CA1178439A - Clamping bracket for picture frames - Google Patents
Clamping bracket for picture framesInfo
- Publication number
- CA1178439A CA1178439A CA000394092A CA394092A CA1178439A CA 1178439 A CA1178439 A CA 1178439A CA 000394092 A CA000394092 A CA 000394092A CA 394092 A CA394092 A CA 394092A CA 1178439 A CA1178439 A CA 1178439A
- Authority
- CA
- Canada
- Prior art keywords
- screw
- half bottom
- bracket
- pair
- opposed
- 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
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47G—HOUSEHOLD OR TABLE EQUIPMENT
- A47G1/00—Mirrors; Picture frames or the like, e.g. provided with heating, lighting or ventilating means
- A47G1/06—Picture frames
- A47G1/10—Corner clips or corner-connecting appliances for frames
- A47G1/101—Corner clips or corner-connecting appliances for frames for insertion within frame members
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47G—HOUSEHOLD OR TABLE EQUIPMENT
- A47G1/00—Mirrors; Picture frames or the like, e.g. provided with heating, lighting or ventilating means
- A47G1/06—Picture frames
- A47G1/10—Corner clips or corner-connecting appliances for frames
- A47G1/101—Corner clips or corner-connecting appliances for frames for insertion within frame members
- A47G1/102—Corner clips or corner-connecting appliances for frames for insertion within frame members having an aperture to receive a fastener to connect to a frame member
Abstract
ABSTRACT OF THE DISCLOSURE
A clamping bracket for abutting channel members such as picture frame sections is disclosed. The bracket has a pair of integral arms at the desired angle to one another and each arm is provided with a pair of side walls and a pair of partial half bottom walls with opposed, spaced, facing surfaces. A
screw is threaded into a top wall of each arm and can engage the facing surfaces of the half bottom walls to expand the bracket within its channel to firmly and securely hold it therein.
A clamping bracket for abutting channel members such as picture frame sections is disclosed. The bracket has a pair of integral arms at the desired angle to one another and each arm is provided with a pair of side walls and a pair of partial half bottom walls with opposed, spaced, facing surfaces. A
screw is threaded into a top wall of each arm and can engage the facing surfaces of the half bottom walls to expand the bracket within its channel to firmly and securely hold it therein.
Description
~ ~ 11'78 ~39 CLAMPING BRACKET FOR PICTURE FR~MES
The present invention relates to clamping brackets and, in particular, to clamping brackets of the type used to secure abutting channel members such as picture frame sect-ions in the desired angular relationship.
The picture frame disclosed and claimed in the applicant's prior Canadian Patent No. 881,000, dated September 14, 1971 has enjoyed very remarkable commercial success. That patent discloses a picture frame constructed of a plurality of channel section frame members which are secured together at their corners by clamping brackets. The picture frame of Canadian Patent 881,000 is easily assembled and disassembled and enables the frame to be dismantled and re-used as occas-ion may require.
The present invention provides an easily assembled and disassembed picture frame making use of extruded metal frame members of channel form secured together by brackets which provide for a joint of exceptional strength and rigidity.
Furthermore, the clamping bracket of the present invention will secure the corner joints of such a picture frame with-out damage to the extruded channel from elements and withoutdamage to the material being framed should the material extend right into the vertex of the frame members.
A preferred embodiment of the invention is disclosed in the accompanying drawings in which like reference numerals ~k il~7~ ~3~
_ -- 2 denote like parts and in which:
Fig. 1 is a general perspective view, partly exploded, showing a picture frame embodying clamping brackets of the present invention;
Fig. 2 is an exploded perspective view showing, in en-larged detail, the clamping bracket and its relationship to the extruded metal frame elements;
Fig. 3 is a perspective view of the clamping element of Fig. 2 taken from the opposite side;
Fig. 4 is a section view along line 4-4 of Fig. 2;
Fig. 5 is a view similar to Fig. 1 showing an alternat-ive configuration of picture frame that is possible with the present invention;
Fig. 6 is a view similar to Fig. 4 but showing a some-what modified version of the clamping bracket of the present invention;
Fig. 7 is a view similar to Fig. 6 showing the config-uration of the clamping bracket when in the tightened condit-ion, and Fig. 8 is a perspective view similar to Fig. 3 but on an enlarged scale showing the modified clamping bracket of Figs. 6 and 7.
Referring to Fig. 1, a picture frame can be seen to comprise four framing elements 10 secured toyether in end-to-end abutment to enclose a defined area 11 within which the picture or other article to be framed is mounted. The framing elements 10 are secured together at their corners by the clamping brackets 12 of the present invention which will be described in greater detail below.
In Fig. 2, an enlarged view of a typical corner of a picture frame such as that illustrated in Fig. 1 is illust-rated. The framing element 10 may be seen to comprise a metal extrusion formed to provide a channel 13 defined by a bottom wall 14, a pair of opposed side walls 15 and 16 and a pair of inwardly turned lips or flanges 17 and 18.
The channel 13 is of such a size and configuration that it snugly receives the clamping bracket 12.
The framing element 10 additionally includes a further flange 19 and an inwardly turned lip or flange 20 to provide a groove 21 within which the edge of the framing glass 22 and mat 23 may be received.
Referring now to Figs. 2, 3 and 4, the clamping bracket 12 of the present invention may be seen to comprise a pair of integral bracket arms 24 and 25 which lie at an angle to each other equal to the desired angle between adjacent frame or channel members. In the embodiment illustrated in Figs.
1, 2 and 3, the arms 24 and 25 lie at 90 to each other.
Each bracket arm is provided with a top wall 26 (see Fig. 4), a pair of integral side walls 27 and 28 and (see Fig. 3)a pair of half bottom walls 29 and 30. The half bottom walls 29 and 30 are integral with the side walls and extend inwardly therefrom.
The inner edges of each pair of half bottom walls present spaced, opposed, facing surfaces which, in the embod-iment of Figs. 2, 3 and 4 are constituted by upwardly and outwardly inclined flanges 31 and 32 which present opposed cam surfaces. A screw 33 is threaded into a threaded apera-ture 34 in the top wall 26, the axis of the screw bisecting the space between the spaced, opposed, facing surfaces and, in the case of the embodiment of Figs. 2, 3 and 4, bisecting the angle between the opposed cam surfaces.
In operation, the clamping bracket as previously des-cribed provides for an extremely strong and rigid connection between adjacent framing elements 10.
.11'~4;~9 ~ - 4 In order to secure the two framing elements 10 together, the clamping bracket is inserted in the adjacent channel 13 of adjacent framing elements 10 which have previously been mitred at an appropriate angle (to provide a right angle joint in Fig. 2). The framing elements 10 are then moved together so as to provide a tight, neat and closed joint whereupon the screws 33 are turned to advance them into the clamping bracket.
Referring to Fig. 4, it will be seen that as the screw 33 is advanced towards the cam surfaces, the conical tip 35 with which the screw is provided will engage the cam surfaces of flanges 31 and 32. This engagement will produce a clamping action in both senses of two mutually perpendicular directions.
First, the screw advancing along its axis and engaging the flanges 31 and 32 will exert a force and a reaction in both senses of the direction indicated by the arrows 36.
Thus, a clamping action will be set up between the top wall 26 and the inwardly turned lips or flanges 17 and 18 of the channel and between the half bottom walls 29 and 30 and the wall 14 of the channel.
Simultaneously, the cam action of the conical tip 35 on the flanges 31 and 32 will tend to move the half bottom walls and the adjacent portions of the side walls 27 and 28 in the directions of the arrows 37 and 38 thus exerting a clamping action between the side walls 27 and 28 of the clamping member and the side walls 15 and 16 of the channel.
From the preceding description, it can be readily seen that the clamping member of the present invention provides for an extremely firm, rigid and secure method of joining the frame elements 10 of the picture frame illustrated in Fig. 1.
Turning now to Figs. 6, 7 and 8, a slightly modified 11'784;~9 .~ 5 versio~ of the clamping bracket is disclsoed.
In Fig. 6, it will be seen that the flanges 31 and 32 providing the cam surfaces are absent, and, instead, the spaced, opposed, facing surfaces are constituted simply by the inner edges of the half bottom walls. Conveniently, these inner eages are provided with spaced, parallel serat-ions aligned along said edge surfaces and normal to the axis of the screw.
Referring specifically now to Fig. 6, the edge surfaces 50 are provided with serations 51 and the screw 52, instead of having a conical tip such as the conical tip 35 of Fig.
4, is provided with a tip that is a frustum of a cone 53, the frusto-conical surface being provided with screw threads 54.
Conveniently, these screw threads 54 may be of a finer pitch than the screw threads 55 on the shank of the screw.
Referring now to Fig. 7, it can be seen that as the screw 52 is rotated, the threads 54 on its frusto-conical tip will engage the serations 51 on the edge surfaces 50 of the half bottom walls 56 and 57 and will tend to lift them upwardly away from the ad~acent wall of the channel in the framing element 10 and, in doing so, will move them towards the base of the frusto-conical tip and will, thus, urge them apart to cause them tG expand in the direction of the arrows 58 to cause them to clamp tightly against the opposed side walls of the channel.
Ideally, the separation between the serated edges 51 and the diameter of the tip of the frusto-conical tip 53 of the screw 52 will be such that the blunt end 59 of the screw will engage or almost engage the opposing wall of the chan-nel at the same moment as the threads 54 on the frusto-conical tip engage the serations 51. Thus, a relatively small amount of further rGtation of the screw 52 will cause - 11'78~39 the threads 54 to engage the serations and drive the half bottom walls 56 and 57 apart and cause the blunt end of the screw 59 to engage the opposing wall of the channel so as to provide clamping within the channel in both senses of two mutually perpendicular directions in a manner similar to that explained with respect to Figure 4.
A feature that is common to both embodiments of the invention is best illustrated in Figs. 3 and 8. In Fig. 3, the side walls of the clamping brackets are provided with slots 60 which extend from the free edges of the side walls substantially to the top wall 26. The purpose of the slots 60 is to increase the flexibility of the side walls to permit the conical tip 35 of the screw 33 to act upon the flanges 31 and 32 in order to drive the half bottom walls apart to provide for clamping in the direction of the arrows 37 and 38.
Similarly, in the embodiment of Fig. 8, slots 61 are provided in the same location for precisely the same purpose.
Finally, with reference to Fig. 5, it can be seen that picture frames of a somewhat unconventional configuration can, of course, be produced using the clamping device of the present invention. In order to produce a picture frame hav-ing the configuration of Fig. 5, it is merely necessary that the angle between the arms of the clamping bracket 12 be chosen as to provide an appropriate angle between adjacent framing elements 10.
From the foreoing description, it is believed apparent that a clamping bracket has been disclosed which has the virtures of rigidity, strength and simplicity and which enable a picture frame to be securely constructed with no tools other than a screw driver and which enable the same picture frame to be readily disassembled for re-use as the occasion may require.
While preferred embodiments of the invention have been described in detail in the disclosure, and illustrated in the drawings, the scope o~ the invention is intended to be limited only by the appended claims.
The present invention relates to clamping brackets and, in particular, to clamping brackets of the type used to secure abutting channel members such as picture frame sect-ions in the desired angular relationship.
The picture frame disclosed and claimed in the applicant's prior Canadian Patent No. 881,000, dated September 14, 1971 has enjoyed very remarkable commercial success. That patent discloses a picture frame constructed of a plurality of channel section frame members which are secured together at their corners by clamping brackets. The picture frame of Canadian Patent 881,000 is easily assembled and disassembled and enables the frame to be dismantled and re-used as occas-ion may require.
The present invention provides an easily assembled and disassembed picture frame making use of extruded metal frame members of channel form secured together by brackets which provide for a joint of exceptional strength and rigidity.
Furthermore, the clamping bracket of the present invention will secure the corner joints of such a picture frame with-out damage to the extruded channel from elements and withoutdamage to the material being framed should the material extend right into the vertex of the frame members.
A preferred embodiment of the invention is disclosed in the accompanying drawings in which like reference numerals ~k il~7~ ~3~
_ -- 2 denote like parts and in which:
Fig. 1 is a general perspective view, partly exploded, showing a picture frame embodying clamping brackets of the present invention;
Fig. 2 is an exploded perspective view showing, in en-larged detail, the clamping bracket and its relationship to the extruded metal frame elements;
Fig. 3 is a perspective view of the clamping element of Fig. 2 taken from the opposite side;
Fig. 4 is a section view along line 4-4 of Fig. 2;
Fig. 5 is a view similar to Fig. 1 showing an alternat-ive configuration of picture frame that is possible with the present invention;
Fig. 6 is a view similar to Fig. 4 but showing a some-what modified version of the clamping bracket of the present invention;
Fig. 7 is a view similar to Fig. 6 showing the config-uration of the clamping bracket when in the tightened condit-ion, and Fig. 8 is a perspective view similar to Fig. 3 but on an enlarged scale showing the modified clamping bracket of Figs. 6 and 7.
Referring to Fig. 1, a picture frame can be seen to comprise four framing elements 10 secured toyether in end-to-end abutment to enclose a defined area 11 within which the picture or other article to be framed is mounted. The framing elements 10 are secured together at their corners by the clamping brackets 12 of the present invention which will be described in greater detail below.
In Fig. 2, an enlarged view of a typical corner of a picture frame such as that illustrated in Fig. 1 is illust-rated. The framing element 10 may be seen to comprise a metal extrusion formed to provide a channel 13 defined by a bottom wall 14, a pair of opposed side walls 15 and 16 and a pair of inwardly turned lips or flanges 17 and 18.
The channel 13 is of such a size and configuration that it snugly receives the clamping bracket 12.
The framing element 10 additionally includes a further flange 19 and an inwardly turned lip or flange 20 to provide a groove 21 within which the edge of the framing glass 22 and mat 23 may be received.
Referring now to Figs. 2, 3 and 4, the clamping bracket 12 of the present invention may be seen to comprise a pair of integral bracket arms 24 and 25 which lie at an angle to each other equal to the desired angle between adjacent frame or channel members. In the embodiment illustrated in Figs.
1, 2 and 3, the arms 24 and 25 lie at 90 to each other.
Each bracket arm is provided with a top wall 26 (see Fig. 4), a pair of integral side walls 27 and 28 and (see Fig. 3)a pair of half bottom walls 29 and 30. The half bottom walls 29 and 30 are integral with the side walls and extend inwardly therefrom.
The inner edges of each pair of half bottom walls present spaced, opposed, facing surfaces which, in the embod-iment of Figs. 2, 3 and 4 are constituted by upwardly and outwardly inclined flanges 31 and 32 which present opposed cam surfaces. A screw 33 is threaded into a threaded apera-ture 34 in the top wall 26, the axis of the screw bisecting the space between the spaced, opposed, facing surfaces and, in the case of the embodiment of Figs. 2, 3 and 4, bisecting the angle between the opposed cam surfaces.
In operation, the clamping bracket as previously des-cribed provides for an extremely strong and rigid connection between adjacent framing elements 10.
.11'~4;~9 ~ - 4 In order to secure the two framing elements 10 together, the clamping bracket is inserted in the adjacent channel 13 of adjacent framing elements 10 which have previously been mitred at an appropriate angle (to provide a right angle joint in Fig. 2). The framing elements 10 are then moved together so as to provide a tight, neat and closed joint whereupon the screws 33 are turned to advance them into the clamping bracket.
Referring to Fig. 4, it will be seen that as the screw 33 is advanced towards the cam surfaces, the conical tip 35 with which the screw is provided will engage the cam surfaces of flanges 31 and 32. This engagement will produce a clamping action in both senses of two mutually perpendicular directions.
First, the screw advancing along its axis and engaging the flanges 31 and 32 will exert a force and a reaction in both senses of the direction indicated by the arrows 36.
Thus, a clamping action will be set up between the top wall 26 and the inwardly turned lips or flanges 17 and 18 of the channel and between the half bottom walls 29 and 30 and the wall 14 of the channel.
Simultaneously, the cam action of the conical tip 35 on the flanges 31 and 32 will tend to move the half bottom walls and the adjacent portions of the side walls 27 and 28 in the directions of the arrows 37 and 38 thus exerting a clamping action between the side walls 27 and 28 of the clamping member and the side walls 15 and 16 of the channel.
From the preceding description, it can be readily seen that the clamping member of the present invention provides for an extremely firm, rigid and secure method of joining the frame elements 10 of the picture frame illustrated in Fig. 1.
Turning now to Figs. 6, 7 and 8, a slightly modified 11'784;~9 .~ 5 versio~ of the clamping bracket is disclsoed.
In Fig. 6, it will be seen that the flanges 31 and 32 providing the cam surfaces are absent, and, instead, the spaced, opposed, facing surfaces are constituted simply by the inner edges of the half bottom walls. Conveniently, these inner eages are provided with spaced, parallel serat-ions aligned along said edge surfaces and normal to the axis of the screw.
Referring specifically now to Fig. 6, the edge surfaces 50 are provided with serations 51 and the screw 52, instead of having a conical tip such as the conical tip 35 of Fig.
4, is provided with a tip that is a frustum of a cone 53, the frusto-conical surface being provided with screw threads 54.
Conveniently, these screw threads 54 may be of a finer pitch than the screw threads 55 on the shank of the screw.
Referring now to Fig. 7, it can be seen that as the screw 52 is rotated, the threads 54 on its frusto-conical tip will engage the serations 51 on the edge surfaces 50 of the half bottom walls 56 and 57 and will tend to lift them upwardly away from the ad~acent wall of the channel in the framing element 10 and, in doing so, will move them towards the base of the frusto-conical tip and will, thus, urge them apart to cause them tG expand in the direction of the arrows 58 to cause them to clamp tightly against the opposed side walls of the channel.
Ideally, the separation between the serated edges 51 and the diameter of the tip of the frusto-conical tip 53 of the screw 52 will be such that the blunt end 59 of the screw will engage or almost engage the opposing wall of the chan-nel at the same moment as the threads 54 on the frusto-conical tip engage the serations 51. Thus, a relatively small amount of further rGtation of the screw 52 will cause - 11'78~39 the threads 54 to engage the serations and drive the half bottom walls 56 and 57 apart and cause the blunt end of the screw 59 to engage the opposing wall of the channel so as to provide clamping within the channel in both senses of two mutually perpendicular directions in a manner similar to that explained with respect to Figure 4.
A feature that is common to both embodiments of the invention is best illustrated in Figs. 3 and 8. In Fig. 3, the side walls of the clamping brackets are provided with slots 60 which extend from the free edges of the side walls substantially to the top wall 26. The purpose of the slots 60 is to increase the flexibility of the side walls to permit the conical tip 35 of the screw 33 to act upon the flanges 31 and 32 in order to drive the half bottom walls apart to provide for clamping in the direction of the arrows 37 and 38.
Similarly, in the embodiment of Fig. 8, slots 61 are provided in the same location for precisely the same purpose.
Finally, with reference to Fig. 5, it can be seen that picture frames of a somewhat unconventional configuration can, of course, be produced using the clamping device of the present invention. In order to produce a picture frame hav-ing the configuration of Fig. 5, it is merely necessary that the angle between the arms of the clamping bracket 12 be chosen as to provide an appropriate angle between adjacent framing elements 10.
From the foreoing description, it is believed apparent that a clamping bracket has been disclosed which has the virtures of rigidity, strength and simplicity and which enable a picture frame to be securely constructed with no tools other than a screw driver and which enable the same picture frame to be readily disassembled for re-use as the occasion may require.
While preferred embodiments of the invention have been described in detail in the disclosure, and illustrated in the drawings, the scope o~ the invention is intended to be limited only by the appended claims.
Claims (16)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A clamping bracket for securing two abutting channel mem-bers together comprising:
(a) a pair of integral bracket arms lying at an angle to each other equal to the desired angle between adjacent channel members;
(b) each bracket arm having a top wall, a pair of integral side walls and a pair of half bottom walls, each half bottom wall integral with and extending inwardly from a side wall;
(c) the inner edges of each pair of half bottom walls present-ing spaced, opposed, facing surfaces, and (d) a screw threaded into a threaded aperture in the top wall, the axis of the screw bisecting the space between the opposed, fac-ing surfaces.
(a) a pair of integral bracket arms lying at an angle to each other equal to the desired angle between adjacent channel members;
(b) each bracket arm having a top wall, a pair of integral side walls and a pair of half bottom walls, each half bottom wall integral with and extending inwardly from a side wall;
(c) the inner edges of each pair of half bottom walls present-ing spaced, opposed, facing surfaces, and (d) a screw threaded into a threaded aperture in the top wall, the axis of the screw bisecting the space between the opposed, fac-ing surfaces.
2. A clamping bracket as claimed in claim 1 wherein the spaced, opposed, facing surfaces of the inner edges of the half bot-tom walls comprise upwardly and outwardly extending flanges forming opposed cam surfaces and wherein the axis of the screw bisects the angle between the opposed cam surfaces.
3. A clamping bracket as claimed in claim 1 wherein the spaced, opposed facing surfaces of the inner edges of the half bot-tom walls comprise the edge surfaces of the half bottom walls, each of said edge surfaces having at least one thread engaging lip align-ed along said edge surfaces and normal to the axis of said screw and wherein said screw has an axis bisecting the space between said edge surfaces.
4. A clamping bracket as claimed in claim 1, 2 or 3 wherein the bracket is formed of a one-piece sheet metal stamping.
5. A clamping bracket as claimed in claim 1, 2 or 3 wherein the pair of integral arms lie at an angle of 90° to one another,
6. A clamping bracket as claimed in claim 1, 2 or 3 wherein each of the pair of integral side walls on each bracket arm is provided with a slot extending from its free edge towards the top wall and each half bottom wall extends only from the slot to the end of the arm remote from the angle between the arms.
7. A clamping bracket as claimed in claim 2 wherein the screw has a conical tip presenting a conical cam surface to cooperate with and urge apart the cam surfaces on the half bottom walls.
8. A clamping bracket as claimed in claim 3 wherein the screw has a tip that is a frustum of a cone which is provided with screw threads to engage the thread engaging lip on the edge surfaces of the half bottom wall, the base diameter of the frusto-conical tip being greater than the separation between the edge surfaces.
9. A picture frame consisting of a plurality of channel members in end to end abutment to enclose a defined area, a clamping bracket having a pair of integral bracket arms each arm extending into the channel section of adjacent abutting channel members, each bracket arm having a top wall, a pair of integral side walls and a pair of half bottom walls, each half bottom wall integral with and extending inwardly from a side wall, the inner edges of each pair of half bottom walls presenting spaced, opposed, facing surfaces, and a screw threaded into a threaded aperture in the top wall, the axis of the screw bisecting the space between the opposed, facing surfaces.
10. A picture frame as claimed in claim 9, wherein the spaced, opposed facing surfaces of the inner edges of the half bottom walls comprise upwardly and outwardly extending flanges for forming opposed cam surfaces and the axis of the screw bisects the angle between the opposed cam surfaces.
11. A picture frame as claimed in claim 9, wherein the spaced, opposed facing surfaces of the inner edges of the half bottom comprise the edge surfaces of the half bottom walls, each of said edge surfaces having at least one thread engaging lip aligned along said edge surfaces normal to the axis of said screw and said screw has an axis bisecting the space between said edge surfaces.
12. A picture frame as claimed in claim 8, 9 or 10 wherein each clamping bracket is formed of a one-piece sheet metal stamping.
13. A picture frame as claimed in claim 8, 9 or 10 wherein the channel members and the bracket arms lie at an angle of 90° to one another.
14. A picture frame as claimed in claim 8, 9 or 10, wherein each of the pair of integral side walls on each bracket is provided with a slot extending from its free edge towards the top wall and each half bottom wall extends only from the slot to the end of the arm remote from the angle between the arms.
15. A picture frame as claimed in claim 8, 9 or 10 wherein the screw has a conical tip presenting a conical cam surface to cooperate with and urge apart the cam surfaces of the half bottom walls.
16. A picture frame as claimed in claim 11 wherein the screw has a tip that is a frustum of a cone which is provided with screw threads to engage the thread engaging lip on the edge surfaces of the half bottom wall, the base diameter of the frusto-conical tip being greater than the separation between the edge surfaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000394092A CA1178439A (en) | 1982-01-13 | 1982-01-13 | Clamping bracket for picture frames |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000394092A CA1178439A (en) | 1982-01-13 | 1982-01-13 | Clamping bracket for picture frames |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1178439A true CA1178439A (en) | 1984-11-27 |
Family
ID=4121814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000394092A Expired CA1178439A (en) | 1982-01-13 | 1982-01-13 | Clamping bracket for picture frames |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1178439A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5384978A (en) * | 1993-03-22 | 1995-01-31 | The Fletcher-Terry Company | Corner clamp assembly |
| US5423626A (en) * | 1993-03-22 | 1995-06-13 | The Fletcher-Terry Company | Clamping assembly |
-
1982
- 1982-01-13 CA CA000394092A patent/CA1178439A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5384978A (en) * | 1993-03-22 | 1995-01-31 | The Fletcher-Terry Company | Corner clamp assembly |
| US5423626A (en) * | 1993-03-22 | 1995-06-13 | The Fletcher-Terry Company | Clamping assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEC | Expiry (correction) | ||
| MKEX | Expiry |