CA1293116C - Sheathed cutting apparatus and method - Google Patents
Sheathed cutting apparatus and methodInfo
- Publication number
- CA1293116C CA1293116C CA000582061A CA582061A CA1293116C CA 1293116 C CA1293116 C CA 1293116C CA 000582061 A CA000582061 A CA 000582061A CA 582061 A CA582061 A CA 582061A CA 1293116 C CA1293116 C CA 1293116C
- Authority
- CA
- Canada
- Prior art keywords
- transmission member
- power transmission
- sheath
- cutting
- window
- 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 - Lifetime
Links
- 238000005520 cutting process Methods 0.000 title claims abstract description 78
- 238000000034 method Methods 0.000 title claims abstract description 8
- 230000005540 biological transmission Effects 0.000 claims abstract description 38
- 239000000463 material Substances 0.000 claims description 8
- 238000003780 insertion Methods 0.000 claims 1
- 230000037431 insertion Effects 0.000 claims 1
- 230000007246 mechanism Effects 0.000 abstract description 4
- 238000000465 moulding Methods 0.000 abstract description 4
- 229920002635 polyurethane Polymers 0.000 abstract description 2
- 239000004814 polyurethane Substances 0.000 abstract description 2
- 230000001681 protective effect Effects 0.000 abstract 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 7
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- 230000001012 protector Effects 0.000 description 2
- 241000282327 Felis silvestris Species 0.000 description 1
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 235000021189 garnishes Nutrition 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000010137 moulding (plastic) Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
- B60J1/00—Windows; Windscreens; Accessories therefor
- B60J1/02—Windows; Windscreens; Accessories therefor arranged at the vehicle front, e.g. structure of the glazing, mounting of the glazing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
- B26B7/00—Hand knives with reciprocating motor-driven blades
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Knives (AREA)
Abstract
SHEATHED CUTTING APPARATUS AND METHOD
ABSTRACT OF THE DISCLOSURE
A cutting mechanism attachable to a remote power source and enclosed within a rigid semi-curved sheath. The sheathed cutting member of the invention is provided with a flexible power transmission member for connection to a remote power source. The flexible power transmission member is comprised of a two-ended blade, one end of which is connected to the power source and the other end of which is capable of acquiring a sharp edge. Utilizing a rigid slightly curved protective sheath, the blade may be introduced past the dash moldings and garnishings in a vehicle from the inside of the vehicle next to the interior window or windshield so that the cutting blade alone is brought into contact with the polyurethane seal. Thus, the seal is quickly and safely severed without breaking the windshield.
ABSTRACT OF THE DISCLOSURE
A cutting mechanism attachable to a remote power source and enclosed within a rigid semi-curved sheath. The sheathed cutting member of the invention is provided with a flexible power transmission member for connection to a remote power source. The flexible power transmission member is comprised of a two-ended blade, one end of which is connected to the power source and the other end of which is capable of acquiring a sharp edge. Utilizing a rigid slightly curved protective sheath, the blade may be introduced past the dash moldings and garnishings in a vehicle from the inside of the vehicle next to the interior window or windshield so that the cutting blade alone is brought into contact with the polyurethane seal. Thus, the seal is quickly and safely severed without breaking the windshield.
Description
SHEATHED CUTTING APPARATUS AND METHOD
BACKGROUN~ OF THE INVENTION
This invention relates to an improved sheathed cutting means for cutting seals around windows in vehicles.
Both manual and automatically driven cutting mechanisms have been known in the art for quite some time. Most windshields and windows placed in vehicles are sealed by means of a urethane seal. When it is desired to remove and/or replace such windows, a variety of cutting mechanisms known in the art are employed. Such a mechanism is the "Fein AStlxe 636-5 Special Cutter" sold by Fein Power Tools, Inc. of Pittsburg, PA. This device oscillates from right to left without any up and down movemPnt. A "wild cat knife and blade pneumatic oscillating tool" is produced by C. R.
Laurence ~o., Inc. These tools must urge the blade of the device around the bottom edge of the windshield in order to cut the urethane underneath the windshield. Often the urethane is too far away for blades to reach. Further, at the bottom corners o~ the windshield, the fenders of the automobile inhibit the use of existing devices. Further, panels covering the bottom of the windshield must be removed, and chrome moldings or other combination chrome and plastic moldings will not allow the blade to reach completely around the windshield. Each of these tools is deslgned to be utilized from the outside of the windshleld 3~
with the blade reachiny underneath the lip of the windshield in order to cut the urethane. Thus, the operator's ability to control the blade is limited from the outside of the car and, as a result, interior moldings are often damaged.
Additional damage is caused by existing devices because of rigid blades which are incapable of conforming to the curvature of the windshield as it cuts through the urethane.
Further, exposed blade portions of existing devices unintentionally damage other parts of the vehicle.
SHORT STATEMENT OF THE INVENTION
Accordingly, the sheathed cutting apparatus of the present invention includes a power source, portable or otherwise, to which one end of a flexible cutting blade is attached. The opposite end of the blade is sharpened for cutting purposes. A rigid, slightly curved blade sheath is further attached to the power source and conformed to just cover the blade. There is an opening in the tip o~ the rigid sheath through which a portion o~ the cutting blade protrudes, when driven by the power source for cutting, so that the cutting blade is exposed only where cutting is needed. Further, a mounting is provided to which the shPath may be easily attached and removed. The mounting and sheath may then be attached to the power source and removed at will. A variety of lengths of sheaths and cutting blades are provided.
~;.
3~
The invention in one broad aspect provides a method for cut-ting the seal positioned around a vehicle window between the inside surface of the window and the vehicle structure. The method comprises the steps of providing a flexible elongated power transmission member having a first end and a second end, the second end including a cutting portion adapted for cutting the seal between the window and the vehicle structure, completely encasing the power transmission member with a slightly curved sheath over substantially its entire length, the sheath having an open end through which the cutting portion of the power transmission member is adapted to extend a desired cutting distance, inserting the open end of the sheath, along with the substantially covered power, transmission member into the space between the inner surface of the window and the vehicle structure to the seal and reciprocating the power transmission member in the sheath so that the cutting portion of power transmission member reciprocates back and forth out of the open end of the sheath to the desired cutting distance to cut the seal without substantially damaging the vehicle structure adjacent the window.
Another aspect of the invention as claimed provides a cutting apparatus for cutting the seal positioned around a vehicle window between the surface of the window and the vehicle struc~ure, the cutting apparatus including an elongated and flexible power transmission member, and power means connected to a first 3~
end of the power transmission member for reciprocating the power transmission member along its longitudinal axis. A cutting por-tion is on a second end of the power transmission member and is adapted for cutting the seal material between the window and the vehicle structure.
An elongated sheath is removably a-ttached at one end to the power means and is adapted to cover the power transmission member along substantially its entire length. There is an open sheath end, opposite the end removably attached to the power rneans, through which the cutting portion of the power transmission member is adapted to extend a desired cutting distance as the power means reciprocates the power transmission member, the open sheath end being adapted to be positioned adjacent to the seal material so as to prevent the cutting portion from cutting through the seal material more than the desired cutting distance.
:11.~3~
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. l is a side view of a preferred embodiment of the sheathed cutting means of the present invention attached to a portable power source.
FIG. 2 is a front view of the slightly curved sheath attached to a mounting means with the blade located within the sheath.
FIG. 3 is a side view of the invention shown on the interior of a vehicle windshield in position for cutting a urethane seal.
FIG. 4 is a side view of three embodiments of the flexible cutting blade.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
In FIGS. 1 and 2, the sheathed cutting apparatus 10 includes power source 12 shown as a portable jig saw, but which may be of any fixed or portable power source known in the art. The primary requirement of the power source 12 is that it have a connection 14. Power transmission member 16, in the`form of a flexible thin cutting blade 18, has a connection end 20. Connection end 20 is designed, in a manner commonly known in the art, to connect with power source connection 14 in a removably attachable manner.
Cutting blade 18 also has the capability of being sharpened along its length. In the present invention, cutting blade 18 is sharpened only along the tip 22.
3~ ~
A rigid sheath 24 is conformed to just fit around cutting blade 18 so that cutting blade 18 can move back and forth within sheath 24. Sheath 24 may be any rigid material such as stainless steel, aluminum, PVC, or the like. The purpose of rigid sheath 24 is to serve as a guide and protector for cutting blade 1~. It further protects other portions of the vehicle from contact with the moving blade 18.
Rigid sheath 24 (FIG. 2) has a slight curvature along its length from top ~6 to bottom 28. This curvature is designed to allow power source 12 to be operated away from the windshield while work is being conducted and yet at the same time enable cutting blade 18 to be directed in a direction conformable to the curvature of the windshield.
Removably attachable mounting 30 is designed to securely hold rigid sheath 24 in position by means of attachment 3Z. Sheath 24 and mounting 30 thus form a unified whole which may be transported together and placed on a power source 12 as desired. Once sheath 24 is attachad to mounting 30, mounting 30 in turn may be mounted to power source 12 by means of attachments 34.
FIG. 3 shows a side view of a vehicle windshield 36 with exterior side 38 and interior side 40 with apparatus 10 in use, with seal 42, commonly of polyurethane, connecting windshield 36 with the interior dash 44 of a vehicle. The top 46 of w:indshield 36, and bottom 48, are also shown. As ~ 2~
shown in FIG. 3, apparatus 10 is utilized from the interior of a vehicle. In use, the portable power supply power source 12 is capable of being held away from the interior side 40 of windshield 36 and, because of the curvature in rigid sheath 24, flexible thin cutting blade 18 can still be brought into proper position to cut seal 42.
FIG. 4A is a view of cutting blade 18 showing the cutting blade tip 22 formed with rip teeth on both sides of the blade.
FIG. 4B shows cutting blade 18 with a knife edge around the tip and FIG. 4C shows cutting blade 18 with saw teeth on one side only.
Utilizing cutting apparatus 10 from the inside eliminates the necessity of removing parts from the car in order to bring the cutting blade 18 into cutting position on seal 42. A variety of similar blades of various lengths 18 may be utilizsd but in general the blades 18 are made, in the preferred embodiment, of 0.020 inch thick, .50 inch wide, mild steel. Any suitable substitute which is firm yet flexible and capable of acquiring a sharp edge may be used.
The blades 18 are sharpened only on the part of power transmission member 16 that extends out opening 17 of sheath 24. Sheath 24, in the preferred smbodiment, is produced in four inch, eight inch and fourteen inch sections. The blades 18 are made in different lengths so that they will ~1.;2~3~
extend out of each sheath 24 from 1/4 inch to 1 1/2 inches depending on the job.
By use of sheathed cutting apparatus 10, automobile windshields may be removed after cutting urethane seal 42 from the inside of the vehicle, without the necessity of removing the dash or any other parts of the vehicle, and without breaking the glass.
Blade 18 has most of its length contained within sheath 24. The advantage of sheath 24 is that it serves as a guide for blade 18 and a protector of dash 44 and any other parts of the vehicle with which the blade 18 might come in contact. The tip 22 of blade 18, reciprocating in and out of the end of sheath 24, is the only portion of the blade that comes in contact with seal 42.
The total width of sheath 2~ and blade 18 is less than 1/8 inch. This very narrow width allows sheath 24 with blade 18 to go between the windshield 36 and dash 44.
Further, the narrowness of sheath 24 and blade 18 enables them to slide easily under any garnish moldings of the vehicle.
~..
BACKGROUN~ OF THE INVENTION
This invention relates to an improved sheathed cutting means for cutting seals around windows in vehicles.
Both manual and automatically driven cutting mechanisms have been known in the art for quite some time. Most windshields and windows placed in vehicles are sealed by means of a urethane seal. When it is desired to remove and/or replace such windows, a variety of cutting mechanisms known in the art are employed. Such a mechanism is the "Fein AStlxe 636-5 Special Cutter" sold by Fein Power Tools, Inc. of Pittsburg, PA. This device oscillates from right to left without any up and down movemPnt. A "wild cat knife and blade pneumatic oscillating tool" is produced by C. R.
Laurence ~o., Inc. These tools must urge the blade of the device around the bottom edge of the windshield in order to cut the urethane underneath the windshield. Often the urethane is too far away for blades to reach. Further, at the bottom corners o~ the windshield, the fenders of the automobile inhibit the use of existing devices. Further, panels covering the bottom of the windshield must be removed, and chrome moldings or other combination chrome and plastic moldings will not allow the blade to reach completely around the windshield. Each of these tools is deslgned to be utilized from the outside of the windshleld 3~
with the blade reachiny underneath the lip of the windshield in order to cut the urethane. Thus, the operator's ability to control the blade is limited from the outside of the car and, as a result, interior moldings are often damaged.
Additional damage is caused by existing devices because of rigid blades which are incapable of conforming to the curvature of the windshield as it cuts through the urethane.
Further, exposed blade portions of existing devices unintentionally damage other parts of the vehicle.
SHORT STATEMENT OF THE INVENTION
Accordingly, the sheathed cutting apparatus of the present invention includes a power source, portable or otherwise, to which one end of a flexible cutting blade is attached. The opposite end of the blade is sharpened for cutting purposes. A rigid, slightly curved blade sheath is further attached to the power source and conformed to just cover the blade. There is an opening in the tip o~ the rigid sheath through which a portion o~ the cutting blade protrudes, when driven by the power source for cutting, so that the cutting blade is exposed only where cutting is needed. Further, a mounting is provided to which the shPath may be easily attached and removed. The mounting and sheath may then be attached to the power source and removed at will. A variety of lengths of sheaths and cutting blades are provided.
~;.
3~
The invention in one broad aspect provides a method for cut-ting the seal positioned around a vehicle window between the inside surface of the window and the vehicle structure. The method comprises the steps of providing a flexible elongated power transmission member having a first end and a second end, the second end including a cutting portion adapted for cutting the seal between the window and the vehicle structure, completely encasing the power transmission member with a slightly curved sheath over substantially its entire length, the sheath having an open end through which the cutting portion of the power transmission member is adapted to extend a desired cutting distance, inserting the open end of the sheath, along with the substantially covered power, transmission member into the space between the inner surface of the window and the vehicle structure to the seal and reciprocating the power transmission member in the sheath so that the cutting portion of power transmission member reciprocates back and forth out of the open end of the sheath to the desired cutting distance to cut the seal without substantially damaging the vehicle structure adjacent the window.
Another aspect of the invention as claimed provides a cutting apparatus for cutting the seal positioned around a vehicle window between the surface of the window and the vehicle struc~ure, the cutting apparatus including an elongated and flexible power transmission member, and power means connected to a first 3~
end of the power transmission member for reciprocating the power transmission member along its longitudinal axis. A cutting por-tion is on a second end of the power transmission member and is adapted for cutting the seal material between the window and the vehicle structure.
An elongated sheath is removably a-ttached at one end to the power means and is adapted to cover the power transmission member along substantially its entire length. There is an open sheath end, opposite the end removably attached to the power rneans, through which the cutting portion of the power transmission member is adapted to extend a desired cutting distance as the power means reciprocates the power transmission member, the open sheath end being adapted to be positioned adjacent to the seal material so as to prevent the cutting portion from cutting through the seal material more than the desired cutting distance.
:11.~3~
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. l is a side view of a preferred embodiment of the sheathed cutting means of the present invention attached to a portable power source.
FIG. 2 is a front view of the slightly curved sheath attached to a mounting means with the blade located within the sheath.
FIG. 3 is a side view of the invention shown on the interior of a vehicle windshield in position for cutting a urethane seal.
FIG. 4 is a side view of three embodiments of the flexible cutting blade.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
In FIGS. 1 and 2, the sheathed cutting apparatus 10 includes power source 12 shown as a portable jig saw, but which may be of any fixed or portable power source known in the art. The primary requirement of the power source 12 is that it have a connection 14. Power transmission member 16, in the`form of a flexible thin cutting blade 18, has a connection end 20. Connection end 20 is designed, in a manner commonly known in the art, to connect with power source connection 14 in a removably attachable manner.
Cutting blade 18 also has the capability of being sharpened along its length. In the present invention, cutting blade 18 is sharpened only along the tip 22.
3~ ~
A rigid sheath 24 is conformed to just fit around cutting blade 18 so that cutting blade 18 can move back and forth within sheath 24. Sheath 24 may be any rigid material such as stainless steel, aluminum, PVC, or the like. The purpose of rigid sheath 24 is to serve as a guide and protector for cutting blade 1~. It further protects other portions of the vehicle from contact with the moving blade 18.
Rigid sheath 24 (FIG. 2) has a slight curvature along its length from top ~6 to bottom 28. This curvature is designed to allow power source 12 to be operated away from the windshield while work is being conducted and yet at the same time enable cutting blade 18 to be directed in a direction conformable to the curvature of the windshield.
Removably attachable mounting 30 is designed to securely hold rigid sheath 24 in position by means of attachment 3Z. Sheath 24 and mounting 30 thus form a unified whole which may be transported together and placed on a power source 12 as desired. Once sheath 24 is attachad to mounting 30, mounting 30 in turn may be mounted to power source 12 by means of attachments 34.
FIG. 3 shows a side view of a vehicle windshield 36 with exterior side 38 and interior side 40 with apparatus 10 in use, with seal 42, commonly of polyurethane, connecting windshield 36 with the interior dash 44 of a vehicle. The top 46 of w:indshield 36, and bottom 48, are also shown. As ~ 2~
shown in FIG. 3, apparatus 10 is utilized from the interior of a vehicle. In use, the portable power supply power source 12 is capable of being held away from the interior side 40 of windshield 36 and, because of the curvature in rigid sheath 24, flexible thin cutting blade 18 can still be brought into proper position to cut seal 42.
FIG. 4A is a view of cutting blade 18 showing the cutting blade tip 22 formed with rip teeth on both sides of the blade.
FIG. 4B shows cutting blade 18 with a knife edge around the tip and FIG. 4C shows cutting blade 18 with saw teeth on one side only.
Utilizing cutting apparatus 10 from the inside eliminates the necessity of removing parts from the car in order to bring the cutting blade 18 into cutting position on seal 42. A variety of similar blades of various lengths 18 may be utilizsd but in general the blades 18 are made, in the preferred embodiment, of 0.020 inch thick, .50 inch wide, mild steel. Any suitable substitute which is firm yet flexible and capable of acquiring a sharp edge may be used.
The blades 18 are sharpened only on the part of power transmission member 16 that extends out opening 17 of sheath 24. Sheath 24, in the preferred smbodiment, is produced in four inch, eight inch and fourteen inch sections. The blades 18 are made in different lengths so that they will ~1.;2~3~
extend out of each sheath 24 from 1/4 inch to 1 1/2 inches depending on the job.
By use of sheathed cutting apparatus 10, automobile windshields may be removed after cutting urethane seal 42 from the inside of the vehicle, without the necessity of removing the dash or any other parts of the vehicle, and without breaking the glass.
Blade 18 has most of its length contained within sheath 24. The advantage of sheath 24 is that it serves as a guide for blade 18 and a protector of dash 44 and any other parts of the vehicle with which the blade 18 might come in contact. The tip 22 of blade 18, reciprocating in and out of the end of sheath 24, is the only portion of the blade that comes in contact with seal 42.
The total width of sheath 2~ and blade 18 is less than 1/8 inch. This very narrow width allows sheath 24 with blade 18 to go between the windshield 36 and dash 44.
Further, the narrowness of sheath 24 and blade 18 enables them to slide easily under any garnish moldings of the vehicle.
~..
Claims (8)
1. A method for cutting the seal positioned around a vehicle window between the inside surface of the window and the vehicle structure, said method comprising the steps of:
(a) providing a flexible elongated power transmission member having a first end and a second end, the second end including a cutting portion adapted for cutting the seal between the window and the vehicle structure;
(b) completely encasing the power transmission member with a slightly curved sheath over substantially its entire length, the sheath having an open end through which the cutting portion of the power transmission member is adapted to extend a desired cutting distance;
(c) inserting the open end of the sheath, along with the substantially covered power transmission member into the space between the inner surface of the window and the vehicle structure to the seal; and (d) reciprocating the power transmission member in the sheath so that the cutting portion of power transmission member reciprocates back and forth out of the open end of the sheath to the desired cutting distance to cut the seal without substantially damaging the vehicle structure adjacent the window.
(a) providing a flexible elongated power transmission member having a first end and a second end, the second end including a cutting portion adapted for cutting the seal between the window and the vehicle structure;
(b) completely encasing the power transmission member with a slightly curved sheath over substantially its entire length, the sheath having an open end through which the cutting portion of the power transmission member is adapted to extend a desired cutting distance;
(c) inserting the open end of the sheath, along with the substantially covered power transmission member into the space between the inner surface of the window and the vehicle structure to the seal; and (d) reciprocating the power transmission member in the sheath so that the cutting portion of power transmission member reciprocates back and forth out of the open end of the sheath to the desired cutting distance to cut the seal without substantially damaging the vehicle structure adjacent the window.
2. The method of claim 1 further comprising the steps of:
(a) removably attaching the first end of the power transmission member to a power source for reciprocating the power transmission member;
(b) removably attaching a sheath to the power source; and (c) removably attaching the sheath to the sheath mounting over the power transmission member.
(a) removably attaching the first end of the power transmission member to a power source for reciprocating the power transmission member;
(b) removably attaching a sheath to the power source; and (c) removably attaching the sheath to the sheath mounting over the power transmission member.
3. A cutting apparatus for cutting the seal positioned around a vehicle window between the surface of the window and the vehicle structure, said cutting apparatus comprising:
(a) an elongated and flexible power transmission member;
(b) power means connected to a first end of the power transmission member for reciprocating the power transmission member along its longitudinal axis;
(c) a cutting portion on a second end of the power transmission member adapted for cutting the seal material between the window and the vehicle structure;
(d) an elongated sheath removably attached at one end to the power means and adapted to cover the power transmission member along substantially its entire length; and (e) an open sheath end, opposite the end removably attached to the power means, through which the cutting portion of the power transmission member is adapted to extend a desired cutting distance as the power means reciprocates the power transmission member, the open sheath end being adapted to be positioned adjacent to the seal material so as to prevent the cutting portion from cutting through the seal material more than the desired cutting distance.
(a) an elongated and flexible power transmission member;
(b) power means connected to a first end of the power transmission member for reciprocating the power transmission member along its longitudinal axis;
(c) a cutting portion on a second end of the power transmission member adapted for cutting the seal material between the window and the vehicle structure;
(d) an elongated sheath removably attached at one end to the power means and adapted to cover the power transmission member along substantially its entire length; and (e) an open sheath end, opposite the end removably attached to the power means, through which the cutting portion of the power transmission member is adapted to extend a desired cutting distance as the power means reciprocates the power transmission member, the open sheath end being adapted to be positioned adjacent to the seal material so as to prevent the cutting portion from cutting through the seal material more than the desired cutting distance.
4. The cutting apparatus of claim 3 wherein the sheath is adapted to fully enclose the flexible power transmission member along substantially its entire length.
5. The cutting apparatus of claim 3 wherein the sheath is curved so as to conform substantially to the curvature of the vehicle window and to enable the power means to be spaced from the window surface when the open sheath end is inserted to the seal.
6. The cutting apparatus of claim 3 further comprising mounting means removably attached to the power means for removably attaching the sheath to the power means over the power transmission member.
7. The cutting apparatus of claim 3 wherein the power transmission member further comprises:
(a) a flat piece of material capable of acquiring a sharp edge and being adapted to flex as it is reciprocated through the sheath;
(b) a connector at the first end adapted to removably attach the first end to the power means: and (c) a sharp edge on the cutting portion of the power transmission member.
(a) a flat piece of material capable of acquiring a sharp edge and being adapted to flex as it is reciprocated through the sheath;
(b) a connector at the first end adapted to removably attach the first end to the power means: and (c) a sharp edge on the cutting portion of the power transmission member.
8. The apparatus of claim 7 wherein the sheath is substantially flat with a passage therethrough to just accommodate insertion and reciprocation of the flat power transmission member.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US11806087A | 1987-11-09 | 1987-11-09 | |
| US118,060 | 1987-11-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1293116C true CA1293116C (en) | 1991-12-17 |
Family
ID=22376292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000582061A Expired - Lifetime CA1293116C (en) | 1987-11-09 | 1988-10-31 | Sheathed cutting apparatus and method |
Country Status (8)
| Country | Link |
|---|---|
| JP (1) | JPH01129875A (en) |
| AU (1) | AU610655B2 (en) |
| CA (1) | CA1293116C (en) |
| DE (1) | DE3838044C2 (en) |
| FR (1) | FR2622829B3 (en) |
| GB (1) | GB2212090B (en) |
| IT (1) | IT1235142B (en) |
| NL (1) | NL191382C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4222250C2 (en) * | 1992-07-07 | 1995-04-13 | Berthold Thieme | Cutting device for severing glass panes glued to motor vehicle body parts |
| EP0969557B1 (en) | 1997-03-18 | 2006-06-14 | Rohm Co., Ltd. | Connector |
| DE19938115A1 (en) * | 1999-08-12 | 2001-02-22 | Fein C & E | Cutting knife |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3640280A (en) * | 1969-11-26 | 1972-02-08 | Daniel R Slanker | Power-driven reciprocating bone surgery instrument |
| US4395825A (en) * | 1980-07-24 | 1983-08-02 | Lock Trevor S | Device for removing vehicle windscreens |
| DE3210212A1 (en) * | 1982-03-19 | 1983-05-19 | Daimler-Benz Ag, 7000 Stuttgart | Cutting tool for removing bonded-in window panes |
-
1988
- 1988-09-16 JP JP63230213A patent/JPH01129875A/en active Granted
- 1988-10-31 CA CA000582061A patent/CA1293116C/en not_active Expired - Lifetime
- 1988-11-04 NL NL8802713A patent/NL191382C/en not_active IP Right Cessation
- 1988-11-08 GB GB8826099A patent/GB2212090B/en not_active Expired - Lifetime
- 1988-11-08 FR FR888814584A patent/FR2622829B3/en not_active Expired - Lifetime
- 1988-11-08 IT IT8848531A patent/IT1235142B/en active
- 1988-11-09 DE DE3838044A patent/DE3838044C2/en not_active Expired - Lifetime
- 1988-11-09 AU AU24950/88A patent/AU610655B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL191382B (en) | 1995-02-01 |
| JPH0468958B2 (en) | 1992-11-04 |
| IT8848531A0 (en) | 1988-11-08 |
| DE3838044C2 (en) | 1994-05-26 |
| JPH01129875A (en) | 1989-05-23 |
| AU2495088A (en) | 1989-05-11 |
| NL8802713A (en) | 1989-06-01 |
| FR2622829B3 (en) | 1990-03-16 |
| NL191382C (en) | 1995-07-03 |
| GB2212090B (en) | 1992-01-08 |
| AU610655B2 (en) | 1991-05-23 |
| FR2622829A1 (en) | 1989-05-12 |
| GB2212090A (en) | 1989-07-19 |
| IT1235142B (en) | 1992-06-22 |
| GB8826099D0 (en) | 1988-12-14 |
| DE3838044A1 (en) | 1989-05-18 |
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