracXet means can be moved to a desired position, and, when the first and second control means both prevent the respective pivoting move-ments, the second bracket means retains its position.
Apparatus according to the invention is preferably characteri~ed by a number of additional eatures, including the following:
Each of the first and second control means is also en-gageable with the adjustment means, and the adjustment means is formed with a pair of arcuate slots, a first of the slots describ-ing an arc centered on a pivot location of the arm with which the first control means is engageable and a second of the slots describing an arc centered on a pivot location of the arm with which the second control means is engageable. The first and second control means comprise shaft means respectively guided in the slots.
Each of the first and second control means is formed with a threaded portion and with a control knob therefor, the knobs when turned in one direction enabling, and when turned in the other direction preventing, the respective pivoting movements.
3~
1 The pivot locations of any one of the arms are spaced apart a distance equal to the distance between the pivot locations of the other arm of the same pair~ and the pivot locations o the first and second pairs of arms are at the vertices of first and second parallelograms, respectively. The angular orientation of the second bracket means thus remains constant with changes in the position thereof. Preferably~ the pivot locations of any one of the arms are spaced apart a distance equal to the distance between the pivot locations of any other arm.
~rief Description of the Drawing A better understanding of the invention may be gained from a consideration of the following detailed description of the preferred embodiments thereof, in conjunction with the appended figures of the drawing, wherein:
Fig. 1 is a perspective view of a preferred embodiment of apparatus constructed in accordance with the invention;
Fig. 2 is a side elevational view of the apparatus of Fig. 1; and Fig. 3 is an enlarged sectional view along the line 3 3 of Fig. 2 and looking in the direction of the arrows.
Description of the Prefe_red Embodiments Figs. 1 and 2 show apparatus 10 constructed in accord-ance with the invention~ It comprises first bracket means 12 adapted to be secured to a support such as a sleeve 14, second bracket means 16 (visible in Fig. 2) adapted to support an object such as a copyholder 17 in a desired position, and adjustment means 18. The second bracket means 16 is shown as directly supporting a pivot shaft 20 which in turn supports the copyholder 17 or a lamp, for example. The sleeve 14 is supported by a clamp 21 which can be secured to the top of a desk, table, or other suitable support.
First arm means 22 connects the adjustment means 18 to ~3;~3~
l the first bracket means 12, and second arm means 24 connects the adjustment means 18 to the second bracket means 16.
In accordance with the invention, the first and second arm means 22 and 24 respectively comprise first and second pairs of arms. Thus the arm means 22 comprises an arm 26 and an arm 28, and the arm means 24 comprises an arm 30 and an arm 32. Each arm 26 and 28 of the first pair is pivotally connected at spaced-apart pivot locations to the ~irst bracket means 12 and the ad-justment means 18, respectively. Specifically, the arm 26 is pivotally connected at spaced-apart pivot locations 34 and 36 to the first bracket means 12 and the adjustment means 18, respec-tively, and the arm 28 is pivotally connected at spaced-apart pivot locations 38 and 40 to the first bracket means 12 and the adjustment means 18~ respectively. A pivot stud at each pivot location passes through an arm and one of the bracket means or through an arm and the adjustment means to facilitate pivoting of the arm Similarly, each arm of the second pair of arms 30 and 3 is pivotally connected at spaced-apart pivot locations to the sec ond bracket means 16 and the adjustment means l8, respectively~
Thus the arm 30 is pivotally connected at pivot locations 42 and 44 to the bracket means 16 and the adjustment means 18, respec-tively, and the arm 32 is pivotally connected at pivot locations 46 and 48 to the bracket means 16 and adjustment means 18, respectively.
First control means 50 is engageable with the arm 26 of the first pair of arms 26 and 28 for selectively enabling and preventing pivoting movement thereoE, and second control means 52 is engageable with the arm 30 of the second pair of arms 30 and 32 for selectively enabling and preventing pivoting mo~ement thereof.
Thus, when the first and second control means 50 and 52 both enable the respective pivoting movements, the second bracket 1 means 16 can be moved to a desired position, and, when the first and second control means 50 and 52 both prevent the respective pivoting movements, the second bracket means 16 retains its position.
Each of the first and second control means 50 and 52 is also engageable with the adjustment means 18. The adjustmen-t rneans 1~ is formed with a pair of arcuate slots 54 and 56. A
Eirst of the slots 54 describes an arc centered on the pivot loca-~ion 36 of the arm 26 with which the first control means 50 is ~0 engageable, and a second of the slots 56 describes an arc centered on a pivot location ~4 of the arm 30 with which the second control means 52 is engageable. The first and second control means 50 and 52 comprise shaft means 5B (Fig. 3) respectively guided in the slots.
Each of the first and second control means 50 and 52 is preferably formed with a threaded portion such as a pin 60 (Fig. 3) and with a control knob 62 having an interior thread (not shown) for engagement therewith, the knobs when turned in one direction enabling, and when turned in the other direction pre-venting, the respective pivoting movements. Since the control means 50 and 52 act at points spaced apart from the pivot loca-tions/ they have a greater mechanical advantage than the devices of the prior art described above, and apparatus according the invention is better able than the devices of the prior art to hold copy or a lamp, etc., in a desired position, despite acci-dental knocks.
The pivot locations of any one of the a~ms are prefer-ably spaced apart a distance substantially equal to the distance between the pivot locations of the other arm of the same pair.
For example, the distance between pivot locations 34 and 36 is the same as the distance between pivot locations 38 and 40; simiLarly, the distar~ce between pivot locations ~2 and ~ is the same as the ~;~3~3~
1 distance between pivot locations 46 and 48. The pivot locations of the first and second pairs of arms are moreover substantially at the vertices of first and second parallelograms, respectively.
That is, the pivot locations 34, 36, 40, 38 are at the vertices of a first parallelogram, and the pivot locations 42, 4~, 48, 46 are at the vertices of a second parallelogram. The angular orienta-tion of the second bracket means 16 thus remains constant with changes in the position thereof. Preferably, the two pivot loca-tions of any one of the arms are spaced apart a distance equal to the distance between the two pivot locations of any other arm, and the first and second parallelograms described above are of the same si~e.
Thus there is provided in accordance with the invention a novel and highly-effective apparatus whereby the position o~
copy or of a la~p, etc., can be easily and accurately adjus-ted without the aid of tensioning springs or the like. Many other embodiments of the invention will readily occur to those skilled in the art upon consideration of this disclosure. For example, the first and second parallelograms described above need not be of the same size. ~oreover, wing nuts may be substituted for the control knobs, di~ferent forms of clamp brackets may be employed, and the arcuate slots may be in any of the brackets or in any of the arms, so long as, by means cooperating with one slot, it is possible selectively to enable or prevent pivoting movements of
2~ the first pair of arms, and, by rneans cooperating with the other slot, it is possible selectively to enable or prevent pivoting movements of the second pair of arms.
While there have been described what are considered to be the preferred embodiments of the invention, it will be obvious to those skilled in the art that various changes and modifications may be made therein without departing from the invention, and it is, therefore, aimed to cover all such changes and modifications as falls within the true spirit and scope of the invention.
While there have been described what are considered to be the preferred embodiments of the invention, it will be obvious to those skilled in the art that various changes and modifications may be made therein without departing from the invention, and it is, therefore, aimed to cover all such changes and modifications as falls within the true spirit and scope of the invention.
Claims (6)
1. In apparatus comprising first bracket means adapted to be secured to a support, second bracket means adapted to support an object in a desired position, adjustment means, first arm means connecting said adjustment means to said first bracket means, and second arm means connecting said adjustment means to said second bracket means, the improvement wherein said first and second arm means respectively comprise first and second pairs of arms, each arm of said first pair being pivotally connected at spaced-apart pivot locations to said first bracket means and said adjustment means, respectively, and each arm of said second pair being pivotally connected at spaced-apart pivot locations to said second bracket means and said adjustmeans means, respectively, and further comprising first control means engageable with an arm of said first pair for selectively enabling and preventing pivoting movement thereof, and second control means engageable with an arm of said second pair for selectively enabling and preventing pivoting movement thereof, whereby, when said first and second control means both enable said respective pivoting movements, said second brack-et means can be moved to a desired position, and, when said first and second control means both prevent said respective pivoting movements, said second bracket means retains said position.
2. Apparatus according to claim 1 wherein each of said first and second control means is also engageable with said adjustment means.
3. Apparatus according to claim 2 wherein said adjust-ment means is formed with a pair of arcuate slots, a first of said slots describing an arc centered on a pivot location of said arm with which said first control means is engageable and a second of said slots describing an arc centered on a pivot location of said arm with which said second control means is engageable, and wherein said first and second control means comprise shaft means respectively guided in said slots.
4. Apparatus according to claim 3 wherein each of said first and second control means is formed with a threaded portion and with a control knob therefor, said knobs when turned in one direction enabling, and when turned in the other direction preventing, said respective pivoting movements.
5. Apparatus according to claim 1 wherein the pivot locations of any one of said arms are spaced apart a distance substantially equal to the distance between the pivot locations of the other arm of the same pair, whereby the pivot locations of said first and second pairs of arms are at the vertices of first and second parallelograms, respectively, and the angular orien-tation of said second clamp means remains constant with changes in the position thereof.
6. Apparatus according to claim 5 wherein the pivot locations of any one of said arms are spaced apart a distance substantially equal to the distance between the pivot locations of any other arm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000467440A CA1231930A (en) | 1984-11-09 | 1984-11-09 | Apparatus for supporting an object in a desired position |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000467440A CA1231930A (en) | 1984-11-09 | 1984-11-09 | Apparatus for supporting an object in a desired position |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1231930A true CA1231930A (en) | 1988-01-26 |
Family
ID=4129111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000467440A Expired CA1231930A (en) | 1984-11-09 | 1984-11-09 | Apparatus for supporting an object in a desired position |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1231930A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112203810A (en) * | 2018-03-27 | 2021-01-08 | Idea机器显影设计及生产有限公司 | Clamping and moving system |
-
1984
- 1984-11-09 CA CA000467440A patent/CA1231930A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112203810A (en) * | 2018-03-27 | 2021-01-08 | Idea机器显影设计及生产有限公司 | Clamping and moving system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |