US2612398A - Window stop device - Google Patents
Window stop device Download PDFInfo
- Publication number
- US2612398A US2612398A US94875A US9487549A US2612398A US 2612398 A US2612398 A US 2612398A US 94875 A US94875 A US 94875A US 9487549 A US9487549 A US 9487549A US 2612398 A US2612398 A US 2612398A
- Authority
- US
- United States
- Prior art keywords
- sash
- pendent
- movement
- window
- leg
- 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
- 239000011521 glass Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- RUPBZQFQVRMKDG-UHFFFAOYSA-M Didecyldimethylammonium chloride Chemical compound [Cl-].CCCCCCCCCC[N+](C)(C)CCCCCCCCCC RUPBZQFQVRMKDG-UHFFFAOYSA-M 0.000 description 1
- 101800000268 Leader protease Proteins 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F11/00—Man-operated mechanisms for operating wings, including those which also operate the fastening
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05Y2900/00—Application of doors, windows, wings or fittings thereof
- E05Y2900/10—Application of doors, windows, wings or fittings thereof for buildings or parts thereof
- E05Y2900/13—Application of doors, windows, wings or fittings thereof for buildings or parts thereof characterised by the type of wing
- E05Y2900/148—Windows
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S292/00—Closure fasteners
- Y10S292/20—Window fasteners
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T292/00—Closure fasteners
- Y10T292/08—Bolts
- Y10T292/1043—Swinging
- Y10T292/1063—Gravity actuated
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T292/00—Closure fasteners
- Y10T292/08—Bolts
- Y10T292/1043—Swinging
- Y10T292/1063—Gravity actuated
- Y10T292/1064—Operating means
- Y10T292/1072—Rigid
Definitions
- the pendent 8 is pivotally supportedv for pivotal movement in a vertical plane toward and away from the glass pane 21 in the upper sash I0, at a position adjacent to the inner side 25 of the frame member or side rail 1.
- the bracket Id and pendent 8 are of a relative constructio n such that when the pendent 8 is pivotally moved toits rear-most position against the' pane 21, as shown in dotted lines in Fig. 3,' the pendent is substantially within'the connes of the upper sash IIJ, and out of the path of travelv of the check rail 26 for the lower sash3 I. n
- the pendent 8 is .manually Lmovedto its dotted-line position, shown in Fig. 3, so asto be substantially within the confines ofthe upper sash I and entirely out of the path of movement of the lower sash 3
- the invention provides a windowstop device'which is of a simple and compact construction, capable of beingI easilyinstalledona Vstandard typev window, and eicient andpositive in 'operation to limit the opening movement Vof n lBy virtue of the automatic return of the pendent 8 Yto its rest or operating position, whenever thev sashes are in their closed positions, the device is always ready Vto limit the opening movement of either.
- This safety is further guaranteed by virtue of the projections I1, I8 and I9 acting as guides to support the pendent 8 against tilting movement tending to pull the pin 2
- a device fror'limiting the opening' movementof the sashes in a window comprising, a .dat pivoted pendent'vniember of 'a'substantially lL -shape, 'a bracket adapted to be secured'againsttheffi'ont surface of a side frame member of the upper sash in said windowhavingv an end section positioned opposite the glass pane of said upper sash, a'series Vof three lateral projections on saidend section extended towardr said glass pane and spaced horizontally from said bracket member in de ned ,by thejapa spaced relation transversely of said bracket member, with two of said projections being in a common vertical plane, and the third one of said projections being located intermediate said two projections in a vertical plane parallel to and spaced outwardly from said common plane, and a pivot for said pendent member carried in the upper one of said two projections, with said two said pendent member, in a rest
Description
Sept. 30, 1952 Ml M MlLLER 2,612,398
WINDOW STOP DEVICE Filed May 25, 1949 Patented sept. so," 1952 fflhi'sdnventionf relates igeneraily-towindow stop devices and 1inj particular to a devicef or limiting the openingmovement off-the sashes'of favwindow. `-}'-Ai1 :object-fof thisfinvention is `to lprovideA .an -improved Window-stop" device.
y l` Ambt/her *object of vvthis Iinvention is to provide a '-Windowlstopdevice' forfflim'i'ting' theopening movement-of#window sasheszwhich, whenv the Csash'es'are in E'closed position; islalways in @a -lposition to engage a sash. f v
' lA-:furtherobject-lcf this Vinvention!isl-to provide fopening-'iniove'inent thereof, yLand automatically lreturnedto va position totlimit thef'o-pening move- 'fm'entot-a -sash'on movementfofithe'sa'shes to their lolosed positions, A U- l Yet anotherobjectofzthis inventioniis itofproavide a lstop-device 'for lwindovvsashes infwhich a AHpendent member and a supporting Ibracket theref for are-relatively constructed such kthat any-force #applied on the pendent member -by a window sash `'is'- transmitted- -to the-zbracket.
provide af stop device fonwindow sashes` whichis 2 of a-jco'mpact and-simple construction,- economical -t'o 'inanufactur, and adaptedy to Abefinstalled" :on staifi'dard--type--v-windowsv without appr'eciably `def-acing ithe window-or '-detracting l'from al neat. sever-'all appearance --o the windev/ y Affeature oifthis-invention isfoundinfth'e pro- #vis'ion foff astop device forlwindowf-sashes-fin Iwhich a brac-ketsupport-` for apendentmernber is formed with *a `=series'df'fthree@vertically lsp acec1-:lateral -projection`s. `'Ihetop and bottom projections are esuli a'ifurer object Iof this invention asf-to 25 shown r zasserniblymelatteni4 .A ppucation'May-za, i949, s'eriai Nofaiisis e, (Glazen-230) with ither'nppe Sash `of"af=window; .L i *Figs 3 is a sideielevationallviewwoftherstop vdevice shown in anv engaged iposition@n Withfthe 7lowensash'totlimitthe upward movement thereof; fand f y Fig. 4 is a sectional detail view taken ailong'fth'e f'lineJd--ll in'Fig-LB.
Withmeference to the drawings,v the in a common plane andthe intermediateproj'ec- 1 itionjisroiset. longitudinally fromfsu'ch two A pro- "jections i The pendent memb-erhas itsupper end vrpivotally supported on the top projection andi-is ""gluida'blysuppnrted..in its 'swinging or` pivotal movement between'the two projections andthe offset projection; When the pendent .member is engaged by a window sash, a portionfthereo isv engageablewith the, intermediate projection so Eurthen ohje.cts, features .and advantages. of
description when. taken.ineonneenon., witnane accompanying. drawingsain which: j, Figalfis Ian,gexploded@perspective viewohthe Window stopfdevice .of 1 this invention;
blyre1ationwith the upperssa'shl Blof a fus'u'alitype window', which sash 'includesza' lowerimeetingoor check rail v.5- andan uprightside :railaorsluframe member 1. f
.fde'signatedwgenerally asie; havng afnam body 1:which'terminate in l'ateralprojiections l-flljfand 149, respectively. "'.Since theproiections I1,1,|:8l.an'd IB.- are rin= a -verticallycspaced :relation-When the bracket I 4... is :securedzto :the vsidel 'fratrie member fito as `th'enpper. projection; and y'the lpro'j'e'ction .i149 as Tthefzl'ower projection# "The ,centerfprojec- 'tiorry .t8 Aiis. offsett:longitudinally 4outwardly!4 from the projections i111 and I 9,4 whichleinfai'common vljfthis. invention)wllaappal; from the., follow-inap@ their-check rail-'Bi-dependent1upon theopening-of f'which'the-'fopening movement-oa sash-isitofbe 2,612,398 i A i i :stop-.device 1,? the proj ection I 1 `will-113e'l'iereinaftenreferredr transversely of said openings. -E-ipendent" 8 is free Vto move to its rest position,
of the 'frame member 1 so as toy overlie the sash pane 21.
As a result, the pendent 8 is pivotally supportedv for pivotal movement in a vertical plane toward and away from the glass pane 21 in the upper sash I0, at a position adjacent to the inner side 25 of the frame member or side rail 1. The bracket Id and pendent 8 are of a relative constructio n such that when the pendent 8 is pivotally moved toits rear-most position against the' pane 21, as shown in dotted lines in Fig. 3,' the pendent is substantially within'the connes of the upper sash IIJ, and out of the path of travelv of the check rail 26 for the lower sash3 I. n
On movement of the pendent 8, by gravity, to its rest position, as shown in Figs. 2 and 3, the
forward-end 32 of the lower pendent legiI is; arranged in the path of travel of the lower sash 3| so as to provide for the engagement of the leg I Iwith the check rail 28 onupward movevment-fofwthe lowersash. vThis projection of the leg I I within the path of travell of the lower sash eis,A accomplished by virtue of Ythe rivet 2 IV being inserted through the'pendent 8 at a positionadiacentto the forward side of theupright leg I2,
so as to give an OIT-balance suspension of the` pendent.
In thev operation of the stop device assume that :the vpendent 8 kis in its rest position, shown in Figsifzand 3,'and that the lower sash 3| is .in its` loweredfor closed position. At this rest position the forwardxend 32k of the leg I is in the path of upward-movement of the lower sash. Thus, as the lower sash 3| is moved upwardly, the leg II .isengaged by thefmeeting rail 28v so asA to limit' any further upwardmovement offthelower sash.v
' Theupward force applied on the lower .sash 3| `is prevented from being transmitted to the pivot pin 2| by the co-acting engagement of the ,bottom side of the flongitudinal extension 18a Thisy engagement takes Vplace by-Virtue of the fact with the top side'of the pendent leg I I.
that the openings 22 and-23-'forthe` pivotpin 2| are ofasize to loosely receive the pivot pin so as to'allow a limited free movementof the pin As a result, the
which is determinedby the engagement of the l Afront side of'. the uprightleg I2 with the rear side of .the longitudinal extension |8a and with the top'side ofthe pendent leg II spaced below the extension |Y8a. However, on engagementA of the pendent by the vcheckrail 28, the pendent 8 is rmoved upwardly -to in turn provide for the en- :gagementof its leg II with the extension I8a, Y as shown in fuiliines in Fig. 3. vforcegapplied on the lower sash 3| during itsA `opening movement, or tending to move it beyond its position as limited by the stop device, is thus transmitted entirely to the bracket I 4. It is seen, '60
vIn order to raise the .lower sash 3| to its full limit of upward travel, the pendent 8 is .manually Lmovedto its dotted-line position, shown in Fig. 3, so asto be substantially within the confines ofthe upper sash I and entirely out of the path of movement of the lower sash 3|. Stated other- .,Lwise, thelpendent-,is designed 'toV t within the Any upward either ofthe window sashes.
' movement of the sash 3|.
4 space dened by the distance between the glass 'pane 21 andthe reary upper edge 35 of the check rail 28. f
Ori downward movement of the sash 3|, from a fully raised position therefor, the lower rear edge 33 of the check rail 28 initially engages the front top side portion 35 of the pendent leg II, which portion is of an arcuate shape so as to constitute a cam surface. Thus, onra continued downward movement of'the.sash3'|; the'lower edge'33 moves downwardly along the'curved cam surface 34 whereby the pendent 8 vis pivotally moved in a vrearward direction to permit a free downward As soon as the check rail 28 of the lower sash 3| moves out of engagement with the cam 34, the pendent 8, by the action of gravity, is automatically returned to its rest position whereby its lower leg II is again `within the path of movement of the lower sash.
VrIn the operation of the device to limit the opening movement of the upper sash I0, assume the sashes I0 Aand 3| to be in their' closed positions and the pendent 8 to be in its rest position. On opening movement of the upper sash, the pendent lower leg II is movedinto engagement with the check rail 28 of the lower sash, whereby further opening movement of the upper sash :ID is limited. To fully open the upper sash- I8, the pendenty 8 is merely moved to its dotted-line showing-in Fig. 3.
From a consideration of the abovefdescription, it is seen that the invention provides a windowstop device'which is of a simple and compact construction, capable of beingI easilyinstalledona Vstandard typev window, and eicient andpositive in 'operation to limit the opening movement Vof n lBy virtue of the automatic return of the pendent 8 Yto its rest or operating position, whenever thev sashes are in their closed positions, the device is always ready Vto limit the opening movement of either. Further, it will be importantly` noted that any force applied on either-of the :two sashes,jtending to open them beyond their positions defined by the stop device, is transmitted entirely to the bracket Id and not Von the pin 2| so as to give greater assurance of safety yagainst a sash being forced open, as by-burglars, when asash-ais left in an open position. This safety is further guaranteed by virtue of the projections I1, I8 and I9 acting as guides to support the pendent 8 against tilting movement tending to pull the pin 2| outwardly from the openings 22 and 23; Further, these three projectionsvguide the pivotal movement of the pendent 8 in a vertical path so that it is alwaysY in an upright position for engagement with the check'rail 28.
Although the` invention has.v been described with respect to a preferred embodiment thereof,
it is to be understood that it is not to be so limited'since changes and modifications canfbe made therein which are 'witninthe fun-intended scope of this invention, .s Y n pended claim.
Iclaim: y Y Y, A device fror'limiting the opening' movementof the sashes in a window comprising, a .dat pivoted pendent'vniember of 'a'substantially lL -shape, 'a bracket adapted to be secured'againsttheffi'ont surface of a side frame member of the upper sash in said windowhavingv an end section positioned opposite the glass pane of said upper sash, a'series Vof three lateral projections on saidend section extended towardr said glass pane and spaced horizontally from said bracket member in de ned ,by thejapa spaced relation transversely of said bracket member, with two of said projections being in a common vertical plane, and the third one of said projections being located intermediate said two projections in a vertical plane parallel to and spaced outwardly from said common plane, and a pivot for said pendent member carried in the upper one of said two projections, with said two said pendent member, in a rest position, having the short leg thereof within the path of movement of the lower sash so as to be engaged by the lower sash on raising thereof.
' MORRIS M. MIILER.
REFERENCES CITED The following references are of record in the me of this patent:
` UNITED STATES PATENTS Number Name Date 840,427 Brister Jan. 1, 1907 1,622,742 Shipman Mar. 29, 1927 15 1,724,637 Bergstrom Aug. 13, 1929 2,158,260 Stillman May 16, 1939 2,480,988 Walton.; Sept. 6, 1949
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US94875A US2612398A (en) | 1949-05-23 | 1949-05-23 | Window stop device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US94875A US2612398A (en) | 1949-05-23 | 1949-05-23 | Window stop device |
Publications (1)
Publication Number | Publication Date |
---|---|
US2612398A true US2612398A (en) | 1952-09-30 |
Family
ID=22247688
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US94875A Expired - Lifetime US2612398A (en) | 1949-05-23 | 1949-05-23 | Window stop device |
Country Status (1)
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US (1) | US2612398A (en) |
Cited By (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3938838A (en) * | 1974-07-15 | 1976-02-17 | Lee Wesley Brakensiek | Sliding door lock |
US4907832A (en) * | 1988-08-29 | 1990-03-13 | Truth Incorporated | Secondary locking mechanism |
US20100313488A1 (en) * | 2009-05-29 | 2010-12-16 | Luke Liang | Adjustable after-market sash window stop |
US9840860B2 (en) | 2009-05-29 | 2017-12-12 | Vision Industries Group, Inc. | Double-action, adjustable, after-market sash stop |
US10006232B2 (en) | 2006-03-28 | 2018-06-26 | Vision Industries Group | Window vent stop with flexible side engagement pieces |
US20180209186A1 (en) * | 2017-01-20 | 2018-07-26 | Pella Corporation | Window opening control systems and methods |
US10107021B1 (en) | 2006-03-28 | 2018-10-23 | Vision Industries Group, Inc. | Window vent stop with plastic spring member for bi-directional biasing of the tumbler |
US10119310B2 (en) | 2014-03-06 | 2018-11-06 | Vision Industries Group, Inc. | Combination sash lock and tilt latch with improved interconnection for blind mating of the latch to the lock |
US10633897B2 (en) | 2017-02-16 | 2020-04-28 | Vision Industries Group, Inc. | Tamper-resistant lock |
US10704297B2 (en) | 2014-03-06 | 2020-07-07 | Vision Industries, Inc. | Impact resistant lock and tilt latch combination for a sliding sash window |
US10844636B2 (en) | 2017-05-23 | 2020-11-24 | Vision Industries Group, Inc. | Combination forced entry resistant sash lock and tilt latch, also functioning as a window opening control device |
US10844642B2 (en) | 2014-03-06 | 2020-11-24 | Vision Industries Group, Inc. | Combination four-position sash lock and tilt latch also functioning as a window opening control device |
US10865592B2 (en) | 2014-03-06 | 2020-12-15 | Vision Industries Group, Inc. | Sash lock and tilt latch also functioning as a window vent stop, with automatic locking upon closure |
US11047157B1 (en) | 2006-03-28 | 2021-06-29 | Vision Industries Group, Inc. | Vent stop |
US11118376B1 (en) | 2017-10-18 | 2021-09-14 | Vision Industries Group, Inc. | Combination sash lock and tilt latch and slidable window vent stop |
US11168495B1 (en) | 2018-08-01 | 2021-11-09 | Vision Industries Group, Inc. | Automatically resetting window vent stop with dual safety features |
US11168492B1 (en) | 2017-02-16 | 2021-11-09 | Vision Industries Group, Inc. | Tamper resistant sash lock |
US11187010B1 (en) | 2019-09-19 | 2021-11-30 | Vision Industries, Inc. | Forced-entry-resistant sash lock |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US840427A (en) * | 1905-11-28 | 1907-01-01 | Alison M Brister | Sash holder and fastener. |
US1622742A (en) * | 1925-11-05 | 1927-03-29 | Emma Shipman | Window-sash latch |
US1724637A (en) * | 1927-08-31 | 1929-08-13 | Roy H Bergstrom | Sash latch |
US2158260A (en) * | 1938-04-04 | 1939-05-16 | Erwin F Stillman | Window lock |
US2480988A (en) * | 1945-02-06 | 1949-09-06 | Albert E Walton | Window sash lock |
-
1949
- 1949-05-23 US US94875A patent/US2612398A/en not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US840427A (en) * | 1905-11-28 | 1907-01-01 | Alison M Brister | Sash holder and fastener. |
US1622742A (en) * | 1925-11-05 | 1927-03-29 | Emma Shipman | Window-sash latch |
US1724637A (en) * | 1927-08-31 | 1929-08-13 | Roy H Bergstrom | Sash latch |
US2158260A (en) * | 1938-04-04 | 1939-05-16 | Erwin F Stillman | Window lock |
US2480988A (en) * | 1945-02-06 | 1949-09-06 | Albert E Walton | Window sash lock |
Cited By (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3938838A (en) * | 1974-07-15 | 1976-02-17 | Lee Wesley Brakensiek | Sliding door lock |
US4907832A (en) * | 1988-08-29 | 1990-03-13 | Truth Incorporated | Secondary locking mechanism |
US10006232B2 (en) | 2006-03-28 | 2018-06-26 | Vision Industries Group | Window vent stop with flexible side engagement pieces |
US11047157B1 (en) | 2006-03-28 | 2021-06-29 | Vision Industries Group, Inc. | Vent stop |
US10053896B2 (en) | 2006-03-28 | 2018-08-21 | Vision Industries Group, Inc. | Window vent stop with flexible side engagement pieces |
US10107021B1 (en) | 2006-03-28 | 2018-10-23 | Vision Industries Group, Inc. | Window vent stop with plastic spring member for bi-directional biasing of the tumbler |
US20100313488A1 (en) * | 2009-05-29 | 2010-12-16 | Luke Liang | Adjustable after-market sash window stop |
US8789862B2 (en) * | 2009-05-29 | 2014-07-29 | Vision Industries Group, Inc. | Adjustable after-market sash window stop |
US9840860B2 (en) | 2009-05-29 | 2017-12-12 | Vision Industries Group, Inc. | Double-action, adjustable, after-market sash stop |
US10920469B2 (en) | 2009-05-29 | 2021-02-16 | Vision Industries Group, Inc | Double-action, adjustable, after-market sash stop |
US10323446B2 (en) | 2014-03-06 | 2019-06-18 | Vision Industries Group, Inc. | Integrated sash lock and tilt latch combination with improved interconnection capability therebetween |
US10704297B2 (en) | 2014-03-06 | 2020-07-07 | Vision Industries, Inc. | Impact resistant lock and tilt latch combination for a sliding sash window |
US10844642B2 (en) | 2014-03-06 | 2020-11-24 | Vision Industries Group, Inc. | Combination four-position sash lock and tilt latch also functioning as a window opening control device |
US10865592B2 (en) | 2014-03-06 | 2020-12-15 | Vision Industries Group, Inc. | Sash lock and tilt latch also functioning as a window vent stop, with automatic locking upon closure |
US10119310B2 (en) | 2014-03-06 | 2018-11-06 | Vision Industries Group, Inc. | Combination sash lock and tilt latch with improved interconnection for blind mating of the latch to the lock |
US20180209186A1 (en) * | 2017-01-20 | 2018-07-26 | Pella Corporation | Window opening control systems and methods |
US11454055B2 (en) * | 2017-01-20 | 2022-09-27 | Pella Corporation | Window opening control systems and methods |
US10633897B2 (en) | 2017-02-16 | 2020-04-28 | Vision Industries Group, Inc. | Tamper-resistant lock |
US11168492B1 (en) | 2017-02-16 | 2021-11-09 | Vision Industries Group, Inc. | Tamper resistant sash lock |
US10844636B2 (en) | 2017-05-23 | 2020-11-24 | Vision Industries Group, Inc. | Combination forced entry resistant sash lock and tilt latch, also functioning as a window opening control device |
US11118376B1 (en) | 2017-10-18 | 2021-09-14 | Vision Industries Group, Inc. | Combination sash lock and tilt latch and slidable window vent stop |
US11168495B1 (en) | 2018-08-01 | 2021-11-09 | Vision Industries Group, Inc. | Automatically resetting window vent stop with dual safety features |
US11187010B1 (en) | 2019-09-19 | 2021-11-30 | Vision Industries, Inc. | Forced-entry-resistant sash lock |
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