US3105264A - Door closing door checks - Google Patents

Door closing door checks Download PDF

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US3105264A
US3105264A US118339A US11833961A US3105264A US 3105264 A US3105264 A US 3105264A US 118339 A US118339 A US 118339A US 11833961 A US11833961 A US 11833961A US 3105264 A US3105264 A US 3105264A
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door
lever
latch
piston rod
cylinder
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US118339A
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John A Truhon
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    • 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
    • E05F3/02—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with pneumatic piston brakes
    • 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
    • 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
    • Y10S16/00—Miscellaneous hardware, e.g. bushing, carpet fastener, caster, door closer, panel hanger, attachable or adjunct handle, hinge, window sash balance
    • Y10S16/09—Hydraulic actuated checks, closers
    • 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
    • Y10S16/00—Miscellaneous hardware, e.g. bushing, carpet fastener, caster, door closer, panel hanger, attachable or adjunct handle, hinge, window sash balance
    • Y10S16/17—Checks and closers, holding means

Definitions

  • a further object of the invention is to accomplish the foregoing in a simple, inexpensive and facile manner which includes incorporating a novel and effective manually set and readily releasable hold-open lever device on the piston rod end of an otherwise conventional air cushion type door closing door check for storm doors, screen doors, and the like.
  • FIG. 1 is a top plan view of a door closing door check embodying the quick manually set and readily releasable hold-open device of the invention, the said door check and hold-open device being shown in their holdcpen position as when a door equipped therewith has been swung partially or substantially fully open and the hold open device has been manually set.
  • FIG. 2 is a top plan view similar to FIG. 1, but with the hold-open device released and the door closing door check shown in the door-closed position.
  • FIG. 3 is an enlarged end elevational view taken on the line 3-3 of FIG. 2 showing the quick manually set and readily releasable hold-open device of the invention in its normal released position.
  • FIG. 4 is an enlarged side elevational view taken on the line 44 of FIG. 2 also showing the quick manually set and readily released hold-open device of the invention in its released position.
  • FIG. 5 is an inside elevational view of a storm door or screen door side hinged to a door frame and equipped with a door closing door check embodying the invention
  • FIG. 6 is a top plan view of the storm door or screendoor, door frame and door check shown in FIG. 5 with the door swung substantially fully open, the door check of the invention having been manually set to releasably hold the said screen door in its open position.
  • a door closing door check 16 em bodying manually set quick release means 30' illustrating the invention is shown in its door-open position in FIGS. 1 and 6, and in its released or door-ciosed position in FIGS. 2, 3, 4 and 5.
  • FIGS. 5 and 6 A typical installation of a door closing door check 11 of the invention is best shown in FIGS. 5 and 6 on a storm or screen door 11 side hinged at 12 to a door frame 13 setting on a sill 14 and in a wall 15.
  • Suitable bifurcated brackets 16 and 17 each with vertical hinge pins are employed to pivotally connect the cylinder 21) and the piston rod 22 of the piston 21 of the door closing door check 10 to the door 11 and the door frame 13 respectively.
  • FIG. 5 shows the door 11 in its closed position
  • FIG. 6 shows the door 11 in its open position where it is releasably held by the manually set quick release means 30.
  • the door closing door check It ⁇ is preferably constructed of a cylinder 29 and has a piston 21 reciprocatingly mounted therein.
  • the said piston 21 has a piston rod 22 fixed at one end thereto with its free end reciprocating mounted through a cylinder head 23 on one end of the said cylinder 20.
  • the manually engageable quick release means 30 of the invention is preferably incorporated on the outer end of the said cylinder head 23.
  • the free end of the said piston rod 22 is preferably flat-t tened and bored at 22-4 to accommodate the hinge pin of the bifurocated bracket 16.
  • the opposite end of the cylinder 20 is capped with a cylinder head 24 preferably incorporating an ear bored at 24% to accomnodate the hinge pin of the bifurcated bracket 17.
  • the piston 21 may be of any suitable construction, it being indicated in FIGS. 1 and 2 to be of a well-known flexible neoprene or rubber cup sealed type. Between the piston 21 and the cylinder head 23 and freely disposed around the piston rod 22 is a compression spring 25 shown compressed in FIG. 1 as when the door 11 is substantially fully opened, and extended in FIG. 2 as when the said door 11 is fully closed.
  • the cylinder head 24 is provided with a spring loaded ball check valve 26 adjustable by an adjusting screw 27 having a longitudinal air passage 27% therethrough.
  • a spring loaded ball check valve 26 adjustable by an adjusting screw 27 having a longitudinal air passage 27% therethrough.
  • any type of ball check valve 26 may be employed which will regulate the amount of air passing out of the cylinder 29 when the piston 21 is urged to the right hand end of the cylinder 20 as viewed in FIG. 2 during the spring closing of the door 11, thus regulating the rate of door closing and checking its motion as it approaches its fully closed position.
  • the flexible cup type packing 210 of the piston 21 permits air in the spring chamber 20% of the cylinder 29 to move freely to the air chamber 2M thereof.
  • the manually set quick release hold-open means as comprises a holdopen lever latch 31 pivoted to the outer end of the cylinder head 23 on a pivot pin 32 extending through a pair of laterally spaced nubs 239 preferably formed integral with and extending outwardly from the outer. end 231 of the said cylinder head 23.
  • the said pivot pin 32 is located off-center in respect to the piston rod 22 which reciprocates through a central aperture 232 pro vided in the said cylinder head 23.
  • the said hold-open a lever latch 31 is preferably formed with a pair of laterally spaced ears 31d bent normal thereto which are suitably apertured for pivotally mounting the said lever latch 31 on pivot pin 32, the said ears 310 being preferably disposed adjacent to and inwardly of the said spaced nubs 23% extending outwardly from the said cylinder head 23.
  • the short or stop end of the lever latch 31 is preferably bent to form a stop 311 which is of the correct length to hold the said lever latch 31 parallel to the outer end 231 of the cylinder head 23 when the said lever latch is rotated about the pivot pin 32 clockwise as viewed in FIG. 2.
  • the long or operating end of the lever latch 31 is provided with an aperture 312 therethrough slightly larger in diameter than the diameter of the piston rod 22 so that the said piston rod 22 is free to reciprocate through the lever latch 31 when it is disposed in an unlatched position parallel to the outer end 231 of the cylinder head 23, see FIG. 2.
  • the said long or operating end of the lever latch 31 extends a sufficient distance outwardly of the piston rod 22 to provide an operating tab
  • a spring loaded plunger 35 is reciprocatingly mounted in a suitable bore 235 in the cylinder head 23 below the lever latch 31 inwardly of the operating tab 313 thereof, which spring loaded plunger constantly urges the lever latch 31 to pivot clockwise as viewed in FIG. 1 to its unlatched position shown in FIG. 2.
  • the lever latch 31 is normally disposed in its unlatched position shown in FIG. 2.
  • the piston rod 22 is free to reciprocate through the aperture 312 provided therefor in the said lever latch 31.
  • the wall of the lever latch 31 defining the said aperture 312 therethrough be drilled normal to the surface thereof with relatively sharp upper and lower circumferential edges so that when the said lever latch 31 is manually pressed and pivoted to its locked position shown in FIG. 1 after the door 11 has been manually partially or substantially opened, the said lever latch 31 will become engaged with the piston rod 22 upon release of the door for closing by the door closing door check 16 locking the said door check 1d against movement tending to close the door 11.
  • a spring loaded plunger 35 is reciprocatingly mounted in a suitable bore 233 in the cylinder head 23 below the lever latch 31 inwardly of the operating tab 313 thereof, which spring loaded plunger constantly urges the lever latch 31 to pivot clockwise as viewed in FIG. 1 to its unlatched position shown in FIG. 2.
  • the lever latch 31 is normally disposed in its unlatched position shown in FIG. 2.
  • the piston rod 22 is free to reciprocate through the aperture 312 provided therefor in the said lever latch 31.
  • the wall of the lever latch 31 defining the said aperture 312 therethrough be drilled normal to the surface thereof with relatively sharp upper and lower circumferential edges so that when the said lever latch 31 is manually pressed and pivoted to its locked position shown in FIG. 1 after the door 11 has been manually partially or substantially opened, the said lever latch 31 will become engaged with the piston rod 22 upon release of the door for closing by the door closing door check lit locking the said door check 14 ⁇ against movement tending to close the door 11.
  • the door 11 may be releasably held in a partially open or substantially fully open position by the manually set quick release hcld-open means 30 by the simple expedient of pressing the operating tab 313 of the hold-open lever latch 31 and releasing the door for closing by the door closing door check it? while maintaining pressure on the said pressure tab 313.
  • the hold-open means so immediately makes the door closing door check inoperative until the hold-open lever latch 31 is red leased by manually pushing the door d1 ever-so-slightly toward its fully open position.
  • the improved manually set quick release hold-open means 3%? for door checks it ⁇ is very simple, extremely convenient, and may be applied to various types of door closing door checks it) at a minimum of cost, thereby providing a desirable and trouble-free means for readily holding a swinging door in any partial or substantially fully open position, and subsequently releasing it for closing by the simple medium of pushing the door slightly further open.
  • a door check of the type including a cylinder having a head at each end thereof, a piston reciprocable in said cylinder having a piston rod extending through one cylinder head, spring means in said cylinder constantly urging said piston'toward the other cylinder head, the said cylinder and piston rod being connectable to the door frame and door in a manner to cause said piston to move in one direction and compress said spring responsive to manually opening the said door, said spring causing said piston to move in the opposite direction after said door has been opened to close the same, said cylinder having a bleed in the other of said heads adapted to regulate the rate of spring closing of said door, a manually set and readily releasable door hold-open means comprising a hold-open lever latch disposed diametrically across and in spaced relationship to the end of said one cylinder head having an aperture therethrough slightly larger than said piston rod and telescoped freely thereover, pivot means mounting one end of said lever-latch on said one cylinder head adjacent one side said piston rod and extending outwardly from the other side thereof
  • a door check of the type including a cylinder having a head at each end thereof, a piston reciproca-ble in said cylinder having a piston rod extending through one cylinder head, spring means in said cylinder head constantly urging said piston toward the other cylinder head, the said cylinder and piston rod being connectable to the door frame and door in a manner to cause said piston to move in one direction and compress said spring responsive to manually opening the said door, said spring causing said piston to move in the opposite direction after said door has been open to close the same, said cylinder having a bleed in the other of said heads adapted to regulate the rate of spring closing of said door, a manually set and readily releasable door hold-open means comprising a hold-open lever-latch pivotally mounted on the outer end of said one cylinder head off-center with respect to the piston rod extending therethrough and extending diametrically across said cylinder head in spaced relationship thereto, said lever-latch having an aperture therethrough slightly larger than said piston rod freely accommodating the same when said lever-l
  • a door check of the type including a cylinder having a head at each end thereof, a piston reciprocable in said cylinder having a piston rod extending through one cylinder head, spring means in said cylinder head constantly urging said piston toward the other cylinder head, the said cylinder and piston rod being connectable to the door frame and door in a manner to cause said piston to move in one direction and compress said spring responsive to manually opening the said door, said spring causing said piston to move in the opposite direction after said door has been opened to close the same, said cylinder having a bleed in the other of said heads adapted to regulate the rate of spring closing of said door, a manually set and readily releasable door hold-open means 0 comprising a hold-open lever-latch disposed diametrically across the end of said one cylinder cap having an aperture therethrough slightly larger than said piston rod telesooped freely thereover and pivot means mounting one end of said lever-latch on said one cylinder head adjacent one side said piston rod and extending outwardly from the other side thereof

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Description

Oct. 1, 1963 .J. A. TRUHON 3,105,264-
pboa CLOSING DOOR CHECKS Filed June 20, 1961 v II INVENTOR.
JIM/v4. 7kw/o/v Arr-024467 United States Patent Oifice" Edd-52% Patented Get. 1, 1963 3,105,264 DOGR (lifiglNG DGGR CHECKS .l'ohn A. Trnhon, 16514 Blackstone, Detroit 19, Mich. Filed .iune 20, 1961, Ser. No. 118,339 3 Ctainis. (Cl. 16-66) This invention relates to door closing door checks for doors, and in particular to improvements in door closing door checks for side hinged screen doors, storm doors, and the like.
In the prior art, several screen door and storm door closing door checks embody means for holding side pivoted doors open against the closing action of the door check, which closing action of the door check is stored therein in a compression spring which is compressed responsive to manually opening the door. Such door closing door checks usually consist of a cylinder connected at one end to either the door frame or the door and a spring loaded piston having a piston rod extending from the other end of the said cylinder pivotally connected to the other of the door frame or the door. Air enters the cylinder freely as the door is opened, and escapes through a suitable orifice as the door is spring closed, thus checking the rate of speed at which the door is spring closed with an air cushion action.
The prior art hold-open means generally employed in spring loaded door closing door checks of the class hereinabove described have proved to be unsatisfactory because of the difficulties involved in making them operative to hold the door open and the inconvenience of releasing the hold-open means to release the door closing door checks for normal operation.
With the foregoing in view, it is the primary object of the instant invention to provide, in a spring loaded cylinder type air cushioned door closing door check for side-hinged doors, a readily manually set means for bolding the door in any partial or fully open position, which hold-open means is easily readily and quickly released by the simple expedient of further swinging the door slightly toward its fully open position and then releasing the door for normal closing by the said door check.
A further object of the invention is to accomplish the foregoing in a simple, inexpensive and facile manner which includes incorporating a novel and effective manually set and readily releasable hold-open lever device on the piston rod end of an otherwise conventional air cushion type door closing door check for storm doors, screen doors, and the like.
Other objects of the invention will become apparent by reference to the following detailed description taken in connection with the accompanying drawing, in which:
FIG. 1 is a top plan view of a door closing door check embodying the quick manually set and readily releasable hold-open device of the invention, the said door check and hold-open device being shown in their holdcpen position as when a door equipped therewith has been swung partially or substantially fully open and the hold open device has been manually set.
FIG. 2 is a top plan view similar to FIG. 1, but with the hold-open device released and the door closing door check shown in the door-closed position.
FIG. 3 is an enlarged end elevational view taken on the line 3-3 of FIG. 2 showing the quick manually set and readily releasable hold-open device of the invention in its normal released position.
FIG. 4 is an enlarged side elevational view taken on the line 44 of FIG. 2 also showing the quick manually set and readily released hold-open device of the invention in its released position.
FIG. 5 is an inside elevational view of a storm door or screen door side hinged to a door frame and equipped with a door closing door check embodying the invention,
the said door being shown in its closed position.
FIG. 6 is a top plan view of the storm door or screendoor, door frame and door check shown in FIG. 5 with the door swung substantially fully open, the door check of the invention having been manually set to releasably hold the said screen door in its open position.
Referring now to the drawings wherein like reference numerals refer to like and corresponding parts throughout the several views, a door closing door check 16 em bodying manually set quick release means 30' illustrating the invention is shown in its door-open position in FIGS. 1 and 6, and in its released or door-ciosed position in FIGS. 2, 3, 4 and 5.
A typical installation of a door closing door check 11 of the invention is best shown in FIGS. 5 and 6 on a storm or screen door 11 side hinged at 12 to a door frame 13 setting on a sill 14 and in a wall 15. Suitable bifurcated brackets 16 and 17 each with vertical hinge pins are employed to pivotally connect the cylinder 21) and the piston rod 22 of the piston 21 of the door closing door check 10 to the door 11 and the door frame 13 respectively. FIG. 5 shows the door 11 in its closed position and FIG. 6 shows the door 11 in its open position where it is releasably held by the manually set quick release means 30.
The door closing door check It} is preferably constructed of a cylinder 29 and has a piston 21 reciprocatingly mounted therein. The said piston 21 has a piston rod 22 fixed at one end thereto with its free end reciprocating mounted through a cylinder head 23 on one end of the said cylinder 20. The manually engageable quick release means 30 of the invention is preferably incorporated on the outer end of the said cylinder head 23. The free end of the said piston rod 22 is preferably flat-t tened and bored at 22-4 to accommodate the hinge pin of the bifurocated bracket 16. The opposite end of the cylinder 20 is capped with a cylinder head 24 preferably incorporating an ear bored at 24% to accomnodate the hinge pin of the bifurcated bracket 17.
The piston 21 may be of any suitable construction, it being indicated in FIGS. 1 and 2 to be of a well-known flexible neoprene or rubber cup sealed type. Between the piston 21 and the cylinder head 23 and freely disposed around the piston rod 22 is a compression spring 25 shown compressed in FIG. 1 as when the door 11 is substantially fully opened, and extended in FIG. 2 as when the said door 11 is fully closed.
The cylinder head 24 is provided with a spring loaded ball check valve 26 adjustable by an adjusting screw 27 having a longitudinal air passage 27% therethrough. Obviously, any type of ball check valve 26 may be employed which will regulate the amount of air passing out of the cylinder 29 when the piston 21 is urged to the right hand end of the cylinder 20 as viewed in FIG. 2 during the spring closing of the door 11, thus regulating the rate of door closing and checking its motion as it approaches its fully closed position. When the door 11 is manually opened and the compression spring 25 is being compressed, the flexible cup type packing 210 of the piston 21 permits air in the spring chamber 20% of the cylinder 29 to move freely to the air chamber 2M thereof.
As best shown in FIGS. 1-4 inclusive, the manually set quick release hold-open means as comprises a holdopen lever latch 31 pivoted to the outer end of the cylinder head 23 on a pivot pin 32 extending through a pair of laterally spaced nubs 239 preferably formed integral with and extending outwardly from the outer. end 231 of the said cylinder head 23. The said pivot pin 32 is located off-center in respect to the piston rod 22 which reciprocates through a central aperture 232 pro vided in the said cylinder head 23. The said hold-open a lever latch 31 is preferably formed with a pair of laterally spaced ears 31d bent normal thereto which are suitably apertured for pivotally mounting the said lever latch 31 on pivot pin 32, the said ears 310 being preferably disposed adjacent to and inwardly of the said spaced nubs 23% extending outwardly from the said cylinder head 23.
The short or stop end of the lever latch 31 is preferably bent to form a stop 311 which is of the correct length to hold the said lever latch 31 parallel to the outer end 231 of the cylinder head 23 when the said lever latch is rotated about the pivot pin 32 clockwise as viewed in FIG. 2. The long or operating end of the lever latch 31 is provided with an aperture 312 therethrough slightly larger in diameter than the diameter of the piston rod 22 so that the said piston rod 22 is free to reciprocate through the lever latch 31 when it is disposed in an unlatched position parallel to the outer end 231 of the cylinder head 23, see FIG. 2. The said long or operating end of the lever latch 31 extends a sufficient distance outwardly of the piston rod 22 to provide an operating tab A spring loaded plunger 35 is reciprocatingly mounted in a suitable bore 235 in the cylinder head 23 below the lever latch 31 inwardly of the operating tab 313 thereof, which spring loaded plunger constantly urges the lever latch 31 to pivot clockwise as viewed in FIG. 1 to its unlatched position shown in FIG. 2. Thus, the lever latch 31 is normally disposed in its unlatched position shown in FIG. 2. At this point, it will be noted that, when the lever latch 31 is spring pivoted to its unlatched position shown in FIG. 2, the piston rod 22 is free to reciprocate through the aperture 312 provided therefor in the said lever latch 31. It is important that the wall of the lever latch 31 defining the said aperture 312 therethrough be drilled normal to the surface thereof with relatively sharp upper and lower circumferential edges so that when the said lever latch 31 is manually pressed and pivoted to its locked position shown in FIG. 1 after the door 11 has been manually partially or substantially opened, the said lever latch 31 will become engaged with the piston rod 22 upon release of the door for closing by the door closing door check 16 locking the said door check 1d against movement tending to close the door 11.
A spring loaded plunger 35 is reciprocatingly mounted in a suitable bore 233 in the cylinder head 23 below the lever latch 31 inwardly of the operating tab 313 thereof, which spring loaded plunger constantly urges the lever latch 31 to pivot clockwise as viewed in FIG. 1 to its unlatched position shown in FIG. 2. Thus, the lever latch 31 is normally disposed in its unlatched position shown in FIG. 2. At this point, it will be noted that, when the lever latch 31 is spring pivoted to its unlatched position shown in FIG. 2, the piston rod 22 is free to reciprocate through the aperture 312 provided therefor in the said lever latch 31. It is important that the wall of the lever latch 31 defining the said aperture 312 therethrough be drilled normal to the surface thereof with relatively sharp upper and lower circumferential edges so that when the said lever latch 31 is manually pressed and pivoted to its locked position shown in FIG. 1 after the door 11 has been manually partially or substantially opened, the said lever latch 31 will become engaged with the piston rod 22 upon release of the door for closing by the door closing door check lit locking the said door check 14} against movement tending to close the door 11.
Accordingly, the door 11 may be releasably held in a partially open or substantially fully open position by the manually set quick release hcld-open means 30 by the simple expedient of pressing the operating tab 313 of the hold-open lever latch 31 and releasing the door for closing by the door closing door check it? while maintaining pressure on the said pressure tab 313. The hold-open means so immediately makes the door closing door check inoperative until the hold-open lever latch 31 is red leased by manually pushing the door d1 ever-so-slightly toward its fully open position.
The improved manually set quick release hold-open means 3%? for door checks it} is very simple, extremely convenient, and may be applied to various types of door closing door checks it) at a minimum of cost, thereby providing a desirable and trouble-free means for readily holding a swinging door in any partial or substantially fully open position, and subsequently releasing it for closing by the simple medium of pushing the door slightly further open.
Although but a single embodiment of the invention has been disclosed and described herein, it is obvious that many changes may be made in the size, shape, arrangement and detail of the several elements thereof, all without departing from the spirit and scope of the invention as defined by the appended claims.
I claim:
1. In a door check of the type including a cylinder having a head at each end thereof, a piston reciprocable in said cylinder having a piston rod extending through one cylinder head, spring means in said cylinder constantly urging said piston'toward the other cylinder head, the said cylinder and piston rod being connectable to the door frame and door in a manner to cause said piston to move in one direction and compress said spring responsive to manually opening the said door, said spring causing said piston to move in the opposite direction after said door has been opened to close the same, said cylinder having a bleed in the other of said heads adapted to regulate the rate of spring closing of said door, a manually set and readily releasable door hold-open means comprising a hold-open lever latch disposed diametrically across and in spaced relationship to the end of said one cylinder head having an aperture therethrough slightly larger than said piston rod and telescoped freely thereover, pivot means mounting one end of said lever-latch on said one cylinder head adjacent one side said piston rod and extending outwardly from the other side thereof, stop means on said lever-latch located to contact said cylinder head causing said lever-latch to be disposed normal to said piston rod when pivoted in one direction about said pivot means, spring means constantly urging said lever-latch to pivot to its said normal position wherein said piston rod may reciprocate freely therethrough, said lever-latch pivoting into contact wth said piston rod responsive to manual pressure applied to the outwardly extending end thereof after said door is manually opened holding said piston rod against axial movement to close said door upon release of the manual force employed to open said door, said lever-latch being released by said last mentioned spring means to its normal position upon subsequently manually opening said door slightly from the open position to which it is held by said hold-open leverlatch.
2. In a door check of the type including a cylinder having a head at each end thereof, a piston reciproca-ble in said cylinder having a piston rod extending through one cylinder head, spring means in said cylinder head constantly urging said piston toward the other cylinder head, the said cylinder and piston rod being connectable to the door frame and door in a manner to cause said piston to move in one direction and compress said spring responsive to manually opening the said door, said spring causing said piston to move in the opposite direction after said door has been open to close the same, said cylinder having a bleed in the other of said heads adapted to regulate the rate of spring closing of said door, a manually set and readily releasable door hold-open means comprising a hold-open lever-latch pivotally mounted on the outer end of said one cylinder head off-center with respect to the piston rod extending therethrough and extending diametrically across said cylinder head in spaced relationship thereto, said lever-latch having an aperture therethrough slightly larger than said piston rod freely accommodating the same when said lever-latch is pivoted to its unlocked position parallel to the end of said one cylinder head, lever-latch stop means limiting the pivoting of said hold-open lever-latch to said unlocked position, spring means constantly urging said lever-latch toward its unlocked position, said lever-latch being manually pivotable to its hold-open position when said door is manually swung open contacting said piston rod adjacent said aperture therethrough whereupon the said leverlatch becomes engaged with said piston rod upon release of said door from said manually swung open position preventing door closing movement of said door check, said lever-latch then being releasable for movement by said lever-latch spring means to its unlocked position by subsequently manually swinging said door slightly toward its open position.
3. In a door check of the type including a cylinder having a head at each end thereof, a piston reciprocable in said cylinder having a piston rod extending through one cylinder head, spring means in said cylinder head constantly urging said piston toward the other cylinder head, the said cylinder and piston rod being connectable to the door frame and door in a manner to cause said piston to move in one direction and compress said spring responsive to manually opening the said door, said spring causing said piston to move in the opposite direction after said door has been opened to close the same, said cylinder having a bleed in the other of said heads adapted to regulate the rate of spring closing of said door, a manually set and readily releasable door hold-open means 0 comprising a hold-open lever-latch disposed diametrically across the end of said one cylinder cap having an aperture therethrough slightly larger than said piston rod telesooped freely thereover and pivot means mounting one end of said lever-latch on said one cylinder head adjacent one side said piston rod and extending outwardly from the other side thereof, stop means limiting the pivoting of said lever-latch to a position normal to said piston rod when pivoted in one direction about said pivot means, compression spring means disposed between said one cylinder cap and said lever-latch constantly urging said lever-latch to pivot to its said normal position wherein said piston rod may reciprocate freely therethrough, said lever-latch being manually pivotable into engagement with said piston rod responsive to manual pressure applied to the outwardly extending end thereof after said door is manually opened holding said piston rod against axial movement to close said door upon release of the manual opening of said door, said leverlatch being released for spring urging by said latch spring means to its position normal to said piston rod upon subsequently manually opening said door slightly further from the open position to which it is held by said holdopen lever-latch.
References Cited in the file of this patent UNITED STATES PATENTS

Claims (1)

1. IN A DOOR CHECK OF THE TYPE INCLUDING A CYLINDER HAVING A HEAD AT EACH END THEREOF, A PISTON RECIPROCABLE IN SAID CYLINDER HAVING A PISTON ROD EXTENDING THROUGH THE CYLINDER HEAD, SPRING MEANS IN SAID CYLINDER CONSTANTLY URGING SAID PISTON TOWARD THE OTHER CYLINDER HEAD, THE SAID CYLINDER AND PISTON ROD BEING CONNECTABLE TO THE DOOR FRAME AND DOOR IN A MANNER TO CAUSE SAID PISTON TO MOVE IN ONE DIRECTION AND COMPRESS SAID SPRING CAUSING SAID MANUALLY OPENING THE SAID DOOR, SAID SPRING CAUSING SAID PISTON TO MOVE IN THE OPPOSITE DIRECTION AFTER SAID DOOR HAS BEEN OPENED TO CLOSE THE SAME, SAID CYLINDER HAVING A BLEED IN THE OTHER OF SAID HEADS ADAPTED TO REGULATE THE RATE OF SPRING CLOSING OF SAID DOOR, A MANUALLY SET AND READILY RELEASABLE DOOR HOLD-OPEN MEANS COMPRISING HOLD-OPEN LEVER LATCH DISPOSED DIAMETRICALLY ACROSS AND IN SPACED RELATIONSHIP TO THE END OF SAID CYLINDER HEAD HAVING AN APERTURE THERETHROUGH SLIGHTLY LARGER THAN SAID PISTON ROD AND TELESCOPED FREELY THEREOVER, PIVOT MEANS MOUNTING ONE END OF SAID LEVER-LATCH ON SAID ONE CYLINDER HEAD ADJACENT ONE SIDE SAID PISTON ROD AND EXTENDING OUTWARDLY FROM THE OTHER SIDE THEREOF, STOP MEANS ON SAID LEVER-LATCH LOCATED TO CONTACT SAID CYLINDER HEAD CAUSING SAID LEVER-LATCH TO BE DISPOSED NORMAL TO SAID PISTON ROD WHEN PIVOTED IN ONE DIRECTION ABOUT SAID PIVOT MEANS, SPRING MEANS CONSTANTLY URGING SAID LEVER-LATCH TO PIVOT TO IS SAID NORMAL POSITION WHEREIN SAID PISTON ROD MAY RECIPROCATE FREELY THERETHROUGH, SAID LEVER-LATCH PIVOTING INTO CONTACT WITH SAID PISTON ROD RESPONSIVE END MANUAL PRESSURE APPLIED TO THE OUTWARDLY EXTENDING END THEREOF AFTER SAID DOOR IS MANUALLY OPENED HOLDING SAID PISTON ROD AGAINST AXIAL MOVEMENT TO CLOSE SAID DOOR UPON RELEASE OF THE MANUAL FORCE EMPLOYED TO OPEN SAID DOOR, SAID LEVER-LATCH BEING RELEASED BY SAID LAST MENTIONED SPRING MEANS TO ITS NORMAL POSITION UPON SUBSEQUENTLY MANUALLY OPENING SAID DOOR SLIGHTLY FROM THE OPEN POSITION TO WHICH IT IS HELD BY SAID HOLD-OPEN LEVERLATCH.
US118339A 1961-06-20 1961-06-20 Door closing door checks Expired - Lifetime US3105264A (en)

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Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3162889A (en) * 1963-04-05 1964-12-29 Dexter Ind Inc Door closer clip
US3392419A (en) * 1966-11-16 1968-07-16 Grant Pulley & Hardware Corp Door closer and holder
US3675270A (en) * 1968-08-17 1972-07-11 Doerken & Mankel Kg Closing device for doors and analogous structural elements
US4194264A (en) * 1978-07-26 1980-03-25 Gunter Stoffregen Door check device
US4722116A (en) * 1986-11-25 1988-02-02 Erickson Alvin L Remote setting-control mechanism for a door-closer latch
US4815163A (en) * 1988-06-30 1989-03-28 Simmons William O Storm door lock apparatus
US4920609A (en) * 1989-07-24 1990-05-01 Solid Well International Corp. Pneumatic door closer
US4974285A (en) * 1988-05-11 1990-12-04 A. Raymond Device for assisting in the opening and closing of pivotably mounted members
US5048150A (en) * 1990-01-29 1991-09-17 Professional Engineering Company Incorporated Door holder
US5400879A (en) * 1993-12-13 1995-03-28 Alliedsignal Inc. Drum brake wheel cylinder with internal automatic adjustment
US5529148A (en) * 1993-08-24 1996-06-25 O'leary; Thomas M. Automatic brake and hold mechanism for sliding rods
US5592780A (en) * 1995-06-07 1997-01-14 Checkovich; Peter Door position controlling apparatus
US5630248A (en) * 1995-10-25 1997-05-20 Luca; Valentin Door closer with semi-automatic latching
US5659925A (en) * 1996-02-21 1997-08-26 Patterson; E. Ennalls Door closer holding mechanism
WO1998020223A1 (en) * 1995-10-27 1998-05-14 Karlquist Per Erik Piston device
US5832562A (en) * 1995-10-25 1998-11-10 Luca; Valentin Door closer
US6615449B1 (en) * 2002-02-06 2003-09-09 Arthur Alvarez Releasable locking assembly for a door control cylinder
US6634058B1 (en) * 2002-07-09 2003-10-21 Percy Lin Door closer with a reliable arresting effect
US7134168B1 (en) * 2004-08-18 2006-11-14 Betteli, Inc. Hong Kong Door closer with pre-set stops
US20060272124A1 (en) * 2005-06-03 2006-12-07 George Wartian Control assembly for a door closer
US20070234509A1 (en) * 2006-04-06 2007-10-11 Etlicher Peter D Door closing actuator
US20090249763A1 (en) * 2008-04-04 2009-10-08 Diederich Jr Anthony F Curtain to direct crop in a header
US8307495B1 (en) 2010-02-18 2012-11-13 Hardware Specialties, Inc. Door cylinder
US9206635B1 (en) * 2014-07-16 2015-12-08 Percy Cheng-Ching Lin Door closing device
US20160002966A1 (en) * 2013-04-01 2016-01-07 Yubo Zhong Horizontal door closer structure

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2051969A (en) * 1935-01-16 1936-08-25 Louis W Shastock Automatic tube adjuster for telescoping tubes
US2930070A (en) * 1956-12-07 1960-03-29 Uebelhoer Brothers Inc Door closer
US2940111A (en) * 1957-04-19 1960-06-14 Independent Lock Co Damping device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2051969A (en) * 1935-01-16 1936-08-25 Louis W Shastock Automatic tube adjuster for telescoping tubes
US2930070A (en) * 1956-12-07 1960-03-29 Uebelhoer Brothers Inc Door closer
US2940111A (en) * 1957-04-19 1960-06-14 Independent Lock Co Damping device

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3162889A (en) * 1963-04-05 1964-12-29 Dexter Ind Inc Door closer clip
US3392419A (en) * 1966-11-16 1968-07-16 Grant Pulley & Hardware Corp Door closer and holder
US3675270A (en) * 1968-08-17 1972-07-11 Doerken & Mankel Kg Closing device for doors and analogous structural elements
US4194264A (en) * 1978-07-26 1980-03-25 Gunter Stoffregen Door check device
US4722116A (en) * 1986-11-25 1988-02-02 Erickson Alvin L Remote setting-control mechanism for a door-closer latch
US4974285A (en) * 1988-05-11 1990-12-04 A. Raymond Device for assisting in the opening and closing of pivotably mounted members
US4815163A (en) * 1988-06-30 1989-03-28 Simmons William O Storm door lock apparatus
US4920609A (en) * 1989-07-24 1990-05-01 Solid Well International Corp. Pneumatic door closer
US5048150A (en) * 1990-01-29 1991-09-17 Professional Engineering Company Incorporated Door holder
US5529148A (en) * 1993-08-24 1996-06-25 O'leary; Thomas M. Automatic brake and hold mechanism for sliding rods
US5400879A (en) * 1993-12-13 1995-03-28 Alliedsignal Inc. Drum brake wheel cylinder with internal automatic adjustment
US5592780A (en) * 1995-06-07 1997-01-14 Checkovich; Peter Door position controlling apparatus
US5630248A (en) * 1995-10-25 1997-05-20 Luca; Valentin Door closer with semi-automatic latching
US5832562A (en) * 1995-10-25 1998-11-10 Luca; Valentin Door closer
WO1998020223A1 (en) * 1995-10-27 1998-05-14 Karlquist Per Erik Piston device
US5659925A (en) * 1996-02-21 1997-08-26 Patterson; E. Ennalls Door closer holding mechanism
US6615449B1 (en) * 2002-02-06 2003-09-09 Arthur Alvarez Releasable locking assembly for a door control cylinder
US6634058B1 (en) * 2002-07-09 2003-10-21 Percy Lin Door closer with a reliable arresting effect
US7134168B1 (en) * 2004-08-18 2006-11-14 Betteli, Inc. Hong Kong Door closer with pre-set stops
US20060272124A1 (en) * 2005-06-03 2006-12-07 George Wartian Control assembly for a door closer
US20070234509A1 (en) * 2006-04-06 2007-10-11 Etlicher Peter D Door closing actuator
US20090249763A1 (en) * 2008-04-04 2009-10-08 Diederich Jr Anthony F Curtain to direct crop in a header
US7644566B2 (en) * 2008-04-04 2010-01-12 Cnh America Llc Curtain to direct crop in a header
US8307495B1 (en) 2010-02-18 2012-11-13 Hardware Specialties, Inc. Door cylinder
US20160002966A1 (en) * 2013-04-01 2016-01-07 Yubo Zhong Horizontal door closer structure
US9422758B2 (en) * 2013-04-01 2016-08-23 Yubo Zhong Horizontal door closer structure
US9206635B1 (en) * 2014-07-16 2015-12-08 Percy Cheng-Ching Lin Door closing device

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