CA1121578A - Door pin remover - Google Patents
Door pin removerInfo
- Publication number
- CA1121578A CA1121578A CA000351734A CA351734A CA1121578A CA 1121578 A CA1121578 A CA 1121578A CA 000351734 A CA000351734 A CA 000351734A CA 351734 A CA351734 A CA 351734A CA 1121578 A CA1121578 A CA 1121578A
- Authority
- CA
- Canada
- Prior art keywords
- stem
- head
- pin
- hinge
- edge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
- B25B27/04—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same inserting or withdrawing keys
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Percussive Tools And Related Accessories (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
A tool for use with a hammer to remove the pin from a door hinge. The tool comprises an elongated cylindrical stem of circular cross-section, of a diameter sufficiently small to clear the opening at the bottom of the hinge, if such opening is present and, the inner surfaces of the pin receptacle of the hinge. One end of the stem terminates in a flat surface normal to the longitudinal axis of the stem. A head to receive the blows from an impact means is secured in offset fashion to the stem at its other end. The terminal, blow receiving surface of the head is normal to the longitudinal axis of the stem. The head has a circumscribing edge, and the head is secured near a segment of its edge to the stem in such a manner that a portion of the edge of the head in that area does not overhang the cylindrical surface of the stem. The portion of the head opposite the stem may be provided with a wedge-like shape, pointing away from the stem, with a central part of the wedge extremity being cut away in somewhat concave fashion to be used to wedge under and lift up the cap of a pin in a door hinge without slipping. Such tool facilitates removal of door hinge pins and reduces the potential for damage to walls and parts of the door surrounding such hinge, when compared to prior methods and devices for removing such pins.
A tool for use with a hammer to remove the pin from a door hinge. The tool comprises an elongated cylindrical stem of circular cross-section, of a diameter sufficiently small to clear the opening at the bottom of the hinge, if such opening is present and, the inner surfaces of the pin receptacle of the hinge. One end of the stem terminates in a flat surface normal to the longitudinal axis of the stem. A head to receive the blows from an impact means is secured in offset fashion to the stem at its other end. The terminal, blow receiving surface of the head is normal to the longitudinal axis of the stem. The head has a circumscribing edge, and the head is secured near a segment of its edge to the stem in such a manner that a portion of the edge of the head in that area does not overhang the cylindrical surface of the stem. The portion of the head opposite the stem may be provided with a wedge-like shape, pointing away from the stem, with a central part of the wedge extremity being cut away in somewhat concave fashion to be used to wedge under and lift up the cap of a pin in a door hinge without slipping. Such tool facilitates removal of door hinge pins and reduces the potential for damage to walls and parts of the door surrounding such hinge, when compared to prior methods and devices for removing such pins.
Description
BACKGROUND OF THE INVENTION
This invent;on relates to a tool for removing a p;n from a door hinge, and more particularly relates to a hand tool, for use Witll a hammer or other impact means, to assist in or simplify the removal of door hinge pins from their hinges.
A door hinge normally has pins adapted to be removed to enable the door to be taken from its position on its h;nges. When the door is so removed, extra space is provided which may be useful for example when moving large appliances or pieces of furniture through the doorway. Often doors are removed for refinishing, repair or repainting. Also it may be desired to remove the hinge pins for lubrication. Heretofore, there have been few specialized tools developed to facilitate the task of removing pins from door hinge.
The end of a flat headed screw driver has often been used in the past, by wedging it between the cap at the top of the pin and the door hinge, hammering and prying the pin upwardly. Not only does the tip of the screw driver tend to slip, also the force of the screw driver is not concentrated centrally beneath the pin head, often resulting in bending of the pin particularly when the pin is rusted, wedged or seized in place in the pin receptacle of the hinge and must be forced for removal. Also long screw drivers are hard to work with on bottom hinge pins. AlternatiYely, a nail is often used to remove such pin, the nail being inserted through an opening frequently present at the bottom of the p:in receptacle of the hinge, and then being hammered upwardly to dislodge the pin. This creates problems, . ~
particularly when done in confined conditions, since the head of the nail or the hammer itself may scrap the door frame or surrounding wall unless great care is taken. A short nail may be required, for example on the bottom hinge, and may bend because short nails are usually not as strong. Nor is the pointed end of the nail ideally suited for this operation, since it may tend to dig into the base of the pin and may concentrate the impact from the hammer blow on the nail head off-centre on the bottom of the door hinge pin and thereby make removal of the pin more difficult. These problems may become magnified for the final pin to be removed from hinges holding 2 door, since the weight of the door is then concentrated on the hinge holding that final pin.
Carpenters, janitors, door repair specialists, painters, refinishers, movers and other trades persons or handymen who, from time-to-time, are required to remove doors would find a very inexpensive tool that would effectively, quickly and simply enable removal of door hinge pins preventing damage to walls to be of great benefit. It is the object of the present invention to provide such a tool.
SUMMARY O~_TYE IN~1ENTION
According to the present invention, a tool is provided, for use with a hammer or other such impact means, for removal of a pin from a door hinge. The tool comprises an elongated cylindrical stem of circular cross-section, of a diameter sufficiently small to clear the inner surfaces of the pln receptacle of the hinge. One end of the stem tenninates in a flat surface normal to the longitudinal axis of the stem. At the other end of the stem a head is secured in offset fashion to receive the blows from the impact means. The terminal surface of the head is normal to the longitudinal axis of the stem. The head has a circumscribing edge, and the head is secured near a segment of its edge to the stem in such a manner that the edge of the head in that area does not overhang to any appreciable extent the cylindrical surface of the stem.
In one embodiment of the invention, a portion of the tip of the stem, near its flat surface, is magnetic. This not only assists the holding of the stem in position in the opening at the bottom of the pin receptacle of a hinge to begin removal of the pin, but also, near the end of the operation, assists in holding the pin (if of a magnetic substance) in position until it can be hand removed, thereby preventing it from flying erratically out of its pin receptacle.
In another preferred embodiment, a portion of the head opposite the stem may be provided with a wedge-like shape preferably pointing away from the stem. A central part of the wedge extremity is cut away, in somewhat concave fashion, so that this portion of the head may be centred on and wedged under the cap of the pin to help lift it. This feature reduces the chances of the tool slipping from position and assists in concentrating blows in the middle of the pin head, as the pin is lifted. It also adds to the device's versa-tility, being useful in situations where the bottom of the door hinge does not provide a hole communicating with the hinge pin receptacle, .~
s~
i.e. where the stem could not be of assistance.
Such a tool facilitates removal of door hinge pins and reduces the potential for damage to walls and parts of the door surrounding such hinge, when compared to prior methods and devices for removing such pins.
BRIEF DESCRIPTION QF THE DRAWINGS
Other objects and advantages of the present invention will become apparent upon reading the following detailed description and upon referring to the drawings in which:
Figure 1 is a perspective view of an example embodiment of a pin removing device according to the present invention;
Figure 2 is a bottom plan view of the device of Figure l;
Figure 3 is a schematic view of the device of Figure 1 being used to remove a door hinge pin in different ways.
Similar features have been given similar reference numerals in these drawings.
While the invention will be described in connection with an example embodiment thereof, it will be understood that it is not intended to limit the invention to that embodiment. On the contrary it is intended to cover all alternatives, modifications and equivalents as may be included within the spirit and scope of the invention as defined by the appended claims.
57~
DETAILED DESCRIPTION OF THE INVENTION
Turning to Figure 1, there is shown a tool 2 comprising a stem 4 secured to a head 6, the tool being adapted to receive the blows from a hammer or other impact means for removal of hinge pin 8 from the pin receptacle of hinge 10. The head and stem may be of integral construction, or alternatively, the stem may, for example, be screwed into the head and thereby secured thereto.
The stem 4 is of circular cross-section and of cylindrical shape~ The tool is preferably made of a strong, durable, rust-proof material, which will resist deformation in operation. The diameter of the stem should be sufficiently small that it will clear the inner surface of tlle pin receptacle of the hinge when in use. Free end 12 is preferably a flat surface normal to the longitudinal axis of the stem. The blow receiving surface of head 6 is also preferably flat and normal to the longitudinal axis of the stem. Head 6 is secured to the stem 4 in offset fashion, so that edge 14, in the vicinity of the pin, as can be seen from Figure 2, does not overhang to any appreciable extent the corresponding cylindrical surface of the stem.
In this way, there is a surface adjacent the door frame or wall, along the length of the tool, which will reduce the chance of scrap-ing or gouging by the tool of the frame or wall during use of the tool. It will be understood that the length '1 of the stem of the tool should be about that of the pin receptacle of the hinge. In this way, especially at the bottom hinge, the tool will be suffi-ciently short to enable sufficient hammer swing to operate the tool, ,~
S71~
yet long enough to ensure tllat the pin is almost completely removed from the pin receptacle when the stem 4 is fully inserted 'n that pin receptacle and hinge is bearing against the under part of head 6.
As can be seen in Figures 1 and 3, the portion 16 of the edge of the head 6 remote from the portion of the head which is secured to stem 4 has a wedge-like shape. Central part 18 of extremity 16 is notched in concave fashion so that portion 16 of the edge of the head may be centered on and wedged under the cap of pin 8 to help lift it from its fully seated position in the pin receptacle of hinge 10 (see Figure 3). Once thus lifted, the pin may be pushed out the rest of the way by striking edge surface of the offset head on an angle (see Figure 3).
In one embodiment of the invention, the portion 20 of stem 4 near its free end 12 is magnetized. This feature assists in hold-ing the tool in position as the operation of removing a magnetically attracted hinge pin from a hinge has begun, and as well assists in preventing that hinge pin, when it has been almost removed, from flying off erratically, the pin being magnetically attracted by the magnetic portion of stem 4.
In another alternative embodiment, the stem may be shortened from that illustrated (e.g. to 1 - 1 inch) to permit use for starting the removal of pins. Its shortened stem will more readily resits bending over long periods of use. Its head 6 would be similar to that of the figures, but its portion 16 may have a sharper wedge-shape to assist the commencement of the removal operation.
In operation, it will be understood that the offset head 6 157~3 greatly facilitates hammering of the tool to remove a pin. The flat end 12 of stem 4 provides a relatively large bearing surface against the bottom of a hinge pin to be removed, which, unlike a nail, will not dig into the bottom of the pin when removing it and which will force the pin upwardly more evenly. In other words, the upward force exerted on the pin is thereby maximized. The head 6 provides a relatively large, easily accessible surface for striking with a hammer and is sufficiently large to provide a place for the user to grip the device during use. The use of such a tool as described herein obviates the potential damage caused to either the pin, hinge or surrounding frame and walls where a screw driver or nail is used for removal of the pin.
Thus there has been described a impact tool for removing pins from a door hinge that fully satisfies the objects, aims and advantages set forth above. While the invention has been described in conjunction with an example embodiment thereof, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art in light of the foregoing description.
Accordingly, it is intended to embrace all such alternatives, modifications and variations as fall within the spirit and broad scope of the appended claims.
This invent;on relates to a tool for removing a p;n from a door hinge, and more particularly relates to a hand tool, for use Witll a hammer or other impact means, to assist in or simplify the removal of door hinge pins from their hinges.
A door hinge normally has pins adapted to be removed to enable the door to be taken from its position on its h;nges. When the door is so removed, extra space is provided which may be useful for example when moving large appliances or pieces of furniture through the doorway. Often doors are removed for refinishing, repair or repainting. Also it may be desired to remove the hinge pins for lubrication. Heretofore, there have been few specialized tools developed to facilitate the task of removing pins from door hinge.
The end of a flat headed screw driver has often been used in the past, by wedging it between the cap at the top of the pin and the door hinge, hammering and prying the pin upwardly. Not only does the tip of the screw driver tend to slip, also the force of the screw driver is not concentrated centrally beneath the pin head, often resulting in bending of the pin particularly when the pin is rusted, wedged or seized in place in the pin receptacle of the hinge and must be forced for removal. Also long screw drivers are hard to work with on bottom hinge pins. AlternatiYely, a nail is often used to remove such pin, the nail being inserted through an opening frequently present at the bottom of the p:in receptacle of the hinge, and then being hammered upwardly to dislodge the pin. This creates problems, . ~
particularly when done in confined conditions, since the head of the nail or the hammer itself may scrap the door frame or surrounding wall unless great care is taken. A short nail may be required, for example on the bottom hinge, and may bend because short nails are usually not as strong. Nor is the pointed end of the nail ideally suited for this operation, since it may tend to dig into the base of the pin and may concentrate the impact from the hammer blow on the nail head off-centre on the bottom of the door hinge pin and thereby make removal of the pin more difficult. These problems may become magnified for the final pin to be removed from hinges holding 2 door, since the weight of the door is then concentrated on the hinge holding that final pin.
Carpenters, janitors, door repair specialists, painters, refinishers, movers and other trades persons or handymen who, from time-to-time, are required to remove doors would find a very inexpensive tool that would effectively, quickly and simply enable removal of door hinge pins preventing damage to walls to be of great benefit. It is the object of the present invention to provide such a tool.
SUMMARY O~_TYE IN~1ENTION
According to the present invention, a tool is provided, for use with a hammer or other such impact means, for removal of a pin from a door hinge. The tool comprises an elongated cylindrical stem of circular cross-section, of a diameter sufficiently small to clear the inner surfaces of the pln receptacle of the hinge. One end of the stem tenninates in a flat surface normal to the longitudinal axis of the stem. At the other end of the stem a head is secured in offset fashion to receive the blows from the impact means. The terminal surface of the head is normal to the longitudinal axis of the stem. The head has a circumscribing edge, and the head is secured near a segment of its edge to the stem in such a manner that the edge of the head in that area does not overhang to any appreciable extent the cylindrical surface of the stem.
In one embodiment of the invention, a portion of the tip of the stem, near its flat surface, is magnetic. This not only assists the holding of the stem in position in the opening at the bottom of the pin receptacle of a hinge to begin removal of the pin, but also, near the end of the operation, assists in holding the pin (if of a magnetic substance) in position until it can be hand removed, thereby preventing it from flying erratically out of its pin receptacle.
In another preferred embodiment, a portion of the head opposite the stem may be provided with a wedge-like shape preferably pointing away from the stem. A central part of the wedge extremity is cut away, in somewhat concave fashion, so that this portion of the head may be centred on and wedged under the cap of the pin to help lift it. This feature reduces the chances of the tool slipping from position and assists in concentrating blows in the middle of the pin head, as the pin is lifted. It also adds to the device's versa-tility, being useful in situations where the bottom of the door hinge does not provide a hole communicating with the hinge pin receptacle, .~
s~
i.e. where the stem could not be of assistance.
Such a tool facilitates removal of door hinge pins and reduces the potential for damage to walls and parts of the door surrounding such hinge, when compared to prior methods and devices for removing such pins.
BRIEF DESCRIPTION QF THE DRAWINGS
Other objects and advantages of the present invention will become apparent upon reading the following detailed description and upon referring to the drawings in which:
Figure 1 is a perspective view of an example embodiment of a pin removing device according to the present invention;
Figure 2 is a bottom plan view of the device of Figure l;
Figure 3 is a schematic view of the device of Figure 1 being used to remove a door hinge pin in different ways.
Similar features have been given similar reference numerals in these drawings.
While the invention will be described in connection with an example embodiment thereof, it will be understood that it is not intended to limit the invention to that embodiment. On the contrary it is intended to cover all alternatives, modifications and equivalents as may be included within the spirit and scope of the invention as defined by the appended claims.
57~
DETAILED DESCRIPTION OF THE INVENTION
Turning to Figure 1, there is shown a tool 2 comprising a stem 4 secured to a head 6, the tool being adapted to receive the blows from a hammer or other impact means for removal of hinge pin 8 from the pin receptacle of hinge 10. The head and stem may be of integral construction, or alternatively, the stem may, for example, be screwed into the head and thereby secured thereto.
The stem 4 is of circular cross-section and of cylindrical shape~ The tool is preferably made of a strong, durable, rust-proof material, which will resist deformation in operation. The diameter of the stem should be sufficiently small that it will clear the inner surface of tlle pin receptacle of the hinge when in use. Free end 12 is preferably a flat surface normal to the longitudinal axis of the stem. The blow receiving surface of head 6 is also preferably flat and normal to the longitudinal axis of the stem. Head 6 is secured to the stem 4 in offset fashion, so that edge 14, in the vicinity of the pin, as can be seen from Figure 2, does not overhang to any appreciable extent the corresponding cylindrical surface of the stem.
In this way, there is a surface adjacent the door frame or wall, along the length of the tool, which will reduce the chance of scrap-ing or gouging by the tool of the frame or wall during use of the tool. It will be understood that the length '1 of the stem of the tool should be about that of the pin receptacle of the hinge. In this way, especially at the bottom hinge, the tool will be suffi-ciently short to enable sufficient hammer swing to operate the tool, ,~
S71~
yet long enough to ensure tllat the pin is almost completely removed from the pin receptacle when the stem 4 is fully inserted 'n that pin receptacle and hinge is bearing against the under part of head 6.
As can be seen in Figures 1 and 3, the portion 16 of the edge of the head 6 remote from the portion of the head which is secured to stem 4 has a wedge-like shape. Central part 18 of extremity 16 is notched in concave fashion so that portion 16 of the edge of the head may be centered on and wedged under the cap of pin 8 to help lift it from its fully seated position in the pin receptacle of hinge 10 (see Figure 3). Once thus lifted, the pin may be pushed out the rest of the way by striking edge surface of the offset head on an angle (see Figure 3).
In one embodiment of the invention, the portion 20 of stem 4 near its free end 12 is magnetized. This feature assists in hold-ing the tool in position as the operation of removing a magnetically attracted hinge pin from a hinge has begun, and as well assists in preventing that hinge pin, when it has been almost removed, from flying off erratically, the pin being magnetically attracted by the magnetic portion of stem 4.
In another alternative embodiment, the stem may be shortened from that illustrated (e.g. to 1 - 1 inch) to permit use for starting the removal of pins. Its shortened stem will more readily resits bending over long periods of use. Its head 6 would be similar to that of the figures, but its portion 16 may have a sharper wedge-shape to assist the commencement of the removal operation.
In operation, it will be understood that the offset head 6 157~3 greatly facilitates hammering of the tool to remove a pin. The flat end 12 of stem 4 provides a relatively large bearing surface against the bottom of a hinge pin to be removed, which, unlike a nail, will not dig into the bottom of the pin when removing it and which will force the pin upwardly more evenly. In other words, the upward force exerted on the pin is thereby maximized. The head 6 provides a relatively large, easily accessible surface for striking with a hammer and is sufficiently large to provide a place for the user to grip the device during use. The use of such a tool as described herein obviates the potential damage caused to either the pin, hinge or surrounding frame and walls where a screw driver or nail is used for removal of the pin.
Thus there has been described a impact tool for removing pins from a door hinge that fully satisfies the objects, aims and advantages set forth above. While the invention has been described in conjunction with an example embodiment thereof, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art in light of the foregoing description.
Accordingly, it is intended to embrace all such alternatives, modifications and variations as fall within the spirit and broad scope of the appended claims.
Claims (7)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A tool for receiving blows from an impact means to remove a pin from a door hinge which tool comprises:
an elongated cylindrical stem of circular cross-section, of a diameter sufficiently small to clear the inner surfaces of the pin receptacle of the hinge; one end of which stem terminates in a flat surface normal to the longitudinal axis of the stem; and a head to receive the blows from the impact means secured in offset fashion to the stem at its other end, the terminal surface of the head being normal to the longitudinal axis of the stem, the head having a circumscribing edge, the head being secured near a segment of its edge to the stem in such a manner that the edge of the head in that area does not overhang to an appreciable extent the corresponding cylindrical surface of the stem, whereby the chances of scraping or gouging an adjacent door frame or wall are reduced, at least a portion of the head being of wedge-shaped configuration, the portion of its edge most remote from the portion of the head which is secured to the stem being the thin part of the wedge.
an elongated cylindrical stem of circular cross-section, of a diameter sufficiently small to clear the inner surfaces of the pin receptacle of the hinge; one end of which stem terminates in a flat surface normal to the longitudinal axis of the stem; and a head to receive the blows from the impact means secured in offset fashion to the stem at its other end, the terminal surface of the head being normal to the longitudinal axis of the stem, the head having a circumscribing edge, the head being secured near a segment of its edge to the stem in such a manner that the edge of the head in that area does not overhang to an appreciable extent the corresponding cylindrical surface of the stem, whereby the chances of scraping or gouging an adjacent door frame or wall are reduced, at least a portion of the head being of wedge-shaped configuration, the portion of its edge most remote from the portion of the head which is secured to the stem being the thin part of the wedge.
2. A tool according to claim 1 wherein a portion of the edge of the head in the vicinity where it is secured to the stem is flush with the corresponding portion of the cylindrical surface of the stem.
3. A tool according to claim 1 or 2 wherein the head and stem are of integral construction.
4. A tool according to claim 1 or 2 wherein the head is elongated.
5. A tool according to claim 1 wherein the stem has an overall length which is about that of the pin receptacle of the hinge.
6. A tool according to claim 1 or 2 wherein a portion of the tip of the stem near its flat surface is magnetic.
7. A tool according to claim 1 wherein a portion of the head remote from the stem is provided with a wedge-like shape, and a central part of the wedge extremity is notched in concave fashion whereby this portion of the head may be centred on and wedged under the pin to help lift and push it from fully seated position in the pin receptacle.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000351734A CA1121578A (en) | 1980-05-12 | 1980-05-12 | Door pin remover |
| GB8032626A GB2075410A (en) | 1980-05-12 | 1980-10-09 | Door pin remover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000351734A CA1121578A (en) | 1980-05-12 | 1980-05-12 | Door pin remover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1121578A true CA1121578A (en) | 1982-04-13 |
Family
ID=4116919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000351734A Expired CA1121578A (en) | 1980-05-12 | 1980-05-12 | Door pin remover |
Country Status (2)
| Country | Link |
|---|---|
| CA (1) | CA1121578A (en) |
| GB (1) | GB2075410A (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2546100B1 (en) * | 1983-05-17 | 1992-02-28 | Racodon Sa Expl | PUNCHES WITH INTERCHANGEABLE BLADES, ESPECIALLY USEFUL FOR UNLOCKING DOORS AND CAR TRUNKS |
| US4627141A (en) * | 1985-03-12 | 1986-12-09 | Teske Eldor M | Automobile hinge pin remover |
| GB9002732D0 (en) * | 1990-02-07 | 1990-04-04 | Longmore Gordon E | Apparatus for door pin removal and replacement |
| US5054180A (en) * | 1990-03-21 | 1991-10-08 | Combs Paul D | Hinge pin tool |
| GB2272180B (en) * | 1992-11-10 | 1996-01-24 | Mid Sussex Water Plc | Valve spindle tool |
| US5438743A (en) * | 1994-01-03 | 1995-08-08 | Simington; Rusty | Apparatus for extracting and installing a hinge pin |
| DK129597A (en) * | 1997-11-14 | 1999-05-15 | Velux Ind As | Secured hinge |
| US6351881B1 (en) * | 2000-11-20 | 2002-03-05 | Ronald S. Peckich | Hinge pin remover and starter |
-
1980
- 1980-05-12 CA CA000351734A patent/CA1121578A/en not_active Expired
- 1980-10-09 GB GB8032626A patent/GB2075410A/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| GB2075410A (en) | 1981-11-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |