US3788007A - Freight car door latching device - Google Patents

Freight car door latching device Download PDF

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Publication number
US3788007A
US3788007A US00247644A US3788007DA US3788007A US 3788007 A US3788007 A US 3788007A US 00247644 A US00247644 A US 00247644A US 3788007D A US3788007D A US 3788007DA US 3788007 A US3788007 A US 3788007A
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United States
Prior art keywords
door
car
unlocking lever
latch
mounted lock
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US00247644A
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J Bailey
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Pullman Standard Inc
Pullman Inc
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Pullman Inc
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Assigned to PULLMAN STANDARD INC., A DE CORP. reassignment PULLMAN STANDARD INC., A DE CORP. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: M.W. KELLOGG COMPANY, THE
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
    • B61D19/00—Door arrangements specially adapted for rail vehicles
    • B61D19/001—Door arrangements specially adapted for rail vehicles for wagons or vans
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D13/00—Accessories for sliding or lifting wings, e.g. pulleys, safety catches
    • E05D13/04—Fasteners specially adapted for holding sliding wings open
    • 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
    • E05Y2900/50—Application of doors, windows, wings or fittings thereof for vehicles
    • E05Y2900/51—Application of doors, windows, wings or fittings thereof for vehicles for railway cars or mass transit vehicles
    • 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
    • E05Y2900/50—Application of doors, windows, wings or fittings thereof for vehicles
    • E05Y2900/516—Application of doors, windows, wings or fittings thereof for vehicles for trucks or trailers
    • 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
    • Y10S292/46—Sliding door 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
    • Y10T292/175—Bolt releasers
    • Y10T292/18—Free-end-engaging means

Definitions

  • ABSTRACT A pivoted latch is positioned at the end of a sliding door supporting guide rail and engageable with a door mounted cooperating hook part to lock a sliding door of a freight car in the fully open position.
  • a door mounted unlocking lever is positioned adjacent a door pusher block to thereby unlock the door from the open position when the pusher block is engaged by fork of a lift truck which may be used to push the door closed.
  • This invention relates to sliding side doors of a railway freight car and in particular to a locking device used to retain the door in the open position.
  • the subject matter of the present invention involves an automatic unlocking lever which is positioned at the lower corner of a sliding freight car door to automatically unlock the door from the open position when the door is pushed closed by a fork lift or other suitable closing means.
  • the pivoted automatic unlocking lever is operated to unlatch the door from the locked open position.
  • the present invention has eliminated the requirement of a lift truck operator dismounting the lift truck to manually unlock the car door by providing a lock which is automatically disengaged as a fork from the lift truck engages the door to push the door closed.
  • FIG. 1 is a partial side elevational view of a railway freight car
  • FIG. 2 is an enlarged view of the lower right hand portion of the car door in the open position
  • FIG. 3 is a view of the door lock and tripping device
  • FIG. 4 is an enlarged view of the door lock and tripping device as the fork of a lift truck begins to push the door to the closed position.
  • FIG. I there is illustrated a portion of a railway freight car showing the side wall structure which terminates at its bottom portion at the side sill II.
  • a sliding door 12 moving on rollers 12a is of the standard sliding configuration but may be of the plug door type which is well known in the industry.
  • a door supporting and guide rail 13 extends along the side sill II to support and guide the door.
  • a second door guide rail is spaced above the door 12 designated by tne numeral 14.
  • the sliding door 12 includes a door locking and latch arrangement 16 which is used to secure the door in the closed position and also includes an operating lever 18 which may be used to provide the initial door opening force and also the final door closing force.
  • Grab handles 20 are positioned on the outer surface of the door 12 to facilitate manual door opening and closing.
  • a pusher block 22 is positioned at the lower right hand portion of the door as illustrated in FIG. 1 and shown in the remainder of the drawings in greatly enlarged detail.
  • the pusher block 22 is utilized for mechanical opening and closing of the door during which time a fork lift truck is used to slide the door open and closed.
  • the pusher block 22 includes a transversely and horizontally extending upper wall 24 and a similarly disposed lower wall 26 joined by a vertically and transversely extending partition member 28.
  • a rear wall 29 joins the transversely extending wall portions and is riveted to the door.
  • the lower wall 26 includes a slot 30 through which the unlocking lever 32 extends.
  • FIGS. 1 and 4 show the positioning of the tine 33 of a lift truck engaging the pusher block 22 of the present invention during door opening and door closing.
  • the pivoted unlocking lever is designated generally by the numeral 32 and includes more specifically a lever arm portion 34 and an upstanding flange portion 36 which extends through the slot 30 of the pusher block 22.
  • the unlocking or tripping lever 32 is securely and pivotally attached to the door 12 by the pivot bracket 38.
  • a hook member 40 Positioned on the lower right hand portion of the door 12 as illustrated in FIG. I is a hook member 40 which is rigidly attached to the door stop block 41 and adajcent the free end portion of the lever arm 34 as shown in FIG. 2.
  • This locking hook member 40 is in line with the latch 42 whichis positioned at the end of the guide rail 13 and is pivotally attached to the door retainer and latch support bracket 44.
  • the latch unit 42 includes a .nose portion 46 which is positioned to cooperate with the locking hook 40 of the door 12 and engage the same to hold the door in the fully open position.
  • the latch assembly 42 also includes a latch extension 48 which extends beyond the nose 46 of the latch 42 and is positioned vertically adjacent the lever arm 34 of the unlocking lever 32 when the door is fully open and locked in the open position.
  • a flat spring 50 is mounted on the support bracket 44 and engages a finger 51 of the latch 42 to provide a biasing force to urge the nose 46 of the latch downward at all times.
  • a freight car door which is generally a very heavy and cumbersome unit may be conveniently and efficiently closed by the use of a powered fork lift truck without requiring the truck operator to dismount the truck and unlock the door prior to the closing of the freight car door 12.
  • the automatic unlocking feature of the present invention also insures that the door is not urged closed when still restrained by a locking device by providing a lock tripping mechanism which releases the lock automatically as the car door is pushed closed.
  • a door locking and restraining device for retaining the door in the open position and including:
  • a door mounted lock element and a car mounted lock element positioned for cooperative engagement to securely lock said door in the open position
  • a door retainer attached to said car and operatively associated with the stop block member to limit longitudinal movement of the door
  • an unlocking lever pivotally attached to said freight car door and having an upstanding portion adjacent said door pusher block, and having a lever arm portion adjacent the car mounted lock element when said door is in the locked open position to thereby permit disengagement of said door mounted lock element and the car mounted lock element as the door is pushed closed.
  • said door pusher block including a partition extending vertically and transversely;
  • said door mounted lock element being a lock hook member extending upwardly from and secured to said door stop block;
  • said car mounted lock element being a pivoted latch member having a nose portion engageable with said lock hook to thereby retain the door.
  • said car mounted lock element including a latch extension engageable by said lever arm portion of the unlocking lever to disengage the door mounted lock element and the car mounted lock element.
  • said pivoted latch member having a finger portion spaced from said latch extension
  • a biasing means operatively engaging the finger portion of said latch member to thereby urge the latch nose portion into engagement with the door mounted lock hook.
  • a door latching and automatic unlocking device for use on the door of a railway freight car and comprising:
  • an unlocking lever member attached to said door and having a flange portion operatively positioned adjacent said pusher block and spaced therefrom, and having an arm portion;
  • a door mounted lock hook element positioned adjacent the unlocking lever arm portion
  • said latch means having an extension engageable by the arm portion of the unlocking lever member for removal of the latch means from locking engagement with said lock hook element;
  • said car door having a stop block portion
  • said car mounted latch means being positioned on a door retainer bracket which cooperates with the said stop block portion on said door to limit sliding movement of said car door;
  • said pusher block having a transversely and vertically extending partition wall
  • said latch means extension spaced from the partition wall to permit limited rotation of the unlocking lever member for unlocking pivoted latch means from the door mounted lock hook element.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lock And Its Accessories (AREA)

Abstract

A pivoted latch is positioned at the end of a sliding door supporting guide rail and engageable with a door mounted cooperating hook part to lock a sliding door of a freight car in the fully open position. A door mounted unlocking lever is positioned adjacent a door pusher block to thereby unlock the door from the open position when the pusher block is engaged by fork of a lift truck which may be used to push the door closed.

Description

United States Patent [191 Bailey FREIGHT CAR DOOR LATCHING DEVICE [75] Inventor: John D. Bailey, Orland Park, Ill.
[73] Assignee: Pullman Incorporated, Chicago, Ill.
[22] Filed: Apr. 26, 1972 [21] Appl. No.: 247,644
[52] US. Cl 49/449, 292/D1G. 46, 292/254 [51] Int. Cl E05d 13/04 [58] Field of Search 49/449, 275-279, 49/426; 292/5 DF, 254
[56 References Cited UNITED STATES PATENTS Pelcin 292/DIG. 46
[ Jan. 29, 1974 1,181,948 5/1916 Constable 49/449 X Primary Examiner-Kenneth Downey Attorney, Agent, or Firm-Hilmond O. Vogel et a1.
[ 5 7] ABSTRACT A pivoted latch is positioned at the end of a sliding door supporting guide rail and engageable with a door mounted cooperating hook part to lock a sliding door of a freight car in the fully open position. A door mounted unlocking lever is positioned adjacent a door pusher block to thereby unlock the door from the open position when the pusher block is engaged by fork of a lift truck which may be used to push the door closed.
8 Claims, 4 Drawing Figures PATENTED JAN 2 9 1976 saw 1 0F 2 mammm 2 w 3788.00?
' SHEET 2 0F 2 1 FREIGHT CAR DOOR LATCI'IING DEVICE BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to sliding side doors of a railway freight car and in particular to a locking device used to retain the door in the open position.
2. Description of the Prior Art Prior art door mechanisms which retain the door in the open position generally require a manual operation to disengage the lock prior to pushing the door closed. This separate operation when used at a dock side where fork lift trucks are used to push the door closed requires excessive manual operations since the fork lift operator must dismount the lift truck to unlock door and then return to the truck to push the door closed.
SUMMARY The subject matter of the present invention involves an automatic unlocking lever which is positioned at the lower corner of a sliding freight car door to automatically unlock the door from the open position when the door is pushed closed by a fork lift or other suitable closing means.
Immediately prior to the engagement of the pusher block by the tine of a lift truck, the pivoted automatic unlocking lever is operated to unlatch the door from the locked open position. The present invention has eliminated the requirement of a lift truck operator dismounting the lift truck to manually unlock the car door by providing a lock which is automatically disengaged as a fork from the lift truck engages the door to push the door closed.
It is therefore an object of the present invention to provide a locking device for a railway freight car door which permits the door to be automatically locked in a fully open position and automatically unlocked just prior to the door being engaged and pushed closed by the fork of a lift truck.
It is another object of the present invention to provide a lock tripping device which releases the car door from the locked open position as the door is pushed toward the closed position to thereby prevent damage to the door should the door be urged closed when the lock was not released.
These and other objects of the invention will become apparent from reference to the following description, appended claims and attached drawings.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a partial side elevational view of a railway freight car;
FIG. 2 is an enlarged view of the lower right hand portion of the car door in the open position;
FIG. 3 is a view of the door lock and tripping device; and
FIG. 4 is an enlarged view of the door lock and tripping device as the fork of a lift truck begins to push the door to the closed position.
DETAILED DESCRIPTION Referring now to the drawings and in particular to FIG. I, there is illustrated a portion of a railway freight car showing the side wall structure which terminates at its bottom portion at the side sill II. A sliding door 12 moving on rollers 12a is of the standard sliding configuration but may be of the plug door type which is well known in the industry. A door supporting and guide rail 13 extends along the side sill II to support and guide the door. A second door guide rail is spaced above the door 12 designated by tne numeral 14.
The sliding door 12 includes a door locking and latch arrangement 16 which is used to secure the door in the closed position and also includes an operating lever 18 which may be used to provide the initial door opening force and also the final door closing force. Grab handles 20 are positioned on the outer surface of the door 12 to facilitate manual door opening and closing.
A pusher block 22 is positioned at the lower right hand portion of the door as illustrated in FIG. 1 and shown in the remainder of the drawings in greatly enlarged detail. The pusher block 22 is utilized for mechanical opening and closing of the door during which time a fork lift truck is used to slide the door open and closed. The pusher block 22 includes a transversely and horizontally extending upper wall 24 and a similarly disposed lower wall 26 joined by a vertically and transversely extending partition member 28. A rear wall 29 joins the transversely extending wall portions and is riveted to the door. The lower wall 26 includes a slot 30 through which the unlocking lever 32 extends. FIGS. 2
and 4 show the positioning of the tine 33 of a lift truck engaging the pusher block 22 of the present invention during door opening and door closing.
The pivoted unlocking lever is designated generally by the numeral 32 and includes more specifically a lever arm portion 34 and an upstanding flange portion 36 which extends through the slot 30 of the pusher block 22. The unlocking or tripping lever 32 is securely and pivotally attached to the door 12 by the pivot bracket 38.
Positioned on the lower right hand portion of the door 12 as illustrated in FIG. I is a hook member 40 which is rigidly attached to the door stop block 41 and adajcent the free end portion of the lever arm 34 as shown in FIG. 2. This locking hook member 40 is in line with the latch 42 whichis positioned at the end of the guide rail 13 and is pivotally attached to the door retainer and latch support bracket 44.
Referring now in particular to FIGS. 2, 3 and 4 a more detailed description of the latch and locking arrangement will be given. The latch unit 42 includes a .nose portion 46 which is positioned to cooperate with the locking hook 40 of the door 12 and engage the same to hold the door in the fully open position. The latch assembly 42 also includes a latch extension 48 which extends beyond the nose 46 of the latch 42 and is positioned vertically adjacent the lever arm 34 of the unlocking lever 32 when the door is fully open and locked in the open position. A flat spring 50 is mounted on the support bracket 44 and engages a finger 51 of the latch 42 to provide a biasing force to urge the nose 46 of the latch downward at all times.
THE OPERATION As illustrated in FIG. 1, when the sliding door 12 is moved from the closed position the door would be unlocked by disengagement of the door lock 16 followed by movement of the fork of a lift truck 33 into the pusher block 22 to slide the door along the support rail 13 to the position ilustrated in FIG. 2 adjacent the door latching arrangement 42. As the door is moved to the far right of the guide rail 13 the lower corner stop block 41 will abut the latch mounting and support bracket 44 and further movement of the door will be prohibited. As the door moves into abutting relation with the mounting and support bracket 44 the hook 40 will move under the nose 46 of the latching assembly 42 moving the latch pivotally upwardly as the nose 46 passes thereunder. The locked position of the door is illustrated in FIG. 3 which shows how the hook 40 is engaged by the nose 46 of the latch 42 to securely restrain the door from any sliding movement.
To close the freight car door by the use of a fork of a lift truck the form is moved into position in the pusher block 22 where the fork 33 will engage the upstanding flange 36 of the unlocking lever 32 and push the upstanding flange 32 into engagement with the partition 28 at which time the lever arm portion 34 will be moved pivotally and vertically and in such movement to engage the latch extension 48 and disengage the locking latch 42 from engagement with the hook 40 of the door 12. Thereafter as a fork lift truck moves horizontally the door will be pushed closed after the automatic unlocking of the door has occurred.
Thus it is noticed that a freight car door which is generally a very heavy and cumbersome unit may be conveniently and efficiently closed by the use of a powered fork lift truck without requiring the truck operator to dismount the truck and unlock the door prior to the closing of the freight car door 12. The automatic unlocking feature of the present invention also insures that the door is not urged closed when still restrained by a locking device by providing a lock tripping mechanism which releases the lock automatically as the car door is pushed closed.
The foregoing description and drawings merely explain and illustrate the invention and the invention is not limited thereto, except insofar as the appended claims are so limited, as those skilled in the art who have the disclosure before them will be able to make modifications and variations therein without departing from the scope of the invention.
What is claimed is:
1. in a railway car having a sliding door mounted for longitudinal opening movement on a support rail and having a door pusher block for use in opening and closing of the door by a lift truck or other powered device, a door locking and restraining device for retaining the door in the open position and including:
a door mounted lock element and a car mounted lock element positioned for cooperative engagement to securely lock said door in the open position;
a door stop block member attached to said door;
a door retainer attached to said car and operatively associated with the stop block member to limit longitudinal movement of the door;
an unlocking lever pivotally attached to said freight car door and having an upstanding portion adjacent said door pusher block, and having a lever arm portion adjacent the car mounted lock element when said door is in the locked open position to thereby permit disengagement of said door mounted lock element and the car mounted lock element as the door is pushed closed.
2. The invention according to claim 1, and:
said door pusher block including a partition extending vertically and transversely;
said upstanding portion of the unlocking lever positioned adjacent and spaced from said partition to permit limited rotation of the unlocking lever.
3. The invention according to claim 1, and:
said door mounted lock element being a lock hook member extending upwardly from and secured to said door stop block;
said car mounted lock element being a pivoted latch member having a nose portion engageable with said lock hook to thereby retain the door.
4. The invention according to claim 3, and:
said car mounted lock element including a latch extension engageable by said lever arm portion of the unlocking lever to disengage the door mounted lock element and the car mounted lock element.
5. The invention according to claim 3, and:
said pivoted latch member having a finger portion spaced from said latch extension;
a biasing means operatively engaging the finger portion of said latch member to thereby urge the latch nose portion into engagement with the door mounted lock hook.
6. A door latching and automatic unlocking device for use on the door of a railway freight car and comprising:
a pusher block fixedly attached to said car door;
an unlocking lever member attached to said door and having a flange portion operatively positioned adjacent said pusher block and spaced therefrom, and having an arm portion;
a door mounted lock hook element positioned adjacent the unlocking lever arm portion;
a car mounted pivoted latch means engageable with the door mounted lock hook element;
said latch means having an extension engageable by the arm portion of the unlocking lever member for removal of the latch means from locking engagement with said lock hook element; and,
said flange portion of the unlocking lever member cooperating with said pusher block to permit limited operative movement of the unlocking lever member.
7. The invention according to claim 6, and:
said car door having a stop block portion;
said car mounted latch means being positioned on a door retainer bracket which cooperates with the said stop block portion on said door to limit sliding movement of said car door;
a spring biasing member extending from the retainer bracket to the pivoted latch means.
8. The invention according to claim 7, and:
said pusher block having a transversely and vertically extending partition wall;
said latch means extension spaced from the partition wall to permit limited rotation of the unlocking lever member for unlocking pivoted latch means from the door mounted lock hook element.
* t t t

Claims (8)

1. In a railway car having a sliding door mounted for longitudinal opening movement on a support rail and having a door pusher block for use in opening and closing of the door by a lift truck or other powered device, a door locking and restraining device for retaining the door in the open position and including: a door mounted lock element and a car mounted lock element positioned for cooperative engagement to securely lock said door in the open position; a door stop block member attached to said door; a door retainer attached to said car and operatively associated with the stop block member to limit longitudinal movement of the door; an unlocking lever pivotally attached to said freight car door and having an upstanding portion adjacent said door pusher block, and having a lever arm portion adjacent the car mounted lock element when said door is in the locked open position to thereby permit disengagement of said door mounted lock element and the car mounted lock element as the door is pushed closed.
2. The invention according to claim 1, and: said door pusher block including a partition extending vertically and transversely; said upstanding portion of the unlocking lever positioned adjacent and spaced from said partition to permit limited rotation of the unlocking lever.
3. The invention according to claim 1, and: said door mounted lock element being a lock hook member extending upwardly from and secured to said door stop block; said car mounted lock element being a pivoted latch member having a nose portion engageable with said lock hook to thereby retain the door.
4. The invention according to claim 3, and: said car mounted lock element including a latch extension engageable by said lever arm portion of the unlocking lever to disengage the door mounted lock element and the car mounted lock element.
5. The invention according to claim 3, and: said pivoted latch member having a finger portion spaced from said latch extension; a biasing means operatively engaging the finger portion of said latch member to thereby urge the latch nose portion into engagement with the door mounted lock hook.
6. A door latching and automatic unlocking device for use on the door of a railway freight car and comprising: a pusher block fixedly attached to said car door; an unlocking lever member attached to said door and having a flange portion operatively positioned adjacent said pusher block and spaced therefrom, and having an arm portion; a door mounted lock hook element positioned adjacent the unlocking lever arm portion; a car mounted pivotEd latch means engageable with the door mounted lock hook element; said latch means having an extension engageable by the arm portion of the unlocking lever member for removal of the latch means from locking engagement with said lock hook element; and, said flange portion of the unlocking lever member cooperating with said pusher block to permit limited operative movement of the unlocking lever member.
7. The invention according to claim 6, and: said car door having a stop block portion; said car mounted latch means being positioned on a door retainer bracket which cooperates with the said stop block portion on said door to limit sliding movement of said car door; a spring biasing member extending from the retainer bracket to the pivoted latch means.
8. The invention according to claim 7, and: said pusher block having a transversely and vertically extending partition wall; said latch means extension spaced from the partition wall to permit limited rotation of the unlocking lever member for unlocking pivoted latch means from the door mounted lock hook element.
US00247644A 1972-04-26 1972-04-26 Freight car door latching device Expired - Lifetime US3788007A (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6226924B1 (en) 1999-09-20 2001-05-08 Degelman Industries Ltd. Sealing rail car door
US6591761B2 (en) 2000-09-15 2003-07-15 General Electric Railcar Services Corporation Sealing door for a rail car
US20110100074A1 (en) * 2009-11-02 2011-05-05 Master Lock Company Llc Safe with dual locking mechanism
US20140265356A1 (en) * 2013-03-18 2014-09-18 Great Computer Corporation Fastener
US11255114B2 (en) * 2017-01-18 2022-02-22 Facc Ag Locking device and sliding door with locking device
US20220274473A1 (en) * 2021-02-26 2022-09-01 Westinghouse Air Brake Technologies Corporation External sliding threshold assembly for vehicle doors

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1181948A (en) * 1914-05-29 1916-05-02 William E Constable Car-door.
US3044814A (en) * 1960-01-29 1962-07-17 Eastern Co Door control mechanism

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1181948A (en) * 1914-05-29 1916-05-02 William E Constable Car-door.
US3044814A (en) * 1960-01-29 1962-07-17 Eastern Co Door control mechanism

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6226924B1 (en) 1999-09-20 2001-05-08 Degelman Industries Ltd. Sealing rail car door
US6591761B2 (en) 2000-09-15 2003-07-15 General Electric Railcar Services Corporation Sealing door for a rail car
US20110100074A1 (en) * 2009-11-02 2011-05-05 Master Lock Company Llc Safe with dual locking mechanism
US8695385B2 (en) * 2009-11-02 2014-04-15 Master Lock Company Llc Safe with dual locking mechanism
US20140265356A1 (en) * 2013-03-18 2014-09-18 Great Computer Corporation Fastener
US11255114B2 (en) * 2017-01-18 2022-02-22 Facc Ag Locking device and sliding door with locking device
US11788327B2 (en) 2017-01-18 2023-10-17 Facc Ag Locking device and sliding door with locking device
US20220274473A1 (en) * 2021-02-26 2022-09-01 Westinghouse Air Brake Technologies Corporation External sliding threshold assembly for vehicle doors
US11932289B2 (en) * 2021-02-26 2024-03-19 Westinghouse Air Brake Technologies Corporation External sliding threshold assembly for vehicle doors

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AS Assignment

Owner name: PULLMAN STANDARD INC., 200 S. MICHIGAN AVE., CHICA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:M.W. KELLOGG COMPANY, THE;REEL/FRAME:004370/0168

Effective date: 19840224