US3852846A - Door hold open attachment for a door check - Google Patents

Door hold open attachment for a door check Download PDF

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Publication number
US3852846A
US3852846A US00276122A US27612272A US3852846A US 3852846 A US3852846 A US 3852846A US 00276122 A US00276122 A US 00276122A US 27612272 A US27612272 A US 27612272A US 3852846 A US3852846 A US 3852846A
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United States
Prior art keywords
valve
door
fluid
seat
cylinder
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
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US00276122A
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English (en)
Inventor
L Slaybaugh
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Republic Industries Inc
Original Assignee
Republic Industries Inc
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Publication date
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=23055273&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=US3852846(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Republic Industries Inc filed Critical Republic Industries Inc
Priority to US00276122A priority Critical patent/US3852846A/en
Priority to JP1023373A priority patent/JPS5418499B2/ja
Priority to CA163,755A priority patent/CA983059A/en
Priority to ZA731196A priority patent/ZA731196B/xx
Priority to SE7302324A priority patent/SE385723B/xx
Priority to GB937373A priority patent/GB1414851A/en
Priority to GB1800975A priority patent/GB1414852A/en
Priority to DE2311343A priority patent/DE2311343C2/de
Priority to FR7312858A priority patent/FR2195251A5/fr
Priority to IT23942/73A priority patent/IT987272B/it
Priority to JP7576474A priority patent/JPS5420268B2/ja
Publication of US3852846A publication Critical patent/US3852846A/en
Application granted granted Critical
Priority to SE7511319A priority patent/SE399096B/xx
Priority to CA238,399A priority patent/CA996963A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • E05F3/00—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices
    • E05F3/22—Additional arrangements for closers, e.g. for holding the wing in opened or other position
    • E05F3/223—Hydraulic power-locks, e.g. with electrically operated hydraulic valves
    • 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
    • E05F3/00—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices
    • E05F3/04—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with liquid piston brakes
    • E05F3/10—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with liquid piston brakes with a spring, other than a torsion spring, and a piston, the axes of which are the same or lie in the same direction
    • E05F3/102—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with liquid piston brakes with a spring, other than a torsion spring, and a piston, the axes of which are the same or lie in the same direction with rack-and-pinion transmission between driving shaft and piston within the closer housing
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/20—Brakes; Disengaging means; Holders; Stops; Valves; Accessories therefor
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/20—Brakes; Disengaging means; Holders; Stops; Valves; Accessories therefor
    • E05Y2201/252—Type of friction
    • E05Y2201/254—Fluid or viscous friction
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • 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—Type of wing
    • E05Y2900/132—Doors

Definitions

  • ABSTRACT An attachment for a conventional, surface mounted, overhead door control incorporating electrically actu ated provision for holding the door open to any desired degree, but defeatable by manual pressure or by deenergization of the electric circuitry.
  • a surface mounted door check unit of the type wherein arcuate movement of an arm rotates a pinion meshed with a rack carried by a piston. Rack movement compresses a spring upon door opening, and
  • the device of the present invention contemplates a displacement of the door holding mechanism entirely away from the area of the fluid escape ports such that no sealing of the rack piston is necessary, and the movable member of the holding mechanism is not called on to pass any ports.
  • the device of the present invention contemplates a wholly enclosed valve operating armature such that no packing gland and no possibility of oil drip occurs at the site of the door holding valve.
  • the device of the present invention can be employed strictly as an accessory or an attachment to a standard door closer such that the standard closer may be modi-.
  • the door holding mechanism constitutes an axial extension of the door check and lies wholly within the longitudinal projection of the walls of the door check such that no mounting change need be made in the check upon incorporation of the door holding mechanism, and paneling or fairing may be employed to provide a surface continuous with that of the check proper.
  • the device of the Martin application shows a door hold-open mechanism which can be overpowered by manual pressure on the door wherein the door will stand open at the point where the overpowering force is released.
  • the device of the present invention contemplates an optional structure where, upon the application of overpowering pressure even momentarily, the
  • FIG. 1 is a horizontal section through a representative door checkincorporating the device of the present invention, shown in its condition when the door it controls'is fully open;
  • FIG. 2 is a similar section shown with the parts thereof in the door-closed position
  • FIG. 3 is a fragmentary vertical section through the central portion of the check taken substantially along the line 33 of FIG. 1 looking in the direction of the arrows shown, however, without the device of the present invention;
  • FIG. 4 is a transverse section through the cylinder or housing taken along the line 4 4 of FIG. 1 looking in the direction of the arrows;
  • FIG. 5- is a vertical section through an optional form of manifold
  • FIG. 6 is a horizontal section through the manifold of FIG. 5 taken along the line 6-6 of FIG. 5 looking in the direction of the arrows.
  • FIG. 1 illustrates a conventional door check 10 of the surface mounted type.
  • the door check (FIG. 3) may be mounted by screws 11 to a wall 13 immediately above a doorway with the operating end 12 of a pinion shaft 14 extending downward from the door check housing 15.
  • An appropriate arm linkage 17 will be clamped atone end to the operating end 12 of the shaft 14 and slidably engaged at its other end in a track 19 secured by screws 21 to the door 23 such that as the door is opened, the pinion shaft 14 will be rotated in one direction and as the door closes, it will be rotated back to the starting position.
  • Such interconnection between the door check and the door is entirely conventional.
  • the housing 15 is internally longitudinally bored to define a cylinder 16.
  • the pinion shaft 14 spans the cylinder 16 and is mounted in appropriate pinion bearings 18 with appropriate seals on opposite sides of the cylinder.
  • the pinion shaft has an integral pinion 20 formed thereon within the cylinder 16.
  • the pinion 20 engages a rack piston 22 within the cylinder.
  • the rack piston may best be regarded as an elongated cylindrical member having a long transverse aperture 24 formed therein to leave cylindrical ends or heads 26 and'28 connected by opposite, longitudinally extending webs surface of web 32 has teeth formed thereon to define the rack 34 with which the pinion 20 engages.
  • FIGS. 1 and 2 The left end of the-cylinder l6 asseen in FIGS. 1 and 2 is closed by a plug 36 secured within the open end of the cylinder in fluid-tight relationship, and a dorm closing, strong, compression spring 38 is contained bedirection, thus advancing the rack piston 22 to the left and compressing the spring 38 (FIG. 1).
  • a dorm closing, strong, compression spring 38 is contained bedirection, thus advancing the rack piston 22 to the left and compressing the spring 38 (FIG. 1).
  • the pressure of the spring on the rack piston moves the piston to the right thus rotating the pinion in a counterclockwise direction and through the linkage with the door, draws the door shut.
  • the rack piston has one way, axial, fluid flow passages 40 and 42 through the heads 26 and 28, respectively, controlled by ball check valves 44 and 45 to forbid fluid flow from the faces of the rack piston heads into the central slot 24 but to permit flow from the central slot out the ends of the piston.
  • the top wall 43 I of the housing is of augmented thickness to accommodate check flow passages.
  • a back check system 48 which retards the movement of the door as it approaches its full open position. It includes a bore 50 extending perpendicularly through the wall 46 and opening into a shallow recess or groove 52 formed in the interior wall of the cylinder 16.
  • a second perpendicular bore more remote from the pinion likewise extendsthrough the wall 46 which is formed and tapped for the reception of a needle valve 56.
  • This bore opens into the cylinder at the intended end of'travel of the face of the cylindrical portion 26 of the rack piston in the door opening direction.
  • An intersecting bore 58 interconnects the passage 50 and the needle valve seat 54.
  • the bores 50 and 58 are plugged at their outer ends by plugs 60.
  • a bore 62 extending through the wall 46 into the cylinder and opening into the recess 52 in the interior cylinder wall.
  • the recess extends between and includes the opening ports of bores 50' and 62.
  • Bore 62 is conformed and tapped for the reception of a rapid close needle valve 66.
  • a plain bore 68 extends through wall 46 to the right of needle valve 66 and is plugged 60 at its outer end.
  • An interconnecting passage 74 is provided in through the end 76 of the cylinder housing 15 to interconnect the bores 62, 68 and 70 and is plugged 60 at its outer end. Needle valve 66 is adjusted to provide a relatively free flow of hydraulic fluid and needle valve 72 to provide a highly restricted flow; I
  • checkflow passages and the groove 52 have been shown in FIG. 3 as being situated on the vertical axis of'the cylinder 16, whereas, actually, the passages are offset from the axis and the groove 52 is in the upper left quadrant of the cylinder as shown in FIG 4 so that the groove 52 avoids the bearing structure 18 of the pinion shaft 14.
  • the housing 15 is provided at its righthand end with an internally threaded plug seat 78, and when the door check is employed solely as a dooropening and closingrate controller, such a plug will be emplaced.
  • the plug has been replaced by the door hold-open mechanism to which this invention is primarily directed, but it is believed important that the op eration of the door check itself by understood before embarking on a description of the hold open mechanism. Accordingly, let a simple plug be visualized as occupying the plug seat 78.
  • the cylinder will be filled I with hydraulic fluid.
  • the ball check valve 44 in head 26 closes, compelling fluid flow past the head and into the piston cavity 24 through the groove 52 until the head 26 passes the end of the groove and fluid flow must continue through needle valve 54, and ducts 58 and 50 to the groove 52.
  • the restraint imposed here is to cushion the linkage as the door approaches its fully open position.
  • a door hold assembly 80 is threaded into the right hand end plug seat 78 instead of the imagined plug.
  • the door hold assembly 80 includes a tubular shell 82 externally threaded at both its ends, one end being secured within the plug seat 78 and the other end 84 having mounted thereto a tubular solenoid shell 86, the solenoid shell being internally threaded to cooperate with the external threads at the end 84.
  • the shell 82 slidably contains a double walled, annular, cup-shaped, door hold piston 88 having an axial through passage 90, an inner wall 92, a base 94 confronting the rack piston 22 and an outer wall 96, all
  • base 94 of the piston has a bore through the bottom thereof stepping to a smaller diameter as at 102 which communicates with the annular cavity 98.
  • a check valve ball 104 is contained in the bore 100 between a ball check valve seat 106 press-fitted into the end of the bore and retained by ball-check valve seat retainer 108, and a spring 110 biasingthe check valve ball toward closure.
  • the piston is sealed against the inside wall of the shell 82 by a quad ring seal 112 contained in an appropriate circumferential groove in the outside surface of the piston adjacent its open end.
  • a cylindrical manifold 114 is contained within the outer end of the shell 82. Its inside face 116 has an annular groove 11-8 and an axial bore 120 extending only a short distance into the manifold.
  • the groove 118 has a sleeve 122 press-fitted into the outer circumference thereof which extends deep into the annular cavity 98- closing spring 38 such that it exerts no perceptible effect on the door closing operation but ensures that the piston 88 will follow the rack piston 22 in its movement.
  • the diameter of the sleeve 122 is appreciably less than the outside wall of the cavity 98 such that fluid may freely pass between the sleeve and that wall.
  • the axial bore 120 has a fluid return sleeve 126 press-fitted into it to extend into the axial passage 90 of the piston 88 in fluid tight relationship.
  • the seal is effected by a quad ring seal 128 contained in an enlargement 130 of the passage 90 at its end remote from the rack piston and secured therein by a backup 132.
  • the length of the sleeve 126 is such as to maintain its fluid-tight communicating relationship with the passage 90 throughout the range of movement of the piston 88.
  • the manifold has three annular grooves in the cylindrical periphery thereof, two of them 134, for sealing rings 136 and a central manifold groove 138 serving as a departure point for forming certain internal passages.
  • a blind hole 140 extends longitudinally into the manifold from the spring seat groove .118.
  • a radial intersecting bore 142 is formed from the groove 138 through the inside end of the bore 140 to the center of the manifold.
  • the axial fluid return bore 120 .stops short of the position occupied by bore 142 so asto isolate these bores from each other.
  • a passage 144 angles inwardly from the groove 138 to intersect the inside end of the axial bore 120.
  • a second passage 146 angles outwardly from the groove 138 toward the center line of the manifold. Although passages 144 and 146 are shown intersecting for reasons of clarity, the groove 138makes possible different points of entry of those passages thereinto. Adjacent its outer face 148, the manifold has a circumferential rib 150 thereabout.
  • the outer face 148 of the manifold has an annular groove 152 therein to receive a sealing ring 154, and inwardly of the groove, an annular nipple 156.
  • Centered in the nipple is an axial plunger chamber 158 proportioned to accommodate loosely a plunger 160.
  • the plunger is a generally cylindrical body a little longer than the chamber 158 with a tapering inner end 162 socketed to accommodate'a valve ball 164.
  • Extending axially from the bottom of the plunger chamber 158 is a bore 166 which intersects bore 142.
  • the shoulder 168 at which bore 166 meets the floor of the plunger chamberv 158 constitutes a seat for the ball 164.
  • a solenoidcap 170 consisting of a one piece, deeply drawn cup or thimble with a flange 172 about its mouth is contained against the outer face 148 of the manifold.
  • the interior of the cup flts closely on the nipple 156 of the manifold andthe flange 172 thereof is of the same diameter as the flanged outer face of the manifold.
  • the interior of the solenoid shell 86 has a rib 174 thereabout, and as the solenoid shell is threaded on the outer end of the piston shell 82, the rib 150 of the manifold and the flange 172 of the cup are caught between the end 176 of the solenoid shell 82 and the rib 174 to make, with the sealing rings 154 and 136, a fluid-tight end for the assembly.
  • a solenoid winding 184 In the annular space between the wall 180 of the cup and the outward extension 182 of the solenoid shell 80 is located a solenoid winding 184, and an armature 186 is'situated within the cup in a position to be moved upon energization of the solenoid winding.
  • the solenoid winding is contained in position by an annular sobefore, discharging fluid into the vacated space behind it through the ball valve 44 in the piston head 28.
  • the door hold piston 88 will follow the rack piston in its movement under influence of the spring 124, the ball I check valve 104 yieldingto admit fluid therethrough into the annular cavity 98 and thence around the loose fitting sleeve 122 into the space vacated by the door hold piston 88.
  • the spring 38 expands moving the rack piston to the right which in turn forces the door hold piston to the right before it against the force of the spring 124.
  • the ball check valve 104 closes and the fluid contained to the right of the door hold piston is forced around the spring retainer sleeve 122 into the space occupiedby the follower spring 124 and into the passages 140, 142, and 166 to the solenoid valve seat 168.
  • the solenoid valve ball 164 is displaced from the seat by fluid pressure, and fluid flow continues through passages 146 and 144 to the fluid return sleeve 126, through the door hold piston, and to the advancing face of the head 28 of the rack piston 22. Thereafter, the fluid bypasses that head as described in conjunction with the door checkmechanism proper.
  • Energization of the solenoid 184 will cause the armature to bear on the plunger 160 to hold the ball 164 against its seat and so prevent the passage of the hydrualic fluid from the right side of the door hold piston and thus maintain the door in an open'position. Even when the plunger is closed on the seat 168, it holds the armature away from the center of the solenoid field, so positive closing force exists. It will be appreciated that'the door need not be open to a fully open position for this retention to be effective. lf'the solenoid 184 is energized, the door will hold at any partially open degree to which it may have been moved.
  • the force withwhich the door is held open is mea- 'sured by the magnetic thrust of the armature 186 acting on the valve ball 164 against its seat.
  • the solenoid will be so selected that this force will be specifi-' cally limited. lnother words, it is desirable that the solenoid be capable of being manually overpowered.
  • the rack piston 22 which operates in the area of the fluid escape ports by whichthe rate of closure is governed has not and need not have anything in the way of deformable sealingrings whichmight be damaged by their passage to and through the ports.
  • the door holding structure which does demand such rings is wholly displaced from the area of these ports and can operate within a continuous, smooth, cylinder surface.
  • there is a total avoidance of any exterior sealing of moving parts such as about the solenoid con-' trolled valve 160 through which leakage and drip might occur.
  • the valve plunger 160 and the armature 186 fit relatively loosely within their associated containers. Hydraulic fluid may and will leak past the valve member 160 and the armature 186 into the cup 170, but such presence of fluid is wholly contained by static seals.
  • the door holding device is accessory in nature and may be incorporated into an existing closure simply by removing an end plug and substituting the device for it.
  • the device lies within the longitudinally projected walls of the door check proper and lends itself to a masking by panels continuous with the side walls of the door check such that the only visible decorative consequence of its incorporation is an elongation of the unit.
  • the manifold 200 is very similar in exterior contour to the manifold '114 of the first described form. Thus, it possesses an annular groove 118 in its inside face to receive the sleeve 122 and an axial blind bore 120 to receive the fluid return sleeve 126.
  • the two manifolds are essentially identical.
  • the exhaust passage 230, 230a differs from the first described form.
  • the immediate point of exhaust from the ball valve plunger chamber, instead of being situated immediately adjacent the ball valve seat 218, is
  • plunger head 216 will cover the exhaust port 232.
  • a bore 234 extends parallel to the axis of the manifold ferent valve body or plunger202 and a differently situated exhaust port 204 from the plunger chamber206.
  • the plunger 202 mounts a valve checkball 208, as before, at its tapered inner end 210 which diverges to a cylindrical portion 2l2.which stands well clear of the walls of the'valve chamber 206 so as to permit a free flow of fluid therepast.
  • a valve checkball 208 which diverges to a cylindrical portion 2l2.which stands well clear of the walls of the'valve chamber 206 so as to permit a free flow of fluid therepast.
  • the plunger is necked down as at 214 and then expands again to a plunger-head 216 which fits as.
  • a bore 220 extends from the annular groove 118 to intersect a radial bore 222 extending from the manifold groove 138 through the center of the manifold 200 which in turn is intersected by a small diameter bore 224 extending from the plunger chamber 206 to the radial bore 222.
  • the radial bore 222 is plugged 200, intersecting the exhaust port 232 and going to a point radially aligned with the manifold groove 138.
  • a hole 236 extends radially from the groove to intersect the bore 234.
  • another bore 240 extends from the ring to the central fluid return tube 126 to'constitute the leg 230 of the fluid exhaust passage, as in the principal described form.
  • FIGS. 5 and 6 show two planes through-the manifold whereas FIGS. 1 and 2 show only a single plane in order to make more clear the relationship of the parts.
  • the fluid inlet 140, 132, 166 and the two legs 146 and 144 of the fluid outlet need not all be situated in the same plane as shown in FIGS.'1 and 2.
  • the passage 144 of FIGS. 1 and 2 could occupy the same diametrically .op-
  • the plunger 202 fits the chamber 206 in near fluid-tight relationship in this modification, means must be provided for supplying fluid to or exhausting fluid from the outer end of the plunger as contained in the cap 170. That part 242 of groove 238 outwardly of the plunger chamber exhaust port 232, walled in by the cap 170 is in open communication with the interior of the cap, connecting it to the zero pressure exhaust side of the solenoid valve, so fluid is free to move back and forth.
  • the armature in this embodiment is loose within the cap as in the first described form.
  • the plunger 202 be fluid-tight within the chamber since the back side of the plunger is at zero pressure as long as the fit is close enough to hold the leakage level well below the input capacity of the inlet system to and through the solenoid valve. Given the viscosity of the hydraulic fluid, this is easily achieved by simple machining, and so again, sealing rings are avoided.
  • a door check of the type which includes means defining a cylinder, a member slidable within said cylinder, resilient means biasing said member toward one end of said cylinder, means for connecting said door check to a door and frame combination to move said member relative to said cylinder against said biasing means upon opening said door, hydraulic fluid in said cylinder and means for permitting fluid flow counter to the movement of said member to restrain the movement of said door; a door hold-open mechanism comprising means providing an extension of said cylinder on that end thereof toward which said member is biased, a piston resiliently biased Within said extension to follow said member and having a one way flow passage therein to admit fluid therethrough upon following movement against said resilient means, means closing said extension, said closing means including a passage having a valve seat therein for delivering fluid from the downstream side of said one way flow passage to the upstream side thereof, a valve for closing against said valve seat, and electrically actuated means for operating said valve.
  • valve is energized with sufficient force to close against the pressure imposed by said resilient means but insufficient force to hold against a pressure in excess of that of said resilient means.
  • said resilient means establishes a pressure on the fluid between said piston and said closing means
  • said valve has a face larger than said seat and said fluid delivery passage includes a valve chamber on the downstream side of said valve seat containing closely said valve, and said elecon said seat and including additionally a thimble mounted in fluid-tight relationship to said cylinder defining means and containing the end of said valve assembly remote from said face, and magnetic valve operating means on the exterior of said thimble;
  • said fluid delivery passage includes a tube mounted in said closing means and extending through said piston throughout the range of movement thereof.
  • a combined door check and door hold open device including resilient means for urging a door toward closure upon expansion thereof
  • valve having a face larger than said valve seat, a valve chamber downstream of said seat, a portion of said valve downstream of said face closely contained in said chamber to substantially prevent fluid flow past said valve and allow a pressure drop across said valve when'said valve is open, means providing a fluid escape passage opening into said valve chamber upstream of said valve face at an open position of said valve, means providing a fluid escape passage from said valve chamber behind said closely contained portion of said valve when in said open position, and means adapted to hold said valve resiliently against said seat with a force in excess of the product of said pressure and said valve seat area and less than the product of said pressure and said face area.

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  • Closing And Opening Devices For Wings, And Checks For Wings (AREA)
  • Power-Operated Mechanisms For Wings (AREA)
  • Check Valves (AREA)
  • Lock And Its Accessories (AREA)
  • Magnetically Actuated Valves (AREA)
US00276122A 1972-07-28 1972-07-28 Door hold open attachment for a door check Expired - Lifetime US3852846A (en)

Priority Applications (13)

Application Number Priority Date Filing Date Title
US00276122A US3852846A (en) 1972-07-28 1972-07-28 Door hold open attachment for a door check
JP1023373A JPS5418499B2 (enrdf_load_html_response) 1972-07-28 1973-01-24
CA163,755A CA983059A (en) 1972-07-28 1973-02-14 Door hold open attachment for a door check
ZA731196A ZA731196B (en) 1972-07-28 1973-02-20 A door hold open attachment for a door check
SE7302324A SE385723B (sv) 1972-07-28 1973-02-20 Stengningsanordning for dorr
GB1800975A GB1414852A (en) 1972-07-28 1973-02-26 Door check and door hold open devices
GB937373A GB1414851A (en) 1972-07-28 1973-02-26 Door check mechanisms
DE2311343A DE2311343C2 (de) 1972-07-28 1973-03-05 Türschließer mit einer Schließfeder
FR7312858A FR2195251A5 (enrdf_load_html_response) 1972-07-28 1973-04-10
IT23942/73A IT987272B (it) 1972-07-28 1973-05-10 Attacco per tenere aperta una porta per un meccanismo di con trollo di porte
JP7576474A JPS5420268B2 (enrdf_load_html_response) 1972-07-28 1974-07-02
SE7511319A SE399096B (sv) 1972-07-28 1975-10-09 Kombinerad stengningsanordning och sperranordning for dorr
CA238,399A CA996963A (en) 1972-07-28 1975-10-27 Door hold open attachment for a door check

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00276122A US3852846A (en) 1972-07-28 1972-07-28 Door hold open attachment for a door check

Publications (1)

Publication Number Publication Date
US3852846A true US3852846A (en) 1974-12-10

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ID=23055273

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Application Number Title Priority Date Filing Date
US00276122A Expired - Lifetime US3852846A (en) 1972-07-28 1972-07-28 Door hold open attachment for a door check

Country Status (9)

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US (1) US3852846A (enrdf_load_html_response)
JP (2) JPS5418499B2 (enrdf_load_html_response)
CA (1) CA983059A (enrdf_load_html_response)
DE (1) DE2311343C2 (enrdf_load_html_response)
FR (1) FR2195251A5 (enrdf_load_html_response)
GB (2) GB1414852A (enrdf_load_html_response)
IT (1) IT987272B (enrdf_load_html_response)
SE (2) SE385723B (enrdf_load_html_response)
ZA (1) ZA731196B (enrdf_load_html_response)

Cited By (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3964125A (en) * 1975-06-12 1976-06-22 Henry William Tansley Electromagnetic door holding device
US4050114A (en) * 1976-08-30 1977-09-27 Eaton Corporation Door closer assembly
US4080687A (en) * 1975-09-19 1978-03-28 Dorma-Baubeschlag G.M.B.H. & Co. K.G. Door closer
US4115897A (en) * 1977-10-11 1978-09-26 Eaton Corporation Zero force hold open door closer
DE2751859A1 (de) * 1977-11-21 1979-05-23 Dorma Baubeschlag Tuerschliesser
US4234996A (en) * 1978-03-30 1980-11-25 Dorma-Baubeschlag Gmbh & Co. Kg. Automatic door closer constructed for releasably holding a door in a predetermined partly open position
US4237578A (en) * 1976-05-11 1980-12-09 Dorgard Limited Releasable retaining means and fire door control system
US4376323A (en) * 1980-01-16 1983-03-15 Dorma-Baubeschlag Gmbh & Co. Kg Automatic door closer
DE3202966A1 (de) * 1982-01-29 1983-08-11 Geze Gmbh, 7250 Leonberg Elektrohydraulische antriebseinheit fuer fluegel von tueren o.dgl.
US4414703A (en) * 1981-09-01 1983-11-15 Schlage Lock Company Door closer and holder
US4660250A (en) * 1984-06-23 1987-04-28 Dorma-Baubeschlag Gmbh & Co. Kg. Door closer
US4670939A (en) * 1986-03-25 1987-06-09 Fisher Samuel H Device for holding a door open with permanent magnet actuated ball valve affecting hydraulic cylinder
US5502874A (en) * 1994-08-11 1996-04-02 Schlage Lock Company Speed regulating valve for fluid filled door closers
US5913763A (en) * 1993-07-19 1999-06-22 Dorma Door Controls, Inc. Method for controlling the operational modes of a door in conjunction with a mechanical door control mechanism
US6047440A (en) * 1998-11-16 2000-04-11 Schlage Lock Company Non-rotating pinion cap
US6640387B2 (en) 1999-12-28 2003-11-04 Ricardo Alonso Damper assembly that opts to open doors for usage with reciprocating door closer devices
US6681525B1 (en) * 2000-11-15 2004-01-27 David Edmond Dudley Handicapped train-station gate
US20040034968A1 (en) * 2002-06-14 2004-02-26 Hufcor, Inc. 360 Degree hinge and door closure apparatus
EP1612357A1 (de) * 2004-06-30 2006-01-04 GEZE GmbH Feststellvorrichtung für einen Türschliesser
US20080092446A1 (en) * 2004-12-17 2008-04-24 Dorma Gmbh + Co. Kg Door Drive
US20080184627A1 (en) * 2007-02-02 2008-08-07 Hilger Timothy J Door motion controller assembly
US20090093913A1 (en) * 2007-04-24 2009-04-09 Copeland Ii David James Door closer assembly
US20090107051A1 (en) * 2007-10-29 2009-04-30 Joseph Talpe Closure mechanism
RU2422608C2 (ru) * 2006-06-01 2011-06-27 Дорма Гмбх+Ко. Кг Привод двери с изменяемым во время движения двери предварительным натяжением пружины
US8109038B2 (en) 2004-06-30 2012-02-07 Yale Security Inc. Door operator
US8225458B1 (en) 2001-07-13 2012-07-24 Hoffberg Steven M Intelligent door restraint
US20120233812A1 (en) * 2009-12-01 2012-09-20 Dorma Gmbh +Co. Kg Door Closer With Free-Swing Function
US8415902B2 (en) 2010-04-16 2013-04-09 Yale Security Inc. Door closer with calibration mode
US8527101B2 (en) 2010-04-16 2013-09-03 Yale Security Inc. Door closer assembly
US8547046B2 (en) 2010-04-16 2013-10-01 Yale Security Inc. Door closer with self-powered control unit
US8564235B2 (en) 2010-04-16 2013-10-22 Yale Security Inc. Self-adjusting door closer
US8773237B2 (en) 2010-04-16 2014-07-08 Yale Security Inc. Door closer with teach mode
US8779713B2 (en) 2010-04-16 2014-07-15 Yale Security Inc. Door closer with dynamically adjustable latch region parameters
US9163446B2 (en) 2010-03-17 2015-10-20 Yale Security Inc. Door control apparatus
US10370885B1 (en) * 2015-12-31 2019-08-06 Larson Manufacturing Company Of South Dakota Hydraulic door closer with fluid overflow chamber
CN112834618A (zh) * 2021-01-25 2021-05-25 河北建筑工程学院 一种基于传感技术的混凝土声发射损伤识别系统
US11091947B2 (en) * 2016-01-05 2021-08-17 Cmech (Guangzhou) Ltd. Hydraulic door closer capable of reducing oil-pressure therein in high temperature
US11105135B2 (en) 2015-12-31 2021-08-31 Larson Manufacturing Company Of South Dakota, Llc Hydraulic door closer with fluid overflow chamber

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GB1504142A (en) * 1974-05-23 1978-03-15 Eaton Ltd Door closer
JPS5444996Y2 (enrdf_load_html_response) * 1975-01-29 1979-12-24
JPS5195239U (enrdf_load_html_response) * 1975-01-29 1976-07-30
DE2608671A1 (de) * 1976-03-03 1977-09-08 Dorma Baubeschlag Selbsttaetiger tuerschliesser
DE2611607A1 (de) * 1976-03-19 1977-09-29 Eaton Gmbh Feststellvorrichtung fuer tuer-, tor- o.dgl. fluegel
EP0080863B1 (en) * 1981-11-28 1985-09-04 Jebron Limited Door control device
ZA839389B (en) * 1982-12-24 1984-07-25 Hatrick Ind Ltd Fluid operated device
DE8801897U1 (de) * 1988-02-13 1988-03-24 Gretsch-Unitas GmbH Baubeschläge, 7257 Ditzingen Türschließer
RU2340755C1 (ru) * 2007-03-14 2008-12-10 Борис Алексеевич Хозяинов Электромагнитный дверной тормоз
GB2577542B (en) * 2018-09-28 2021-11-03 Assa Abloy Ltd Door-closer

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US1883957A (en) * 1927-10-17 1932-10-25 Honeywell Regulator Co Magnetically operated valve
US1857133A (en) * 1930-04-17 1932-05-10 Bommer Emil Door check and closer
US2394105A (en) * 1944-01-22 1946-02-05 Grayson Heat Control Ltd Valve
US2570450A (en) * 1946-02-19 1951-10-09 Penn Electric Switch Co Three-way solenoid valve
US2644662A (en) * 1946-05-20 1953-07-07 Timken Axle Co Detroit Low rate oil flow valve
US2818915A (en) * 1955-07-25 1958-01-07 Pfeiffer Nicholas Leonard Reserve fuel supply for vehicles
US2909801A (en) * 1957-07-01 1959-10-27 Oscar C Rixson Company Door closer
US3120943A (en) * 1962-09-05 1964-02-11 Allis Chalmers Mfg Co Impulse solenoid actuated pivoted valve
US3178151A (en) * 1963-01-23 1965-04-13 Marquardt Corp Linear displacement electromagnetic actuator
US3420496A (en) * 1967-01-09 1969-01-07 Macbee Eng Corp Solenoid valve assembly
US3446474A (en) * 1967-07-31 1969-05-27 Borg Warner Hydraulic pilot valve
US3546734A (en) * 1968-07-10 1970-12-15 Schlage Lock Co Adjustable backcheck mechanism for door closers
US3593241A (en) * 1969-07-18 1971-07-13 Alfred J Ludwig Solenoid valve having a slotted flux sleeve for nesting the winding leads
US3696462A (en) * 1971-01-11 1972-10-10 Republic Industries Combined door checking and door hold open mechanism

Cited By (65)

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US3964125A (en) * 1975-06-12 1976-06-22 Henry William Tansley Electromagnetic door holding device
US4080687A (en) * 1975-09-19 1978-03-28 Dorma-Baubeschlag G.M.B.H. & Co. K.G. Door closer
US4237578A (en) * 1976-05-11 1980-12-09 Dorgard Limited Releasable retaining means and fire door control system
US4050114A (en) * 1976-08-30 1977-09-27 Eaton Corporation Door closer assembly
US4115897A (en) * 1977-10-11 1978-09-26 Eaton Corporation Zero force hold open door closer
DE2751859A1 (de) * 1977-11-21 1979-05-23 Dorma Baubeschlag Tuerschliesser
US4263694A (en) * 1977-11-21 1981-04-28 Dorma-Baubeschlag Gmbh & Co. Kg Door closer
US4234996A (en) * 1978-03-30 1980-11-25 Dorma-Baubeschlag Gmbh & Co. Kg. Automatic door closer constructed for releasably holding a door in a predetermined partly open position
US4376323A (en) * 1980-01-16 1983-03-15 Dorma-Baubeschlag Gmbh & Co. Kg Automatic door closer
US4483043A (en) * 1980-01-16 1984-11-20 Dorma-Baubechlag Gmbh & Co. Kg Automatic door closer
US4414703A (en) * 1981-09-01 1983-11-15 Schlage Lock Company Door closer and holder
DE3202966A1 (de) * 1982-01-29 1983-08-11 Geze Gmbh, 7250 Leonberg Elektrohydraulische antriebseinheit fuer fluegel von tueren o.dgl.
US4660250A (en) * 1984-06-23 1987-04-28 Dorma-Baubeschlag Gmbh & Co. Kg. Door closer
US4670939A (en) * 1986-03-25 1987-06-09 Fisher Samuel H Device for holding a door open with permanent magnet actuated ball valve affecting hydraulic cylinder
US5913763A (en) * 1993-07-19 1999-06-22 Dorma Door Controls, Inc. Method for controlling the operational modes of a door in conjunction with a mechanical door control mechanism
US5502874A (en) * 1994-08-11 1996-04-02 Schlage Lock Company Speed regulating valve for fluid filled door closers
US6047440A (en) * 1998-11-16 2000-04-11 Schlage Lock Company Non-rotating pinion cap
US6640387B2 (en) 1999-12-28 2003-11-04 Ricardo Alonso Damper assembly that opts to open doors for usage with reciprocating door closer devices
US6681525B1 (en) * 2000-11-15 2004-01-27 David Edmond Dudley Handicapped train-station gate
US11187022B1 (en) 2001-07-13 2021-11-30 Steven M. Hoffberg Intelligent door restraint
US9995076B1 (en) 2001-07-13 2018-06-12 Steven M. Hoffberg Intelligent door restraint
US9045927B1 (en) 2001-07-13 2015-06-02 Steven M. Hoffberg Intelligent door restraint
US9121217B1 (en) 2001-07-13 2015-09-01 Steven M. Hoffberg Intelligent door restraint
US8225458B1 (en) 2001-07-13 2012-07-24 Hoffberg Steven M Intelligent door restraint
US20040034968A1 (en) * 2002-06-14 2004-02-26 Hufcor, Inc. 360 Degree hinge and door closure apparatus
EP1612357A1 (de) * 2004-06-30 2006-01-04 GEZE GmbH Feststellvorrichtung für einen Türschliesser
US8499495B2 (en) 2004-06-30 2013-08-06 Yale Security Inc. Door operator
US8109038B2 (en) 2004-06-30 2012-02-07 Yale Security Inc. Door operator
US20080092446A1 (en) * 2004-12-17 2008-04-24 Dorma Gmbh + Co. Kg Door Drive
US8393054B2 (en) * 2004-12-17 2013-03-12 Dorma Gmbh + Co. Kg Door operator
RU2422608C2 (ru) * 2006-06-01 2011-06-27 Дорма Гмбх+Ко. Кг Привод двери с изменяемым во время движения двери предварительным натяжением пружины
US20080184627A1 (en) * 2007-02-02 2008-08-07 Hilger Timothy J Door motion controller assembly
US7865999B2 (en) * 2007-02-02 2011-01-11 Yale Security Inc. Door motion controller assembly
US9399884B2 (en) 2007-04-24 2016-07-26 Yale Security Inc. Door closer assembly
US8600567B2 (en) 2007-04-24 2013-12-03 Yale Security Inc. Door closer assembly
US20110231023A1 (en) * 2007-04-24 2011-09-22 Yale Security Inc. Door closer assembly
US7971316B2 (en) * 2007-04-24 2011-07-05 Yale Security Inc. Door closer assembly
US20090093913A1 (en) * 2007-04-24 2009-04-09 Copeland Ii David James Door closer assembly
US20090107051A1 (en) * 2007-10-29 2009-04-30 Joseph Talpe Closure mechanism
US20120233811A1 (en) * 2009-12-01 2012-09-20 Dorma Gmbh + Co. Kg Door closer
US9187942B2 (en) * 2009-12-01 2015-11-17 Dorma Deutschland Gmbh Hydraulic directional solenoid valve and door closer having a hydraulic directional solenoid valve
US20120233812A1 (en) * 2009-12-01 2012-09-20 Dorma Gmbh +Co. Kg Door Closer With Free-Swing Function
US20120240351A1 (en) * 2009-12-01 2012-09-27 Dorma Gmbh + Co. Kg Door closer comprising device for preventing a spring-back
US20120279013A1 (en) * 2009-12-01 2012-11-08 Dorma Gmbh + Co. Kg Hydraulic directional solenoid valve and door closer having a hydraulic directional solenoid valve
US20130000074A1 (en) * 2009-12-01 2013-01-03 Volker Bienek Door Closer Comprising Cam Drive
US8806715B2 (en) * 2009-12-01 2014-08-19 Dorma Gmbh + Co. Kg Door closer comprising device for preventing a spring-back
US8819895B2 (en) * 2009-12-01 2014-09-02 Dorma Gmbh + Co. Kg Door closer with free-swing function
US8826494B2 (en) * 2009-12-01 2014-09-09 Dorma Gmbh + Co. Kg Door closer comprising cam drive
US8875344B2 (en) * 2009-12-01 2014-11-04 Dorma Gmbh + Co. Kg Door closer
US9163446B2 (en) 2010-03-17 2015-10-20 Yale Security Inc. Door control apparatus
US8415902B2 (en) 2010-04-16 2013-04-09 Yale Security Inc. Door closer with calibration mode
US8779713B2 (en) 2010-04-16 2014-07-15 Yale Security Inc. Door closer with dynamically adjustable latch region parameters
US8547046B2 (en) 2010-04-16 2013-10-01 Yale Security Inc. Door closer with self-powered control unit
US8773237B2 (en) 2010-04-16 2014-07-08 Yale Security Inc. Door closer with teach mode
US9523230B2 (en) 2010-04-16 2016-12-20 Yale Security Inc. Door closer assembly
US8527101B2 (en) 2010-04-16 2013-09-03 Yale Security Inc. Door closer assembly
US8564235B2 (en) 2010-04-16 2013-10-22 Yale Security Inc. Self-adjusting door closer
US11105135B2 (en) 2015-12-31 2021-08-31 Larson Manufacturing Company Of South Dakota, Llc Hydraulic door closer with fluid overflow chamber
US11105134B2 (en) 2015-12-31 2021-08-31 Larson Manufacturing Company Of South Dakota, Llc Hydraulic door closer with fluid overflow chamber
US10370885B1 (en) * 2015-12-31 2019-08-06 Larson Manufacturing Company Of South Dakota Hydraulic door closer with fluid overflow chamber
US11091947B2 (en) * 2016-01-05 2021-08-17 Cmech (Guangzhou) Ltd. Hydraulic door closer capable of reducing oil-pressure therein in high temperature
US11091948B2 (en) * 2016-01-05 2021-08-17 Cmech (Guangzhou) Ltd. Hydraulic door closer capable of reducing oil-pressure therein in high temperature
US12071805B2 (en) 2016-01-05 2024-08-27 Cmech (Guangzhou) Ltd. Hydraulic door closer capable of reducing oil-pressure therein in high temperature
CN112834618A (zh) * 2021-01-25 2021-05-25 河北建筑工程学院 一种基于传感技术的混凝土声发射损伤识别系统
CN112834618B (zh) * 2021-01-25 2022-04-01 河北建筑工程学院 一种基于传感技术的混凝土声发射损伤识别系统

Also Published As

Publication number Publication date
JPS4944543A (enrdf_load_html_response) 1974-04-26
SE7511319L (sv) 1975-10-09
JPS5124047A (enrdf_load_html_response) 1976-02-26
SE399096B (sv) 1978-01-30
IT987272B (it) 1975-02-20
GB1414851A (en) 1975-11-19
CA983059A (en) 1976-02-03
SE385723B (sv) 1976-07-19
JPS5418499B2 (enrdf_load_html_response) 1979-07-07
GB1414852A (en) 1975-11-19
FR2195251A5 (enrdf_load_html_response) 1974-03-01
JPS5420268B2 (enrdf_load_html_response) 1979-07-21
DE2311343C2 (de) 1983-07-28
ZA731196B (en) 1973-11-28
DE2311343A1 (de) 1974-01-31

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