Spring-arm Catch Patents (Class 292/152)
  • Patent number: 10808440
    Abstract: A safe and user-friendly door, especially for logistics containers, which preferably includes a quadrilateral frame, defining the perimeter for the door. A latch is provided movably to the frame so as to be manipulated between a locking state, in which at least a distal portion of the latch protrudes outside the perimeter, and a released state, in which the distal portion is flush with or inside the perimeter. The frame also preferably includes a diagonal guide, which is configured to guide the latch between the locking state and the released state by allowing deviation of the latch along a path diagonal to the quadrilateral shape of the frame.
    Type: Grant
    Filed: November 1, 2017
    Date of Patent: October 20, 2020
    Assignee: K. Hartwall Oy Ab
    Inventors: Markku Tiilikainen, Mikko Järvi
  • Patent number: 9959692
    Abstract: Provided is a locking unit for a housing, comprising at least two doors for locking each housing opening. The locking unit has a locking element module for each of the doors, and the module has at least one locking body and a locking drive for actuating the locking body. The locking drive has a common drive element for the locking element modules, which drive element can be moved about a displacement path, and which, in a first displacement position, brings the locking body, for only one of the doors or only a first group of doors, of the doors into an unlocking position, and in a second displacement position, brings the locking body for all doors into an unlocking position. The invention also relates to a housing comprising a locking unit of this type, and to a method for unlocking one or more doors of a housing of this type.
    Type: Grant
    Filed: May 26, 2016
    Date of Patent: May 1, 2018
    Assignee: Deutsche Post AG
    Inventors: Horst Hild, Ramin Benz, Christoph Dautz, Christian Carstens
  • Publication number: 20140319849
    Abstract: A self-contained combination latch and cam lock adapter module affixes to the rear of any lock (keyed or non-keyed) that has a requisite mating feature. The module is alignable in any of four positions (up, down, left, and right) on the back of the lock for latching in any installed position. The module allows a user to slam closed an associated door or drawer without having to rotate the lock into a locked position. The module retrofits in the field by removing and replacing an existing fixed cam. In one embodiment, a mating part is rotationally spring-loaded so that when the key or knob is turned and then released, the module automatically returns to its locked position, ready to be shut.
    Type: Application
    Filed: March 27, 2014
    Publication date: October 30, 2014
    Applicant: COMPX INTERNATIONAL INC.
    Inventors: John Y. Kamin, Robert E. Dalton, JR.
  • Patent number: 8757673
    Abstract: A cover is releasably secured to a fitting base. The fitting base includes a bottom and sidewalls with a top edge. The cover includes a top having a latch receiving area, a bottom opposite the top and a sliding latch. The sliding latch is positioned on the latch receiving area of the cover. The sliding latch includes a first end with a finger tab, a main body and a second end with locking feet. In the closed position, the sliding latch secures the cover to the cable fitting base.
    Type: Grant
    Filed: September 8, 2009
    Date of Patent: June 24, 2014
    Assignee: Pandult Corp.
    Inventors: David R. Davis, Scott M. Lesniak, Dennis J. Waszak, Andrew J. Chaloupka, Robert Nicoli
  • Patent number: 8733803
    Abstract: A fastener for a transport container includes two portions to be connected and wherein the fastener includes a fastener flange arranged in a first cup and a displaceable fastener hook tiltably arranged in a second cup, the hook engaging behind the fastener flange in a closed position, it is provided in that at least one spring is disposed such that the fastener hook is pushed toward the bottom of the second cup into a rest position.
    Type: Grant
    Filed: February 2, 2012
    Date of Patent: May 27, 2014
    Assignee: Adam Hall GmbH
    Inventor: Martin Drumm
  • Publication number: 20100199454
    Abstract: A latch assembly for a central vacuum cleaner. The latch includes a buckle attached to a vacuum housing. The latch also includes a lower latch assembly having a bracket connected to and extending laterally from a dirt container, a locking member mounted on the bracket and being movable between a first position in which the a lock engages the buckle to prevent removal of the dirt container, and a second position in which the lock does not engage the buckle. At least a portion of the bracket is configured as a rigid handle adapted to be held by a user to remove and replace the dirt container. A button may be provided to operate the locking member, and a spring may be provided to bias the button to one position. A central vacuum cleaner incorporating a latch is also provided.
    Type: Application
    Filed: February 4, 2010
    Publication date: August 12, 2010
    Inventors: Anthony Pruitt, Matthew J. Arteaga, Bart K. Bieker, Davin Vandenbroeke
  • Publication number: 20100109348
    Abstract: A retractable locking pin. The locking pin includes a catch, a biasing means, a stop, a strut and an activation member. The catch is radially respositionable relative to the longitudinal axis of the locking pin as between an outward expanded position and an inward contracted position. The biasing means biases the catch towards the outward expanded position. The stop is longitudinally spaced from the catch and extends radially outward from the longitudinal axis. The strut cooperatively interconnects the biasing means and the stop. The activation member is operably associated with at least one of the catch and the biasing means for repositioning the catch towards the inward contracted position against the bias of the biasing means when the activation member is repositioned in a first direction along a path relative to the stop.
    Type: Application
    Filed: January 9, 2010
    Publication date: May 6, 2010
    Inventor: Zine Eddine Boutaghou
  • Publication number: 20100084875
    Abstract: The invention relates to a lock for a window having a button and a spring for biasing the button to move from an unlocked position to a locked position; a spring clip in contact with the button for holding the button in the unlocked position; a trigger for engaging with the spring clip to release the button and allow the spring to move the button toward the locked position; a hook for moving from an unlocked position to a locked position in correspondence with the button moving from the unlocked position to the locked position; and a rotatable arm with one end attached to the button and another end attached to the hook, the rotatable arm for transmitting a movement of the button to a movement of the hook. A magnet is attached to the trigger and the magnet is moved, which in turn actuates the trigger, by a polarity of another magnet.
    Type: Application
    Filed: October 5, 2008
    Publication date: April 8, 2010
    Applicant: INTERLOCK USA, INC.
    Inventors: Garth C. Keighley, Mathew D. Ruspil
  • Patent number: 7338096
    Abstract: A press-type latch device for establishing latched and unlatched states with a hook includes: a press member having a press portion and connection portions extending from the press portion; and a spring member having a bottom portion and first and second latch arms extending from the bottom portion. A latch space is formed between the first and second latch arms to allow the hook to enter into the latch space and engage with at least one of the latch arms. The spring member has insertion holes formed on the first latch arm to allow the connection portions to pass through and abut against the second latch arm, when pressing the press portion, the second latch arm is pushed away from the first latch arm by the abutting connection portions, thereby unlatching the hook from the latch space.
    Type: Grant
    Filed: November 8, 2005
    Date of Patent: March 4, 2008
    Assignee: Inventec Corporation
    Inventors: Shu-Kun Si, Tien-Chang Lin
  • Patent number: 7213426
    Abstract: A method and apparatus for providing a storm door mortise lock that prevents lockout with a lock body having opposed side plates and a cam in between the side plates, the cam being in operative interaction with a dead bolt assembly. The mortise lock body also may include one or more stops within the deadbolt assembly to limit the rotation of the cam and prevent a lockout situation. A thumb turn button and key cylinder are secured to opposite escutcheon plates. A spindle traverses from the key cylinder through the cam through hole and terminates in the mounting slot of the thumb turn button. Rotation of either the thumb turn button or the key cylinder turns the spindle and actuates the cam that actuates the dead bolt assembly.
    Type: Grant
    Filed: December 9, 2003
    Date of Patent: May 8, 2007
    Assignee: Betteli, Inc. Hong Kong
    Inventor: Wu Feng Qing
  • Patent number: 7044328
    Abstract: A latching system for use with a dispenser having a cover hingedly connected to a back plate for movement between open and closed positions. The cover includes a latch plate or tongue which is disposed adjacent its top or now hinged end. The latch plate has one or more through apertures therein for engagement with an engagement bar carried by the back plate with the engagement bar having one or more upwardly projecting ribs for engagement with the apertures of the latch plate when the cover is closed. The back plate also carries a movable latch bar selectively movable into contact with the latch plate to disengage the latch plate from the projecting ribs. The back plate also includes one or more projecting support ribs underlying the cover it its closed position.
    Type: Grant
    Filed: July 8, 2002
    Date of Patent: May 16, 2006
    Inventor: Nick E. Ciavarella
  • Patent number: 6666486
    Abstract: A slide bolt unit is provided for releasibly locking a door or window or the like, such as a semi-active door in a double door entry set. The slide bolt unit includes an elongated slide bolt carried by a channel-shaped housing adapted for recessed mounting into a side edge of a door or the like. An actuator tab on the slide bolt is exposed through a position control slot formed in the housing for fingertip actuation to displace the slide bolt between an advanced position engaging a keeper on an adjacent header or sill or the like to lock the door in a closed position, and a retracted position to permit door opening.
    Type: Grant
    Filed: September 21, 2000
    Date of Patent: December 23, 2003
    Assignee: W & F Manufacturing
    Inventor: Paul D. Fleming
  • Patent number: 6554327
    Abstract: A latch assembly for securing a cover to a container comprises a base for mounting to the container cover adjacent to an edge thereof, a cover member secured to the base and a slider slidable between the base and cover member between a latched position wherein a portion of the slider interfits with the container and an unlatched position wherein the slider portion is disengaged from the container. A headed spring member interposed between the slider and the base interfits with holes or recesses in the slider to signal when the slider has reached its latched and unlatched positions and to releasably retain the slider at those positions.
    Type: Grant
    Filed: April 18, 2002
    Date of Patent: April 29, 2003
    Assignee: Riley Medical, Inc.
    Inventor: Edward D. Riley
  • Patent number: 6550832
    Abstract: An actuator mechanism is defined by a lever arm that is integrally connected to resilient spring members. The lever arm is movable between first and second positions and is normally biased into the first position in which the actuator may engage an adjacent member, for example to provide a fluid-tight sealing relationship of to lock the adjacent member in a stationary position relative to the lever arm. Movement of the lever arm into the second position releases the engagement with the adjacent member. In one embodiment the actuator is defined by a pair of overlapping, oppositely oriented slots cut into a monolithic member to define both the lever arm and the spring members. The lever arm rocks in a teeter-toter fashion when actuated and both ends of the lever arm can be utilized to perform work.
    Type: Grant
    Filed: July 30, 2001
    Date of Patent: April 22, 2003
    Assignee: Mentor Group, LLC
    Inventors: William J. McHenry, Jason L. Williams
  • Patent number: 6508495
    Abstract: A latch assembly for securing a cover to a container comprises a base for mounting to the container cover adjacent to an edge thereof, a cover member secured to the base and a slider slidable between the base and cover member between a latched position wherein a portion of the slider interfits with the container and an unlatched position wherein the slider portion is disengaged from the container. A headed spring member interposed between the slider and the base interfits with openings in the slider to signal when the slider has reached its latched and unlatched positions and to releasably retain the slider at those positions.
    Type: Grant
    Filed: November 30, 2001
    Date of Patent: January 21, 2003
    Inventor: Edward D. Riley
  • Patent number: 6457751
    Abstract: A locking assembly for an astragal that would be attached to the inactive door of a double door unit that would be installed in a residence or a building. The astragal would be attached to the edge of the inactive door in the space between the inactive door and the active door. A separate locking assembly would be attached adjacent the top end of the door and also adjacent the bottom end of the door. A plug having an elongated locking bolt extending from it is mounted in the front end of the carriage member. Additional structure is provided for reciprocal travel of the carriage member between a locked position and an unlocked position.
    Type: Grant
    Filed: January 18, 2001
    Date of Patent: October 1, 2002
    Inventor: John F. Hartman
  • Patent number: 6212366
    Abstract: A housing assembly (100) includes a housing (101) having a first opening (105), a door (114) coupled to the housing at the first opening, wherein the door is slidable between opened and closed positions with the housing, a first latch (110) coupled to the door, the first latch having a first detent (112), a second latch (104) coupled to the housing, the second latch having an aperture (106) for engaging with the first detent of the first latch in the closed position, and a button (108) coupled to the housing and coupled to the second latch, wherein depression of the button disengages the first and second latches from each other, thereby permitting the door to slide to the opened position. The housing assembly further includes a selective call receiver (200) for receiving messages from a radio communication system.
    Type: Grant
    Filed: March 2, 1998
    Date of Patent: April 3, 2001
    Assignee: Motorola, Inc.
    Inventors: John Philip Cheraso, Gregory Paul Cheraso
  • Patent number: 6073978
    Abstract: A dishwasher lock includes a first component adapted to be secured to the underside of a counter top directly above the forward upper edge of a dishwasher and a second component slidably and detachably secured to the first component. The second component includes an L-shaped plate adapted to be disposed in overlying engagement with the front of a dishwasher to prevent opening of the dishwasher door when the second component is secured to the first component.
    Type: Grant
    Filed: March 10, 1999
    Date of Patent: June 13, 2000
    Inventor: Ronald Sherman
  • Patent number: 6038892
    Abstract: A keylock assembly including both a keylock device for locking a door to a chassis frame and a securing device for securing the door to the chassis frame so that the door can be secured to the chassis frame without having to lock the door. The chassis may house a computer system that includes a processor and a peripheral device. The keylock device includes a latch member and a keylock wherein the securing device includes a threaded portion screwed into the keylock to attach the latch member to the keylock. One example of a securing device attached to the keylock device is a ball stud. To secure the door to the chassis frame, the ball stud engages a corresponding structure, such as a two pronged clip, when the door is in a closed position with respect to the chassis frame. The door may be removably and pivotally attached to the housing frame via a hinge.
    Type: Grant
    Filed: January 27, 1998
    Date of Patent: March 21, 2000
    Assignee: Dell USA, L.P.
    Inventor: Ty. R. Schmitt
  • Patent number: 5934715
    Abstract: A safety device, of the anti-false maneuver type, capable of impeding the actuation of a locking fitting upon opening of a leaf of a door, window or the like, this safety device including, on the one hand, a support in the shape of a casing capable of being inserted against a face-plate and, on the other hand, a locking finger passing through this latter, under the action of springy restoration means, with a view to locking an actuating rod in translation, this when the door or window is open. In particular, the casing defined by the support and serving as a housing for the locking finger includes, at the level of each of its opposite sides parallel to the plane of the leaf on which it is fitted, an opening serving for the passing through of the connecting lug which is capable of being fitted onto the locking finger with a view to actuating same under the action of an actuating lug extending.
    Type: Grant
    Filed: November 24, 1997
    Date of Patent: August 10, 1999
    Assignee: Ferco International, Ferrures et Serrures de Batiment
    Inventors: Gerard Prevot, Richard Strassel
  • Patent number: 5581963
    Abstract: Wall elements have edge cavities that extend inwardly through their side edge and have locking lugs inwardly of the cavities. Lock pins are provided between the wall elements for each cavity and are associated with the locking lugs for securely locking two wall elements together by moving the wall elements into edge-to-edge abutting relation. The cavities have a leveraging surface capable of pivoting the lock pins out of engagement with the locking lugs and thus disconnection of the wall elements upon relative vertical movement of adjacent wall elements. The invention is capable of assembling knock-down walled enclosures such as work spaces of substantially any size and shape.
    Type: Grant
    Filed: March 24, 1995
    Date of Patent: December 10, 1996
    Inventors: Robert W. Snair, Donald R. Snair
  • Patent number: 5476133
    Abstract: A gate latch for a wire gate which is mounted on the upper end of a wooden post for selectively retaining the wooden post of the wire gate therein. The gate latch includes a pocket which is positioned inwardly of a pair of post retention members. The insertion of the wooden post into the pocket of the latch causes the post retention members to deflect outwardly to permit the post to be received in the latch. The post may be removed from the latch by moving one or both of the retention members outwardly with respect to each other.
    Type: Grant
    Filed: July 12, 1994
    Date of Patent: December 19, 1995
    Inventor: Loren H. Torkelson
  • Patent number: 5375712
    Abstract: A security container for storing various articles is formed with a groove along one edge of a cover which extends parallel with a similar groove formed on a base of the container, when the cover is in a closed position on the base. A generally U-shaped slide latch is slidably removably mounted in the spaced grooves for movement therealong between locked and unlocked positions. A plurality of projections on the slide latch engage flexible tabs on the base to secure the slide latch in locked position upon an open end of the slide latch reaching a stop formed on an end of the base. A manually operated key has tangs which are inserted through openings formed in the slide latch to disengage the flexible tabs from the projections, permitting the slide latch to be slidably removed from the container grooves enabling the cover to be opened from the base.
    Type: Grant
    Filed: September 25, 1992
    Date of Patent: December 27, 1994
    Assignee: Alpha Enterprises, Inc.
    Inventor: James T. Weisburn
  • Patent number: 5205595
    Abstract: A simple drawer lock mechanism used in connection with a portable drafting table, combines in a unitary assembly a bolt, an actuating prong passing through an opening in the drawer face, and resilient biasing legs projecting from each side of the bolt. The actuating prong can be squeezed through the opening. The biasing legs can bear against the bottom of the drawer or be anchored to the back of the drawer face.
    Type: Grant
    Filed: June 23, 1992
    Date of Patent: April 27, 1993
    Inventor: Oswald C. Svehaug
  • Patent number: 5147099
    Abstract: A child-proof latch which prevents a child from directly accessing the latch member (arm) itself, thus rendering it extremely difficult for a child to open a cabinet secured by the latch. The latch of the invention comprises a latch member, a support for the latch member, and an actuator member for selectively moving the latch member between its extended position (in which the cabinet is prevented from opening) and retracted position (in which the cabinet is allowed to open). Mutually engageable locking surfaces are provided on the actuator and the support, such that the actuation is normally locked with the latch member in its normally extended position. In order to open the cabinet, it is necessary to first disengage the locking surfaces and then depress the actuator sufficiently to move the latch, which is biased toward its extended position, to its retracted position. As it is unlikely that a child could accomplish both tasks, the latch is extremely secure.
    Type: Grant
    Filed: September 30, 1991
    Date of Patent: September 15, 1992
    Assignee: Kidie Products, Inc.
    Inventors: Thomas McLinden, Ralph M. Nowak
  • Patent number: 5094485
    Abstract: A locking pin assembly for locking an end of a cargo container onto the container-carrying platform of a transport vehicle. The assembly has a retractable locking pin movable between a fully rearwardly extended container-locking position and a fully forwardly retracted container-freeing position. The locking pin is movable between these two positions by manually swinging a pivoted operating lever which extends through a longitudinally elongated U-shaped slot in a rigidly immovable latching gate. A bias spring urges the operating lever into the ends of the U-shaped slot to latch the lever and hence latch the locking pin in the absence of manual pressure on the lever. De-latching of the operating lever and locking pin is accomplished by a single-handed operation involving merely pressing down on the lever, with de-latching being automatic on releasing the lever.
    Type: Grant
    Filed: March 14, 1991
    Date of Patent: March 10, 1992
    Assignee: Multi-Stroke Handbrake Controls Limited
    Inventor: Peter Lycett
  • Patent number: 5092250
    Abstract: An anti-pilferage device is attached to the car body of a railroad flatcar of the type for carrying containers. The device has a mounting plate attached to the car frame at a point adjacent the doors of a container loaded on the car. A barrier is tiltably supported on the mounting plate in a manner which permits free movement if the barrier is bumped during loading of a container. The barrier is movable between a raised, operative position and a lowered, retracted position. A spring biases the barrier to the operative position, wherein it is in the path of a swinging container door to prevent it from being opened. In the retracted position the barrier is below the level of the container floor. A plurality of anti-pilferage devices may be mounted on the car to accommodate containers of various lengths. The barriers are automatically movable between the retracted position and operative position without the need for manual actuation.
    Type: Grant
    Filed: November 1, 1990
    Date of Patent: March 3, 1992
    Assignee: TTX Company
    Inventor: William R. Halliar
  • Patent number: 4993758
    Abstract: A housing closure apparatus for latching a swingable door which covers an opening in a housing. The housing closure apparatus includes a latching mechanism having a latch guide structure with a channel therein for captivating a slidable latch. A latch receiving member is situated on the housing to receive a portion of the latch therein to latch the door closed. In one embodiment of the invention, the latch mechanism exhibits a dual locking capability such that the latch is lockable in a latch closed position against undesired opening due to shock and vibration, and is further lockable in a latch open position.
    Type: Grant
    Filed: May 22, 1989
    Date of Patent: February 19, 1991
    Assignee: Databook, Inc.
    Inventor: Richard W. Schmutzler
  • Patent number: 4962954
    Abstract: A latch or lock enabling a hinged burglar bar gate to be opened by a person on the interior of the protected building. Intruders cannot reach the lock. It includes a housing with an opening for hand engagement. In the opening, a spring supported lock member is pushed by hand to unlatch. Hand operation is constrained by the housing deployment, limiting use to a person near the housing and on the interior of the burglar bar gate.
    Type: Grant
    Filed: April 6, 1989
    Date of Patent: October 16, 1990
    Inventor: Barry Ross
  • Patent number: 4921033
    Abstract: A security door system using a roll-up door fabricated of curtain sections reinforced by extruded metal cross beams. The system is designed for installation in a closet doorway or the like to provide security for valuables which may be stored in the closet or to keep dangerous implements, such as guns, away from children in a household, and the like. The door has a slide lock with a re-lock assembly for back up in the event that the primary key lock is broken. The door is designed for shipment in kit form and includes a number of door track sections with mating splices for joining the sections together. The design and construction of the system provide a low cost solution to the problem of developing secure storage within a residence, school, business establishment or the like in a unit which is aesthetically pleasing in design and is inexpensive to purchase and install.
    Type: Grant
    Filed: November 16, 1988
    Date of Patent: May 1, 1990
    Inventors: Harry E. Finch, Geza J. Szayer
  • Patent number: 4907832
    Abstract: A secondary locking mechanism having a lock mountable to a sliding closure, such as a sliding window or sliding patio door, and a stop block mountable to a frame member which mounts the sliding closure. The lock has a pivotable stop arm which is spring-retained in an inactive position wherein a foot of the stop arm travels in a path of movement along with the sliding closure which is out of interfering relation with the stop block and an active position wherein the foot of the stop arm is positioned to engage beneath an inclined end of the stop block to prevent further movement of the sliding closure in a direction toward the stop block. One or more stop blocks can be mounted in various positions on the frame member to assist in locking the sliding closure in a fully-closed position and to prevent further opening movement of the sliding closure when it is in a partially-open vent position.
    Type: Grant
    Filed: August 29, 1988
    Date of Patent: March 13, 1990
    Assignee: Truth Incorporated
    Inventor: Whitley Pemberton
  • Patent number: 4807687
    Abstract: A security door system using a roll-up door fabricated of curtain sections reinforced by extruded metal cross beams. The system is designed for installation in a closet doorway or the like to provide security for valuables which may be stored in the closet or to keep dangerous implements, such as guns, away from children in a household, and the like. The door has a slide lock with a re-lock assembly for back up in the event that the primary key lock is broken. The door is designed for shipment in kit form and includes a number of door track sections with mating splices for joining the sections together. The design and construction of the system provide a low cost solution to the problem of developing secure storage within a residence, school, business establishment or the like in a unit which is aesthetically pleasing in design and is inexpensive to purchase and install.
    Type: Grant
    Filed: March 31, 1986
    Date of Patent: February 28, 1989
    Inventors: Harry E. Finch, Geza J. Szayer
  • Patent number: 4732418
    Abstract: A door latch employs removable standoff posts in a concealed mounting, and a lockable latching mechanism which includes a locking slide manually actuatable from the inside of the door and movable from the locked to the unlocked position by a rotary cam member connected to a key-operated lock cylinder on the outside of the door with a forked one-piece operator shaft spanning the rotary cam member to interconnect the inside handle and the outside knob.
    Type: Grant
    Filed: February 20, 1986
    Date of Patent: March 22, 1988
    Assignee: National Manufacturing
    Inventors: Marlin D. Crown, James A. Edeus
  • Patent number: 4621846
    Abstract: A device that prevents the unauthorized removal of a retainer pin that is slideably disposed within a bore which is collectively defined by a plurality of bores formed in the doors or windows to be locked, or frames therefor, when the same are fully closed. The device is a flat, elongate member having a transverse bend formed therein so that the device provides an inclined wall portion that projects at an angular relation to a base portion thereof. The inclined wall is apertured to receive the retainer pin and the edges of the aperture frictionally engage the pin so that it can not be removed from the bore within which it is disposed in the absence of a transient deformation of the inclined wall which decreases the angle between the inclined wall portion and the base portion of the device, thereby causing the edges of the aperture to release the pin.
    Type: Grant
    Filed: October 1, 1984
    Date of Patent: November 11, 1986
    Inventor: Don Lefor
  • Patent number: 4428605
    Abstract: A latching drop lock for a movable closure member such as a sliding glass window includes a lock body that supports a pivotably mounted, elongated latch element. The lock body and the latch element are slidable as a unit along one side of the movable frame and are slidably engaged in a peripheral channel thereof. The lock body includes a lock bolt element that is insertable in an aperture in the fixed frame to secure the sliding window in a closed position. The elongated latch element includes at one end a detent that is fixedly engageable with the window frame to secure the drop lock in the locked position. The latch element further includes an integral resilient bias spring that urges the lock element rotated about its pivot axis so as to engage the detent whenever the drop lock is slid to the locked position. The latch element further includes manually depressible means operable to disengage the detent and unlatch the drop lock.
    Type: Grant
    Filed: April 1, 1982
    Date of Patent: January 31, 1984
    Assignee: Vanguard Plastics Ltd.
    Inventor: James S. Follows
  • Patent number: 4400026
    Abstract: A tilt latch for a window sash including a base member mountable on a sash and a slide member disposed for sliding movement in a channel formed in the base member and resiliently biased toward an extended position in which a nose-shaped first end of the slide member engages a window frame to prevent the sash from tilting out of the frame. A downward projection formed on a second end portion of the slide member interferingly engages an end edge of the base member to arrest movement of the slide member at the extended position, but this second end portion of the slide member is dimensioned to enable the projection to be lifted manually out of such engagement so that the slide member can be moved beyond the extended position.
    Type: Grant
    Filed: October 2, 1980
    Date of Patent: August 23, 1983
    Assignee: Alcan Aluminum Corporation
    Inventor: John M. Brown, Jr.
  • Patent number: 4390198
    Abstract: A single molded plastic part forms the actuator, the latching beam and the retainer for holding the latch mechanism in position, and also provides detented open and closed positions. The latch mechanism can be used with the door or closure for an opening in a housing, such as the battery door for a small portable electronic device. The one-part latch has an actuating button on one side of the door which cooperates with resilient retainer tabs to hold the latch in movable engagement with the door. An integral latching beam may extend on the other side of the door and be movable to a position to latch the door. Indentations on the beam, or on another part of the latch, can cooperate with a detent cam to hold the latch mechanism in released or open, and latched or closed positions. The latch mechanism can be either slidably or rotatably movable for the latching operation.
    Type: Grant
    Filed: May 27, 1980
    Date of Patent: June 28, 1983
    Assignee: Motorola, Inc.
    Inventor: George J. Selinko
  • Patent number: 4377303
    Abstract: A closure latch mechanism has a slide component linearly movable between latched and unlatched positions, the component having a planar body portion with a flat, resiliently bendable member that is formed as an integral part of the body portion and normally located in the plane thereof. The bendable member carries a detent that is adapted and arranged for reception in a stop forming recess or aperture when the slide is at its latched position. The bendable member assumes an unstressed position in the plane of the body portion when the detent is in the recess and is in a stressed position when the slide is unlocked. The detent follows and slidably engages a surface arranged to retain the member in its stressed position as the slide component moves between its latched and unlatched positions so that the detent automatically enters the recess to lock the device when the slide returns to its locked position.
    Type: Grant
    Filed: August 4, 1980
    Date of Patent: March 22, 1983
    Inventor: Bruce M. McPherson
  • Patent number: 4305610
    Abstract: A fuse access door of a fusible switch enclosure is held closed by a latch slidably mounted thereto. A resilient interlock actuator secured to the door cooperates with a defeatable switch interlock arm to enable switch closure only while the door is closed and to interlock the latch against unlatching movement while the switch is closed. However, depression of the interlock arm via the interlock actuator defeats this interlock to permit access to the fuses while the switch is closed.
    Type: Grant
    Filed: December 13, 1979
    Date of Patent: December 15, 1981
    Assignee: General Electric Company
    Inventors: Benjamin A. Piteo, Jr., Frederick D. Kaufhold
  • Patent number: 4293154
    Abstract: A safety lock for window sashes and the like is provided which comprises a bolt and a locking and mounting sleeve adapted to be inserted in a drilled hole in the sash or other member to be interlocked, the sleeve and bolt being provided with detent means for releasably retaining the bolt in fully inserted locked position, a partially inserted locked position and in retracted unlocked position. The bolt has an enlarged head of substantially the same diameter as the sleeve and the sleeve is recessed in the drilled hole so that the head of the bolt lies flush with the outer surface of the sash or other member where it is inconspicuous and cannot be grasped for withdrawal, withdrawal from fully locked to partially inserted locked position requiring the use of a magnet. A modification of the end of the sleeve may be utilized for attaching the sleeve to the outer wall of a sash or other unit having a hollow interior.
    Type: Grant
    Filed: September 28, 1979
    Date of Patent: October 6, 1981
    Inventor: Melvin K. Cassells
  • Patent number: 4268074
    Abstract: A locking device to prevent relative movement between relatively movable members such as between relatively movable sliding window and sliding door members, said relatively movable members having openings which can be placed in registration in predetermined positions of said members, said locking device including a body portion having opposite surfaces and a projecting member attached to and extending from one of the opposite surfaces thereof for insertion into cooperative engagement with the registered openings in the relatively movable members to prevent relative movement therebetween, and another portion of the said locking device for preventing movement of the projecting member after it is inserted including a member extending in spaced substantially parallel relationship to the projecting member for engagement with one of the relatively movable members to be locked, said last named member including in one form of the invention an integral angularly related portion of the body portion which cooperatively
    Type: Grant
    Filed: November 26, 1976
    Date of Patent: May 19, 1981
    Inventor: James H. Alexander
  • Patent number: 4043476
    Abstract: In a goods transporting or handling receptacle or cart made of metal wire, the lateral walls are adapted to be folded on the bottom thereof and at least one of said lateral walls comprises a notch-like aperture having a shutter hingedly mounted at its bottom edge. Mounted on each side of said one wall is a locking device comprising a sliding bolt engaging a pair of lugs carried by a carrier plate rigid wth said one wall side and formed with a shoulder portion acting as a keeper to said sliding bolt.A resilient clamp is adapted to be engaged by a control member rigid with said sliding bolt for holding the latter either in an intermediate position, in which said shutter is locked in its closed position and said one wall is locked with respect to the adjacent lateral wall, or in a first end position in which said sliding bolt is released from said shutter to permit the opening thereof, or in another end position in which said sliding bolt is released from said adjacent wall.
    Type: Grant
    Filed: November 5, 1976
    Date of Patent: August 23, 1977
    Assignee: Ateliers Reunis Societe Anonyme
    Inventor: Raymond Joseph