CA2117976A1 - Spring plunger latch assembly - Google Patents
Spring plunger latch assemblyInfo
- Publication number
- CA2117976A1 CA2117976A1 CA 2117976 CA2117976A CA2117976A1 CA 2117976 A1 CA2117976 A1 CA 2117976A1 CA 2117976 CA2117976 CA 2117976 CA 2117976 A CA2117976 A CA 2117976A CA 2117976 A1 CA2117976 A1 CA 2117976A1
- Authority
- CA
- Canada
- Prior art keywords
- plunger
- door
- assembly
- arm
- notch
- 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.)
- Abandoned
Links
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 206010017577 Gait disturbance Diseases 0.000 description 1
- 229910000760 Hardened steel Inorganic materials 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
- E05C17/00—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith
- E05C17/02—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means
- E05C17/04—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means with a movable bar or equivalent member extending between frame and wing
- E05C17/12—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means with a movable bar or equivalent member extending between frame and wing consisting of a single rod
- E05C17/24—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means with a movable bar or equivalent member extending between frame and wing consisting of a single rod pivoted at one end, and with the other end running along a guide member
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
- E05C17/00—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith
- E05C17/02—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means
- E05C17/04—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means with a movable bar or equivalent member extending between frame and wing
- E05C17/32—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means with a movable bar or equivalent member extending between frame and wing consisting of two or more pivoted rods
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Closing And Opening Devices For Wings, And Checks For Wings (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
An overhead mounted door holder assembly for attachment between a door jamb and a door for selectively holding the door in an open position includes a jamb bracket attached to the door jamb, a double arm assembly pivotally attached to the jamb bracket, the double arm assembly having a first arm pivotally connected to a second arm, with the first arm pivotally connected to the jamb bracket, and a channel assembly having a channel therein. A slide assembly is positioned for movement in the channel in response to opening or closing of the door, with the slide assembly being pivotally attached to the second arm of the double arm assembly. A spring plunger assembly is supported by the double arm assembly, the spring plunger assembly having a plunger housing configured to retain a plunger replaceably connected to a manually turnable plunger handle, and a lock plate engageable by the plunger to prevent pivoting movement of the first arm with respect to the second arm, effectively holding the door in a user defined open position until a predetermined amount of force is applied to disengage the plunger from the lock plate.
An overhead mounted door holder assembly for attachment between a door jamb and a door for selectively holding the door in an open position includes a jamb bracket attached to the door jamb, a double arm assembly pivotally attached to the jamb bracket, the double arm assembly having a first arm pivotally connected to a second arm, with the first arm pivotally connected to the jamb bracket, and a channel assembly having a channel therein. A slide assembly is positioned for movement in the channel in response to opening or closing of the door, with the slide assembly being pivotally attached to the second arm of the double arm assembly. A spring plunger assembly is supported by the double arm assembly, the spring plunger assembly having a plunger housing configured to retain a plunger replaceably connected to a manually turnable plunger handle, and a lock plate engageable by the plunger to prevent pivoting movement of the first arm with respect to the second arm, effectively holding the door in a user defined open position until a predetermined amount of force is applied to disengage the plunger from the lock plate.
Description
2117 9 7 6 Docket No. 2034-SL-VD
SPRING PLUNGER LATCH ASSEMBLY
BACKGROUND OF THE INVENTION
This invention relates to an overhead door holder assembly and, more particularly, to an overhead mounted door holder assembly having two pivotably connected arms that are lockable to hold open a door.
':
Temporarily holding a door in an open position is often necessary for convenience and safety. One commonly employed method of holding open a door uses an overhead mounted door control device that includes a pivoting arm attached between an upper portion of a door jamb and an upper part of a door. When the door is to be held open ~
at an angle that does not exceed about 110 degrees, an ~ ;-overhead mounted door control device is efficient, e~Yective, and convenient to install and maintain, is les~ subject to damage by vandalism or accidents, and doe~ not pre~ent a potential stumbling hazard.
, .
~owever, many conventional overhead mounted door control devices are di~icult or impossible to disable, with the door holding mechanism permanently active. Most conventional overhead mounted door holder assemblies cannot be selectively engaged, are not easy to install, and do not have wear elements that are ad~ustable or replaceable without s1gniricant ef~ort and expertlse.
~ ' .' ':
Docket No. 2034-SL-VD
The door holder should be set to permit easy engagement of the door holder, hold the door against minor amounts of ~ostling contact without release, and yet still permit clo~lny the door wi.thout undue effort.
The foregoing illustrates limitations known to exist in present devices and methods. Thus, it is apparent that it would be advantageous to provide an alternative directed to overcoming one or more of the limitations set forth above. Accordingly, a suitable alternative is provlded including ~eature~ more fully disclosed hereina~ter.
SUMMARY OF THE INVENTION
In one aspect of the present invention, this is accomplished by providing overhead mounted door holder assembly for attachment between a door jamb and a door ~or ~electively holding the door in an open posltion in~ludin~ a ~amb bracket attached to the door jamb and a i doubl~ arm assembly plvotally attached to the jamb bracket, the double arm assembly being configured with a ~ir~t arm pivotally connected to a second arm, and the ~irst arm also pivotally connected to the ~amb bracket; a . channcl assembly attached to the door, having a channel therein and a slide assembly positioned for movement in i the channel in response to opening or closing of the door, the sllde assembly being pivotally attached to the '.
i - . . .
I! ~ ' . ' , ' , . . . . .
~ : , . .. ' ' .~:p: , . . .
2117 9 7 6 Docket No. 2034-SL-VD
second arm of the double arm assembly; a spring plunger ~:
assembly supported by the double arm assembly, the spring plunger assembly having a plunger housing configured to ~etain a plunger replaceably conne~ted to a manually 5 turnable plunger handle, and a lock plate engageable by the plunger to prevent pivoting movement of the first arm with respect to the second arm, effectively holding the door in a user defined open position until a predetermined amount of force is applied to disengage the plunger from the lock plate.
The foregoing and other aspects will become apparent ~rom the following detailed description of the invention when considered in conjunction with the accompanying drawing figures.
BRIEF DESCRIPTION OF THE DRAWINGS
Figure 1 is a perspective view o~ an overhead mount~d door holder assembly that includes a spring plunger mechanism according to the present invention;
Flgure 2 i5 a bottom plan view of an overhead mounted door holder assembly, ~howing a handle used for operatlng the spring plunger mechanism;
Figure 3 is an elevatlonal cross sectional view through the plunger housing and a lock plate; and 3 `'.' - 2117 9 7 6 Docket No. 2034-SL-VD
Figure 4 is an elevational cross sectional view similar to that of Figure 3, but with the plunger retracted into the housing, disabling the door hold feature o~ the present invention.
DETAILED DESCRIPTION OF THE INVENTION
As illustrated in Figures 1 and 2, an overhead mounted door holder assembly 10 has a channel assembly 22 positioned adjacent to the top of door 12. The channel assembly 22 is attached to the door 12 so that its longitudinally extending generally U-shaped channel 23 is upwardly open. Positioned ~or longitudinal sliding movement within the channel 23 is a slide assembly 26.
The assembly 10 also includes a jamb bracket 16 fixed to a door jamb 14. A double arm assembly 18 extends between the jamb bracket 16 and the channel assembly 22 to connect the door 12 and door jamb 14. Double arm a~semblv 18 include~ a ~irst arm 20 and a second arm 21 conneated to each other by a pivot 34, with the'~irst arm 20 al~o belnq pivotally connected to the ~amb bracket 16 and the e~cond arm being pivotally connected to the slide as~embly 26. A stop 42 is attached to ~irst arm 20 and extend~ downward to engage and prevent pivoting o~ the ~irst arm 20 across the ~econd arm 21. In pre~erred ~5 embodiments, the ~amb bracket 16, double arm assembly 18 . :,i - .
0;, .
' ; ""
.. . .
' , ' . :' .. . .
21~ 7976 ~
Docket No. 2034- SL-VD
and channel assembly 22 are formed from brass or other durable, wear resistant material such as steel.
The door can be releasibly held in an open position by eng~ying a spring plunger assembly 28 attached to the 5 second arm 21 below a lock plate 32 affixed to the first arm 20. As seen in Figures 3 and 4, the spring plunger assembly 28 includes a plunger handle 30 engaged with a plunger 36. The plunger 36 is formed from hardened steel to increase its resistance to wear, and is configured to have a beveled edge 37 that enhances the ability of the plunyer 36 to ~lide into and out of an aperture 33 defined in the lock plate 32. The plunger 36 and plunger handle 30 are partially contained by a plunger housing 40 which is cylindrically configured to accommodate a plunger spring 38 which simultaneously engages the plunger 36 and the plunger housing 40 to bias the plunger 36 outward ~rom the housing 40 to engage the lock plate 32 when the door is fully opened.
Plunger 36 can be extended from the housing 40 to enable, or retracted to disable the door holding feature oP the pre~cnt invention. The plunger handle 30 has a detcnt 48 th~t can be rotated with the plunger handle and once properly aligned can drop into a lock notch 44 that allows extension of the plunger 36 into its normal door hold open positlon. Continued rotation of the plunger , ;.:: .,.
'', ;'' ~ ', "
2117 9 7 6 Docket No. 2034-S~-VD
handle through an angular distance of about so degrees pulls the plunger 36 up against the resistance of the spring 38, disabling the door hold feature, and allows the detent ~ to drop into a shallowly incised open notch ~6. In this position, the plunger 36 will not engage the aperture 33 of the lock plate 32. Even when the hold open feature is enabled by rotation of the plunger handle detent 48 into position in the lock notch 44, the door 12 can still be forced from a hold open position by exertion of sufficient force so the beveled edge 37 of the plunger contacts the edge of the lock plate aperture 33 and acts as a ramp to ease sliding retraction of the plunger 36 into the housing 40 against the biasing force of the spring 38.
With time, scraping contact of the beveled edge 37 o~ the plunger 36 with the lock plate 32 wears away material of the plunger 36 and results in reduced ~ngagement e~fectiveness and the need to replace the pl~n~er 36. Wlth the present invention, such replacement lh ea~v and inexpensive. The door is rotated until the plunger 36 1B exposed, and the plunger 36 is fixed in po~ition by in~erting a rod or other device lnto a plunger hold aperture. The plunger handle 30 is held and the plunger 36 is rotated to unscrew it from the plunger handle. The worn plunger 36 is discarded, and an lnexpensive replacement is attached to the plunger handle 30.
, ;; '' , .
.
.. . . . .
SPRING PLUNGER LATCH ASSEMBLY
BACKGROUND OF THE INVENTION
This invention relates to an overhead door holder assembly and, more particularly, to an overhead mounted door holder assembly having two pivotably connected arms that are lockable to hold open a door.
':
Temporarily holding a door in an open position is often necessary for convenience and safety. One commonly employed method of holding open a door uses an overhead mounted door control device that includes a pivoting arm attached between an upper portion of a door jamb and an upper part of a door. When the door is to be held open ~
at an angle that does not exceed about 110 degrees, an ~ ;-overhead mounted door control device is efficient, e~Yective, and convenient to install and maintain, is les~ subject to damage by vandalism or accidents, and doe~ not pre~ent a potential stumbling hazard.
, .
~owever, many conventional overhead mounted door control devices are di~icult or impossible to disable, with the door holding mechanism permanently active. Most conventional overhead mounted door holder assemblies cannot be selectively engaged, are not easy to install, and do not have wear elements that are ad~ustable or replaceable without s1gniricant ef~ort and expertlse.
~ ' .' ':
Docket No. 2034-SL-VD
The door holder should be set to permit easy engagement of the door holder, hold the door against minor amounts of ~ostling contact without release, and yet still permit clo~lny the door wi.thout undue effort.
The foregoing illustrates limitations known to exist in present devices and methods. Thus, it is apparent that it would be advantageous to provide an alternative directed to overcoming one or more of the limitations set forth above. Accordingly, a suitable alternative is provlded including ~eature~ more fully disclosed hereina~ter.
SUMMARY OF THE INVENTION
In one aspect of the present invention, this is accomplished by providing overhead mounted door holder assembly for attachment between a door jamb and a door ~or ~electively holding the door in an open posltion in~ludin~ a ~amb bracket attached to the door jamb and a i doubl~ arm assembly plvotally attached to the jamb bracket, the double arm assembly being configured with a ~ir~t arm pivotally connected to a second arm, and the ~irst arm also pivotally connected to the ~amb bracket; a . channcl assembly attached to the door, having a channel therein and a slide assembly positioned for movement in i the channel in response to opening or closing of the door, the sllde assembly being pivotally attached to the '.
i - . . .
I! ~ ' . ' , ' , . . . . .
~ : , . .. ' ' .~:p: , . . .
2117 9 7 6 Docket No. 2034-SL-VD
second arm of the double arm assembly; a spring plunger ~:
assembly supported by the double arm assembly, the spring plunger assembly having a plunger housing configured to ~etain a plunger replaceably conne~ted to a manually 5 turnable plunger handle, and a lock plate engageable by the plunger to prevent pivoting movement of the first arm with respect to the second arm, effectively holding the door in a user defined open position until a predetermined amount of force is applied to disengage the plunger from the lock plate.
The foregoing and other aspects will become apparent ~rom the following detailed description of the invention when considered in conjunction with the accompanying drawing figures.
BRIEF DESCRIPTION OF THE DRAWINGS
Figure 1 is a perspective view o~ an overhead mount~d door holder assembly that includes a spring plunger mechanism according to the present invention;
Flgure 2 i5 a bottom plan view of an overhead mounted door holder assembly, ~howing a handle used for operatlng the spring plunger mechanism;
Figure 3 is an elevatlonal cross sectional view through the plunger housing and a lock plate; and 3 `'.' - 2117 9 7 6 Docket No. 2034-SL-VD
Figure 4 is an elevational cross sectional view similar to that of Figure 3, but with the plunger retracted into the housing, disabling the door hold feature o~ the present invention.
DETAILED DESCRIPTION OF THE INVENTION
As illustrated in Figures 1 and 2, an overhead mounted door holder assembly 10 has a channel assembly 22 positioned adjacent to the top of door 12. The channel assembly 22 is attached to the door 12 so that its longitudinally extending generally U-shaped channel 23 is upwardly open. Positioned ~or longitudinal sliding movement within the channel 23 is a slide assembly 26.
The assembly 10 also includes a jamb bracket 16 fixed to a door jamb 14. A double arm assembly 18 extends between the jamb bracket 16 and the channel assembly 22 to connect the door 12 and door jamb 14. Double arm a~semblv 18 include~ a ~irst arm 20 and a second arm 21 conneated to each other by a pivot 34, with the'~irst arm 20 al~o belnq pivotally connected to the ~amb bracket 16 and the e~cond arm being pivotally connected to the slide as~embly 26. A stop 42 is attached to ~irst arm 20 and extend~ downward to engage and prevent pivoting o~ the ~irst arm 20 across the ~econd arm 21. In pre~erred ~5 embodiments, the ~amb bracket 16, double arm assembly 18 . :,i - .
0;, .
' ; ""
.. . .
' , ' . :' .. . .
21~ 7976 ~
Docket No. 2034- SL-VD
and channel assembly 22 are formed from brass or other durable, wear resistant material such as steel.
The door can be releasibly held in an open position by eng~ying a spring plunger assembly 28 attached to the 5 second arm 21 below a lock plate 32 affixed to the first arm 20. As seen in Figures 3 and 4, the spring plunger assembly 28 includes a plunger handle 30 engaged with a plunger 36. The plunger 36 is formed from hardened steel to increase its resistance to wear, and is configured to have a beveled edge 37 that enhances the ability of the plunyer 36 to ~lide into and out of an aperture 33 defined in the lock plate 32. The plunger 36 and plunger handle 30 are partially contained by a plunger housing 40 which is cylindrically configured to accommodate a plunger spring 38 which simultaneously engages the plunger 36 and the plunger housing 40 to bias the plunger 36 outward ~rom the housing 40 to engage the lock plate 32 when the door is fully opened.
Plunger 36 can be extended from the housing 40 to enable, or retracted to disable the door holding feature oP the pre~cnt invention. The plunger handle 30 has a detcnt 48 th~t can be rotated with the plunger handle and once properly aligned can drop into a lock notch 44 that allows extension of the plunger 36 into its normal door hold open positlon. Continued rotation of the plunger , ;.:: .,.
'', ;'' ~ ', "
2117 9 7 6 Docket No. 2034-S~-VD
handle through an angular distance of about so degrees pulls the plunger 36 up against the resistance of the spring 38, disabling the door hold feature, and allows the detent ~ to drop into a shallowly incised open notch ~6. In this position, the plunger 36 will not engage the aperture 33 of the lock plate 32. Even when the hold open feature is enabled by rotation of the plunger handle detent 48 into position in the lock notch 44, the door 12 can still be forced from a hold open position by exertion of sufficient force so the beveled edge 37 of the plunger contacts the edge of the lock plate aperture 33 and acts as a ramp to ease sliding retraction of the plunger 36 into the housing 40 against the biasing force of the spring 38.
With time, scraping contact of the beveled edge 37 o~ the plunger 36 with the lock plate 32 wears away material of the plunger 36 and results in reduced ~ngagement e~fectiveness and the need to replace the pl~n~er 36. Wlth the present invention, such replacement lh ea~v and inexpensive. The door is rotated until the plunger 36 1B exposed, and the plunger 36 is fixed in po~ition by in~erting a rod or other device lnto a plunger hold aperture. The plunger handle 30 is held and the plunger 36 is rotated to unscrew it from the plunger handle. The worn plunger 36 is discarded, and an lnexpensive replacement is attached to the plunger handle 30.
, ;; '' , .
.
.. . . . .
Claims (12)
1. An overhead mounted adjustable door holder assembly for attachment between a door jamb and a door, for selectively holding the door in an open position, comprising:
a jamb bracket attached to the door jamb;
a double arm assembly pivotally attached to the jamb bracket, the double arm assembly having a first arm pivotally connected to a second arm, and pivotally connected to the jamb bracket;
a channel assembly having a channel therein with a slide assembly positioned for movement in the channel in response to opening or closing of the door, the slide assembly being pivotally attached to the second arm of the double arm assembly; and a spring plunger assembly supported by the double arm assembly, the spring plunger assembly having a plunger housing configured to retain a plunger replaceably connected to a manually turnable plunger handle, and a lock plate engageable by the plunger to prevent pivoting movement of the first arm with respect to second arm, effectively holding the door in a user defined open position until a predetermined amount of force is applied to disengage the plunger from the lock plate.
a jamb bracket attached to the door jamb;
a double arm assembly pivotally attached to the jamb bracket, the double arm assembly having a first arm pivotally connected to a second arm, and pivotally connected to the jamb bracket;
a channel assembly having a channel therein with a slide assembly positioned for movement in the channel in response to opening or closing of the door, the slide assembly being pivotally attached to the second arm of the double arm assembly; and a spring plunger assembly supported by the double arm assembly, the spring plunger assembly having a plunger housing configured to retain a plunger replaceably connected to a manually turnable plunger handle, and a lock plate engageable by the plunger to prevent pivoting movement of the first arm with respect to second arm, effectively holding the door in a user defined open position until a predetermined amount of force is applied to disengage the plunger from the lock plate.
2. The door holder assembly of claim 1, wherein the plunger housing has a lock notch and an open notch, the lock notch having a greater depth than the open notch, and wherein the plunger handle has a plunger handle detent for engaging the lock notch and the open notch, respectively, as the plunger handle is rotated between locked and open positions.
3. The door holder assembly of claim 1, wherein the plunger housing contains a plunger spring to bias the plunger toward the lock plate.
4. The door holder assembly of claim 1, wherein the plunger is constructed from steel for threaded engagement with the plunger handle, the threaded engagement permitting replacement of the plunger when it sufficiently wears and fails to engage the lock plate with required force to hold open the door.
5. The door holder assembly of claim 1, wherein the plunger is in threaded engagement with the plunger handle, this threaded engagement permitting replacement the plunger when it sufficiently wears and fails to engage the lock plate, and wherein the plunger housing has a lock notch and an open notch, with the lock notch having a greater depth than the open notch, and wherein the plunger handle has a plunger handle detent for respectively engaging the lock notch and the open notch as the plunger handle is rotated, with the plunger handle detent being maintained in one of the lock notch or open notch by force exerted by a plunger spring contained in the plunger housing and biasing the plunger toward the lock plate.
6. The door holder assembly of claim 1, wherein the double arm assembly further comprises a stop attached to the first arm and positioned to prevent movement of the first arm past the second arm.
7. The door holder assembly of claim 1, wherein the plunger is symmetrical about the axis, to allow rotation in the plunger housing, and terminates in a beveled edge that permits ramped disengagement of the plunger from the lock plate.
8. The door holder assembly of claim 7, wherein the plunger further comprises means for holding during threaded engagement with the plunger handle, the holding means fixing the plunger in position as the plunger handle is threaded onto the plunger.
9. An adjustable overhead mounted door holder assembly, for attachment between a door jamb and a door, comprising:
means for pivotally attaching a jamb arm to the door, the attaching means having first and second arms pivotally connected to each other;
means for holding the door comprising a spring plunger assembly supported by the attaching means, the spring plunger assembly having a plunger housing containing a plunger replaceably connected to a manually turnable plunger handle, and a lock plate engageable by the plunger to prevent pivoting movement of the first arm with respect to the second arm, effectively holding the door in a user defined open position until a predetermined amount of force is applied to disengage the plunger from the lock plate.
means for pivotally attaching a jamb arm to the door, the attaching means having first and second arms pivotally connected to each other;
means for holding the door comprising a spring plunger assembly supported by the attaching means, the spring plunger assembly having a plunger housing containing a plunger replaceably connected to a manually turnable plunger handle, and a lock plate engageable by the plunger to prevent pivoting movement of the first arm with respect to the second arm, effectively holding the door in a user defined open position until a predetermined amount of force is applied to disengage the plunger from the lock plate.
10. The door holder assembly of claim 9, wherein the plunger housing has a lock notch and an open notch, the lock notch inset into the housing to a greater depth than the open notch, and wherein the plunger handle has a plunger handle detent for respectively engaging the lock notch and the open notch as the plunger handle is rotated.
11. The door holder assembly of claim 10, wherein the plunger housing contains a plunger spring to bias the plunger toward the lock plate.
12. The door holder assembly of claim 9, wherein the plunger is constructed from steel for threaded engagement with the plunger handle, the threaded engagement permitting replacement of the plunger when it sufficiently wears and fails to engage the lock plate with required force to hold open the door.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US13852693A | 1993-10-15 | 1993-10-15 | |
| US08/138,526 | 1993-10-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2117976A1 true CA2117976A1 (en) | 1995-04-16 |
Family
ID=22482419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2117976 Abandoned CA2117976A1 (en) | 1993-10-15 | 1994-10-12 | Spring plunger latch assembly |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP0649965A1 (en) |
| CA (1) | CA2117976A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112065194A (en) * | 2020-09-15 | 2020-12-11 | 佛山市博智英聚科技有限公司 | Automatic fireproof window |
| CN112065195A (en) * | 2020-09-15 | 2020-12-11 | 佛山市博智英聚科技有限公司 | Aluminum alloy door and window |
| CN112834793A (en) * | 2021-01-08 | 2021-05-25 | 国网浙江省电力有限公司湖州供电公司 | Protection device for changing ammeter without power outage |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4152716B2 (en) | 2002-10-15 | 2008-09-17 | スガツネ工業株式会社 | Stay |
| DE102005050639B4 (en) * | 2005-10-20 | 2009-11-05 | Rittal Gmbh & Co. Kg | Device for locking a door of a housing |
| KR200445533Y1 (en) | 2007-09-17 | 2009-08-07 | 조남기 | Door brake having a cover rail |
| IT1401786B1 (en) * | 2010-10-11 | 2013-08-28 | Quattro S R L I | STATIONARY ARTICULATED DEVICE. |
| DE102011056961A1 (en) * | 2011-07-13 | 2013-01-17 | Dorma Gmbh + Co. Kg | Drehflügelbetätiger-link arm |
| FR2988764B1 (en) * | 2012-04-02 | 2014-11-28 | Assly | ARB ENTREBAILLEUR FOR MAINTAINING AN OPENING IN A PREDETERMINED OPEN POSITION IN RELATION TO A DORMANT. |
| US10137773B1 (en) | 2017-05-03 | 2018-11-27 | Ford Global Technologis, Llc | Non-linear spring mechanism |
| DE102020206544B4 (en) | 2020-05-26 | 2022-08-04 | Geze Gmbh | Linkage for a door closer or door operator, door closer or door operator and door |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1966205A (en) * | 1931-06-08 | 1934-07-10 | Elvin H Johnson | Builder's hardware |
| GB722032A (en) * | 1951-01-19 | 1955-01-19 | Eric Sigfrid Persson | Improvements in closing and opening mechanism for windows and the like |
| GB704989A (en) * | 1951-05-24 | 1954-03-03 | Carbodies Ltd | Hood for a motor car |
| US3259936A (en) * | 1964-05-05 | 1966-07-12 | Eaton Yale & Towne | Door holder and control |
| US3877108A (en) * | 1971-12-10 | 1975-04-15 | Schlage Lock Co | Door hold-open device |
| US3909877A (en) * | 1975-01-17 | 1975-10-07 | Eaton Corp | Detent door holder |
| US4339844A (en) * | 1978-06-30 | 1982-07-20 | Caterpillar Tractor Co. | Assembly for holding open a door or the like |
| FI70068C (en) * | 1984-10-09 | 1986-09-12 | Waertsilae Oy Ab | PROCEDURE FOR THE INSTALLATION OF THE INSTALLATION OF A PAE AND DOORR INIKTAD DOERRSTAENGARKRAFT |
-
1994
- 1994-10-12 CA CA 2117976 patent/CA2117976A1/en not_active Abandoned
- 1994-10-14 EP EP94307554A patent/EP0649965A1/en not_active Ceased
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112065194A (en) * | 2020-09-15 | 2020-12-11 | 佛山市博智英聚科技有限公司 | Automatic fireproof window |
| CN112065195A (en) * | 2020-09-15 | 2020-12-11 | 佛山市博智英聚科技有限公司 | Aluminum alloy door and window |
| CN112834793A (en) * | 2021-01-08 | 2021-05-25 | 国网浙江省电力有限公司湖州供电公司 | Protection device for changing ammeter without power outage |
| CN112834793B (en) * | 2021-01-08 | 2022-09-27 | 国网浙江省电力有限公司湖州供电公司 | Protection device for changing ammeter without power outage |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0649965A1 (en) | 1995-04-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |