Non-shackle Type Patents (Class 70/32)
  • Patent number: 11454050
    Abstract: Systems and apparatuses include a lock including a shackle movable between an unlocked state and a locked state, an electronically actuated blocker selectively engaged with the shackle to inhibit movement of the shackle from the locked state to the unlocked state, the blocker movable between a key override disabled position, a key override enabled position, and an electronic unlock position, and a key cylinder structured to move the shackle to the unlocked state when the blocker is in the key override enabled position.
    Type: Grant
    Filed: November 20, 2018
    Date of Patent: September 27, 2022
    Inventor: Zachary T. Nave
  • Patent number: 11399640
    Abstract: Embodiments of the present invention are directed to merchandise display systems and methods for displaying an article of merchandise. In one example, the system includes a sensor configured to be secured to the article of merchandise. The sensor includes a first engagement member. The system also includes a base configured to removably support the sensor thereon. The base includes a second engagement member configured to releasably engage the first engagement member such that the sensor is locked to the base. The sensor is configured to rotate with respect to the base while locked thereto.
    Type: Grant
    Filed: September 27, 2018
    Date of Patent: August 2, 2022
    Assignee: InVue Security Products Inc.
    Inventors: David N. Berglund, Matthew Thomas Kerley
  • Patent number: 9598128
    Abstract: An object management system and locking mechanism and method. The system comprises a plurality of docking stations and a terminal connected to the docking stations by a network. At least one of the docking stations includes the locking mechanism for locking a locking member secured to an object. The locking mechanism includes: a locking receptacle configured to receive the locking member, as well as a locking shaft with a locked position and an unlocked position. The locking shaft is configured to secure the locking member when the locking shaft is in the locked position while the locking receptacle is receiving the locking member. The locking shaft rotates to switch between the locked position and the unlocked position. The locking mechanism can provide a secure lock on an object, preventing reversal of the locking mechanism and theft of the object.
    Type: Grant
    Filed: November 29, 2013
    Date of Patent: March 21, 2017
    Assignee: 8D Technologies Inc.
    Inventors: Raphaël Assénat, Jean-Sëbastien Bettez
  • Patent number: 8919156
    Abstract: A core replaceable hockey lock includes a housing having a space defined therein. An installation hole is defined in one end thereof and a slit is defined in the inner periphery of the installation hole. An insertion hole is defined in the housing and communicates with the slit. A deadbolt is rotatably installed in the installation hole and has a recess which is located corresponding to the slit. The deadbolt has at least one passive member connected thereto which is located in one end of the housing. A positioning plate is inserted in the slit and the recess to axially position the deadbolt. A positioning pin is inserted into the insertion hole and positions the positioning plate. The hockey lock can use different cores installed therein such as six-bead core, seven-bead core or bead-replaceable core. The user needs only one key to unlock all of the hockey locks.
    Type: Grant
    Filed: February 21, 2014
    Date of Patent: December 30, 2014
    Assignee: Federal Lock Co., Ltd.
    Inventor: Tien-Kao Liu
  • Publication number: 20140298869
    Abstract: A hidden shackle style lock is disclosed. The lock includes a substantially cylindrical housing having a top surface, a bottom surface, and a curved side surface. The lock also includes a first cavity on the bottom surface of the housing extending part way along a thickness of the housing, and a second cavity on the side surface intersecting with the first cavity. A hollow sleeve is slidably attached within the second cavity. The sleeve includes a first end face, a second end face, and a third cavity. The third cavity extends from the first end face to the second face and is substantially coaxial with the second cavity. A shackle having a first end and a second end is fixedly coupled to the first end face of the sleeve. The lock also includes an interchangeable core having a first locking mechanism and a second locking mechanism lockingly disposed within the third cavity, and coupled to the straight shackle.
    Type: Application
    Filed: June 2, 2014
    Publication date: October 9, 2014
    Inventor: Wei Kal WANG
  • Publication number: 20140202219
    Abstract: The invention is a locking device for use with any electrical equipment or appliance or device having a cord and attached electrical plug, it encapsulates the plug end and is lockable such that the electrical device is disabled and can no longer be plugged into a power source. The invention includes a housing of two halves, hinged at one end, with the interior of the housing shaped and dimensioned to receive the electrical plug. The invention also includes a locking mechanism with two latches operable via a special key. The key has a shaft with two portions having differing widths and which are complementary to corresponding apertures in the latches. The invention is useful for controlling the use of electrical devices, for example, gaming consoles and television.
    Type: Application
    Filed: November 23, 2013
    Publication date: July 24, 2014
    Inventor: Richard John Stewart Bolland
  • Patent number: 8646297
    Abstract: A disc brake lock used principally with motorcycles has a body (10) with a U-shaped slot (13) to receive an edge of the disc. A locking pin can be moved to extend through a hole in the disc to fix the lock to the disc. A limb (11) of the U-shaped body (10) that is on the outside when the lock is clamped to the disc contains an alarm system (14) housed in a chamber (28) that cannot be accessed through that limb. The other limb (12), which is between the disc and the wheel, contains a removable cover (34) that, for extra security, can only be opened when the locking pin (16) is retracted. The alarm system (14) is inserted into the chamber (28) through the other limb (12).
    Type: Grant
    Filed: May 12, 2008
    Date of Patent: February 11, 2014
    Assignee: Xena IP Holdings Limited
    Inventor: Ivan Foti
  • Patent number: 8484106
    Abstract: The invention relates to a method for processing a payroll. The method steps include obtaining a compliance rule of a tax agency regarding the payroll, obtaining an update of a payroll parameter from a financial management application (FMA), analyzing the update of the payroll parameter based on the compliance rule of the tax agency to detect a schedule changing event, adjusting the payment schedule of the tax agency based on the schedule changing event to generate an adjusted payment schedule of the tax agency, submitting the adjusted payment schedule of the tax agency and an amount of the payment to the tax agency to a user for approval, accessing a payroll tax paying website of the tax agency, and making the payment to the tax agency using the payroll tax paying website in response to receiving the approval from the user.
    Type: Grant
    Filed: February 24, 2010
    Date of Patent: July 9, 2013
    Assignee: Intuit Inc.
    Inventors: Miriam Nga-Shun Vu, Charles Shieh, Lucinda Kathryn Foss, Lesley K. Grossblatt, Sandra Marie Edwards
  • Patent number: 8307675
    Abstract: A locking device for box-shaped containers (20) having a base and a separable cover each provided with an ear-like extension (20c; 20d) with openings, wherein in the lockable position the openings are in register one with respect to the other. The device comprises a block-shaped housing (10) with a key-operated mechanism (30) comprising a rotor. A slidable locking element is coupled to the rotor so that upon rotation of the rotor by 180° in one or the opposite directions by turning the key, a locking element slides over a certain distance in one or the opposite directions. A cavity is formed in the housing configured to accommodate therein both ear-like extensions (20c; 20d). For locking the container, the locking element is driven in the direction of and across the cavity and openings.
    Type: Grant
    Filed: December 10, 2009
    Date of Patent: November 13, 2012
    Inventor: Meir Avganim
  • Patent number: 8302923
    Abstract: A merchandise display hook includes a display rod and a locking base pivotally attached to the display rod for locking the display hook on a display support. The locking base is configured to pivot relative to the display rod inwardly towards the display support from an unlocked position to a locked position and outwardly from the display support from the locked position to the unlocked position. The display hook includes a first attachment member configured to engage a front surface of the display support and a second attachment member configured to engage a rear surface of the display support. The locking base defines a contact surface configured to engage the front surface of the display support in the locked position. When the locking base is in the locked position, the locking base and the display rod define a first angle therebetween. When the locking base is in the unlocked position, the locking base and the display rod define a second angle therebetween that is less than the first angle.
    Type: Grant
    Filed: July 13, 2009
    Date of Patent: November 6, 2012
    Assignee: InVue Security Products Inc.
    Inventors: Michael Johnston, Jim Sankey
  • Patent number: 8151605
    Abstract: A device is disclosed for locking to a gooseneck-type trailer tongue of the type having a lockable tongue mechanism and a lower surface. A ball member has a semi-spherical upper portion and a lower surface. The lower surface is traversed by a threaded aperture. A peripheral side of the upper portion has at least one set screw aperture traversing through to the threaded aperture. A tang is threaded at a top end thereof for threaded rotational engagement with the threaded aperture of the ball member and includes a lower end that has at least one bolt aperture therethrough. A collar member includes a tang slot traversing the top and bottom surfaces thereof. A puck lock has a selectively positionable bolt adapted to traverse the bolt aperture of the tang to lock the collar member onto the tang and ball member.
    Type: Grant
    Filed: March 12, 2011
    Date of Patent: April 10, 2012
    Inventor: Kenneth G. Gustafson
  • Patent number: 8152194
    Abstract: An object of this invention is to provide a way for a person to lock and secure the hitch of an unhitched utility trailer. Another object of this invention is to allow a person to keep an unhitched utility trailer from being stolen when the utility trailer is not hooked to a truck hitch.
    Type: Grant
    Filed: February 4, 2010
    Date of Patent: April 10, 2012
    Inventors: Larry Landgraf, Sam F. Manna, Jr., Maggie Ann Fitzgerald
  • Patent number: 7918111
    Abstract: A lock device includes a universal spacer, for receiving a lock cylinder, and a plurality of spacer holes where one of the holes is positioned to receive a lock bolt of the lock cylinder. A padlock body houses the universal spacer. A plurality of padlock body holes extends from an interior of a universal spacer hole into the padlock body. The padlock body holes are positioned to match the spacer holes and one of the padlock body holes receives the lock bolt when the lock cylinder is in a locked position. A padlock bolt secures the universal spacer, lock cylinder and padlock body in place when the lock cylinder is in the locked position. When the lock cylinder is in the unlocked position, the universal spacer with the lock cylinder can be removed from the universal spacer hole and the lock cylinder can be replaced with another lock cylinder.
    Type: Grant
    Filed: March 27, 2008
    Date of Patent: April 5, 2011
    Inventor: George Uliano
  • Patent number: 7770422
    Abstract: A lock for engaging a U-shaped staple is disclosed. The lock includes a cylindrical cover that has a front face open at a key hole aperture, a continuous annular side wall, and a rear side that is open at least at a staple slot. A lock cylinder assembly is housed within the interior space of the cylindrical cover and has a key slot in a front face thereof. A barrel is rotatably captured within a cylinder, such that the barrel is only rotatable within the cylinder when a properly-shaped key is inserted into the key slot. The barrel includes a cam follower that rotates between a locked position and an unlocked position. A bolt assembly is fixed at a proximal end to the cam follower and adapted so that a bolt thereof at least partially traverses the staple slot when the cam follower is moved from the unlocked position to the locked position.
    Type: Grant
    Filed: November 3, 2008
    Date of Patent: August 10, 2010
    Inventor: Rafael Sierra
  • Patent number: 7631523
    Abstract: The invention is a security locking device that secures a forklift while hitched to a commercial trailer. The invention includes a “U” shaped base member having a pin hole, a pin, and an attaching locking mechanism. The invention is designed so as to place the “U” shaped base member over the locking pin hole located on the trailer bed, insert the locking pin through both the pin hole of the “U” shaped base member and the locking pin hole of the trailer bed, and then place a locking mechanism onto the pin and “U” shaped base member. The components of the invention shall be made of a tool-grade steel or a metal of like strength-ness.
    Type: Grant
    Filed: August 20, 2008
    Date of Patent: December 15, 2009
    Inventor: Jorge Sosa
  • Patent number: 7562546
    Abstract: The present invention is a locking system comprising a cylindrical padlock, a lock securing member attached to the cylindrical padlock, a padlock guard, a hasp plate, and at least one of the following: an outer flange on the padlock guard mounted parallel to the hasp plate or an outer flange on the hasp plate mounted perpendicular to the hasp plate. The locking system allows the user to securely store the lock when it is not in use.
    Type: Grant
    Filed: June 15, 2007
    Date of Patent: July 21, 2009
    Assignee: JDM Venture LLC
    Inventor: William Taylor
  • Publication number: 20080314095
    Abstract: A multiple function lock comprising a body, an engaging element having a first end and a second end, a locking mechanism for securing the first end and the second end of the engaging element to the body, and a gate mechanism for selectively concealing or revealing a passage in the body through which the second end may move to unlock the lock. In certain embodiments, a multiple function lock may comprise a body, a U-shaped shackle having toe and heel portions, the heel portion rotatably secured within the body, a locking mechanism for locking the heel and the toe portions within the body, a passage through the body adjacent to the toe portion, the toe portion adapted to move through the passage to unlock the lock, and either a retaining cup, an adjustable gate, or an outer housing, each being adapted to selectively block or reveal the passage.
    Type: Application
    Filed: August 27, 2008
    Publication date: December 25, 2008
    Applicant: Stanton Concepts Inc.
    Inventors: Robert Loughlin, John Loughlin
  • Patent number: 7418846
    Abstract: A lock box with a locking mechanism using a puck lock is provided that also has a handle for moving a locking bar from a locking to an unlocking position. Furthermore, the puck lock is permanently attached to the exterior of the lock box eliminating the possibility of losing the puck lock. The construction of the puck lock makes tampering with the locking system of the lock box impractical.
    Type: Grant
    Filed: June 30, 2006
    Date of Patent: September 2, 2008
    Assignee: Greenlee Textron Inc.
    Inventors: Derrick L. James, John W. Kroening
  • Publication number: 20080105005
    Abstract: A hidden shackle style lock is disclosed. The lock includes a substantially cylindrical housing having a top surface, a bottom surface, and a curved side surface. The lock also includes a first cavity on the bottom surface of the housing extending part way along a thickness of the housing, and a second cavity on the side surface intersecting with the first cavity. A hollow sleeve is slidably attached within the second cavity. The sleeve includes a first end face, a second end face, and a third cavity. The third cavity extends from the first end face to the second face and is substantially coaxial with the second cavity. A shackle having a first end and a second end is fixedly coupled to the first end face of the sleeve. The lock also includes an interchangeable core having a first locking mechanism and a second locking mechanism lockingly disposed within the third cavity, and coupled to the straight shackle.
    Type: Application
    Filed: October 10, 2007
    Publication date: May 8, 2008
    Inventor: Wei Kai Wang
  • Patent number: 7281400
    Abstract: A padlock for motorcycle brake disks having a body with a neck whose width is adjusted to the thickness of a motorcycle brake disk, and a latch which can pass through one of the conventional orifices of this brake disk. The latch operates between a retracted position within the body and an extended position in which it penetrates with its tip into a locking mechanism formed inside the body itself. Once the padlock has been positioned on the disk brake, the body prevents turning of the wheel because it abuts against the motorcycle chassis.
    Type: Grant
    Filed: November 10, 2005
    Date of Patent: October 16, 2007
    Assignee: Luma Industries, S.A.
    Inventor: Alfredo Muerza
  • Patent number: 7210316
    Abstract: A lock assembly for a hinged door has a pair of hasps that align with each other, each having a hole. A housing with an open back fits over the hasps. A retainer pin extends through an aperture in the housing and through the aligned holes of the hasps. The retainer pin has a pair of axially spaced apart shoulders. A key actuated lock member has a lock pin that extends perpendicular to the retainer pin and between the shoulders in an engaged position.
    Type: Grant
    Filed: February 14, 2006
    Date of Patent: May 1, 2007
    Assignee: Blaylock Industries, Inc.
    Inventors: Robert P. Falconer, Jewel B. Smith
  • Patent number: 7047774
    Abstract: A security device is provided with a housing, which may be installed on a roll-up door of a cargo container, tractor-trailer, or storage facility. The security device includes a removable locking pin structure having a locking pin structure is manually removable through a housing chamber for a puck lock. The housing includes a tab with an opening for receiving the locking rod of a puck shaped lock and the locking pin structure has a window through which the locking rod extends in a locking condition of the lock. Structures are provided for storing the locking pin structure when the security device is unlocked.
    Type: Grant
    Filed: March 23, 2005
    Date of Patent: May 23, 2006
    Inventor: Roy E. Gogel
  • Patent number: 7000955
    Abstract: A compact, portable device for effectively locking a crank window in a user selected position. The body of the device can be selectively secured to or released from a window crank. When secured to the window crank, the device limits rotation of the crank by mechanical interference.
    Type: Grant
    Filed: December 22, 2003
    Date of Patent: February 21, 2006
    Inventor: Roger Heyder
  • Patent number: 6915670
    Abstract: A security device is provided which may be installed on a roll-up door of a cargo container garage or storage facility. The security device includes a locking bar having a locking pin, which is shiftable into a locking pin receiving aperture in a side wall of the roll-up doorframe. The locking bar also includes a tab with an opening for receiving the locking rod of a puck shaped lock when the locking bar is in the locking position.
    Type: Grant
    Filed: October 28, 2004
    Date of Patent: July 12, 2005
    Inventor: Roy E. Gogel
  • Patent number: 6823701
    Abstract: A door latching device is disclosed that is mountable to conventional doors, including cargo container doors and garage doors, for preventing opening thereof. A conventional keyed lock, such as a padlock or puck-shaped protected shackle lock, couples with the latching device to lock the latching device in a latched position with a door. The latching device includes a rigid housing having an attachment bolt affixed thereto for securing the latching device to the door, a slidable locking pin having an opening for receiving a locking pin ingress/egress. In a locked position, the locking pin protrudes from the housing, and the lock is coupled with the locking pin to prevent movement of the same. In an unlocked position, the lock is uncoupled from the locking pin to permit sliding of the locking pin. The housing provides limited access to the lock once the lock is coupled with the locking pin.
    Type: Grant
    Filed: August 29, 2003
    Date of Patent: November 30, 2004
    Inventor: Roy E. Gogel
  • Publication number: 20040083777
    Abstract: A lock assembly adapted to engage a closure eye. A piston is slideably positioned in the housing for movement between a first piston position, in which the piston is substantially positioned inside the housing, and a second piston position, in which a portion of the piston extends from the housing. A bolt is moveable from a first bolt position into a second bolt position. When the bolt is substantially in the second bolt position and the piston is moved into the first piston position, the bolt moves into a third bolt position, in which the bolt is substantially within the housing. The bolt is adapted to be positioned within the closure eye at least while in the third bolt position.
    Type: Application
    Filed: November 2, 2002
    Publication date: May 6, 2004
    Inventor: Robert A. Vito
  • Patent number: 6684670
    Abstract: A security device comprises a first component having a through first passageway surrounded by an internal first recess, and a second component having a second passageway surrounded by an internal second recess. The first and second components are configured for assembly in a mating relationship with the first and second passageways in communication with each other and in coaxial alignment. A lock has a barrel containing a spring and plunger and carrying radially shiftable locking elements, with the plunger being normally biased by the spring in one direction urging the locking elements into expanded positions protruding radially from the barrel. The barrel is insertable into and releasably retained in an unlocked position in the first passageway with the locking elements expanded radially outwardly into the first recess, and is shiftable by a forwardly applied axial force into a locked position in the second passageway with the locking elements expanded into the second recess.
    Type: Grant
    Filed: August 7, 2002
    Date of Patent: February 3, 2004
    Assignee: Inner-Tite Corp.
    Inventors: Anthony J. Agbay, John Mahaney
  • Patent number: 6349029
    Abstract: The present invention provides for an apparatus and method for securing a computer component in a computer system. Some embodiments include single or multiple panels hinged to a chassis of the computer system. A panel of some embodiments may carry or otherwise secure components of the computer system. One such component that may be carried by a panel is a computer power supply.
    Type: Grant
    Filed: October 20, 1999
    Date of Patent: February 19, 2002
    Assignee: MicronPC, LLC
    Inventors: Michael V. Leman, Gregory P. Johnson, Jacques Gagne, Philip Hartley, Ray Gradwohl
  • Patent number: 6305199
    Abstract: A security device for securing portable equipment having a security slot in the chassis of the equipment, comprising an attachment having a slot-mating head and an axially movable head locking member which is inserted into the slot after the head to prevent rotation and removal of the head from the slot.
    Type: Grant
    Filed: August 17, 2000
    Date of Patent: October 23, 2001
    Inventor: Darrell A. Igelmund
  • Patent number: 5946952
    Abstract: A door locking assembly is provided including a base having a pair of halves. A first one of the halves is adapted for being mounted to a door and a second one of the halves for being mounted on a door frame. The halves each include a slot formed therein. A sliding bar is included having a first orientation in engagement with both slots of the base for precluding the door from being opened and a second orientation with only one of the slots of the base receiving the sliding bar for allowing the door to be opened. Next provided is a cover removably mounted over the sliding bar for precluding the same from being removed from the first orientation. For precluding the removal of the cover, a locking mechanism is included which is adapted to engage both the cover and the sliding bar.
    Type: Grant
    Filed: November 25, 1998
    Date of Patent: September 7, 1999
    Inventor: Jouri Mintchenko
  • Patent number: 5515947
    Abstract: A motorcycle disk brake lock comprises a main body, a lock bolt and a locking member. The main body has a base portion, a first arm, a second arm, and an insertion slot formed between the first arm and the second arm for receiving therein a motorcycle disk brake. The lock bolt is disposed on the first arm such that the lock bolt can be moved back and forth in a direction parallel to an open end of the insertion slot. The lock bolt has a retaining portion corresponding in location to the open end of the insertion slot. The lock bolt is provided along the edge thereof with at least one first locating portion. The locking member has a second locating portion capable of moving in a direction perpendicular to the moving direction of the lock bolt to engage the first locating portion. The distance between the retaining portion and the insertion slot of the main body can be adjusted so as to disable the motorcycle disk brakes of various outer diameters.
    Type: Grant
    Filed: January 4, 1995
    Date of Patent: May 14, 1996
    Inventor: Jin-Ren Shieh
  • Patent number: 5345794
    Abstract: A shackleless padlock system is provided which includes a lock mechanism having a cylindrical body both protruding from one end thereof with a key-operating locking pin which retractably protrudes from the lock mechanism from a first to a second position for selectively engaging portions of a padlock body in order to either provide bolt engagement with the pad-lock body or for guiding a lock mechanism within the padlock body. Access to the locking pin in order that the lock mechanism may easily be removed and replaced with a different lock mechanism.
    Type: Grant
    Filed: August 17, 1993
    Date of Patent: September 13, 1994
    Inventor: Bruce Jenks
  • Patent number: 5127244
    Abstract: An improved shackleless padlock which engages and secures a conventional hasp configuration by use of a pop-out lock mechanism which has a non-rotating cylindrically extending lock bolt that engages the hasp staple. The pop-out lock mechanism is created by use of a spring to bias the lock mechanism outwardly from the padlock body when the lock contained within the lock shell is in a locked position, the lock mechanism is pushed inwardly into the padlock body until it latches into a fixed position and the lock bolt consequently engages the hasp staple. Strength is added to the die cast metal alloy construction of the padlock body by use of vertical and horizontal hardened, force-fit pins embedded in the padlock body. Also, a material saving well is formed in the top face of the padlock body which may also be utilized for displaying a nameplate.
    Type: Grant
    Filed: August 19, 1991
    Date of Patent: July 7, 1992
    Assignee: K.X.L. Manufacturing, Inc.
    Inventor: Gary L. Myers
  • Patent number: 5010745
    Abstract: A high security post lock according to the invention includes a hardened shell having a head member at one end thereof and an eccentric locking cam rotatably mounted at the other end. The lock is adapted to be inserted through an opening passing through a door frame and a door to secure the door. In a first or open position, the circumference of the cam is coextensive with the circumference of the shell, so that the lock can be inserted into and withdrawn from the door. In a second or locked position, the locking cam projects outwardly from the shell to prevent withdrawal of the lock and thus secure the door. Movement of the cam is limited by a pin and groove arrangement.
    Type: Grant
    Filed: August 2, 1989
    Date of Patent: April 30, 1991
    Assignee: Medeco Security Locks, Inc.
    Inventors: Charles E. Hall, Stevie C. Roop
  • Patent number: 4953371
    Abstract: An improved padlock having a main, generally rectangular case with walls that enclose a locking mechanism, and including a top wall with at least one shaft-receiving bore, and the case having side wall portions that extend upwardly beyond the case top wall and surround the at least one bore, and the top wall having a portion that is shaped for grasping. A latching head is disposed above the main case to which it is connected by at least one shaft extending from the latching head through the at least one bore for lockable engagement with the locking mechanism. The upwardly extending wall portions of the case slidably embrace the outer surface of the latching head to shield the at least one shaft and to guide the latching head in limited vertical movement from a padlock open position, in which a shaped portion of the latching head lower wall is spaced apart from the shaped portion of the case top wall, to a locked position in which these shaped portions are brought together.
    Type: Grant
    Filed: December 11, 1989
    Date of Patent: September 4, 1990
    Inventor: Paul Appelbaum
  • Patent number: 4754626
    Abstract: This lock protector is designed to be received over a padlock strap and staple combination used to lock a door. Primarily, it consists of an elongated block or bar having an opening for receiving the padlock staple, and a larger opening in a face of the block receives a flat cylindrical lock member that also receives the padlock staple and locks the door by the employment of a key to advance the lock member bolt through the staple.
    Type: Grant
    Filed: May 1, 1987
    Date of Patent: July 5, 1988
    Inventor: Myron Siegel
  • Patent number: 4512165
    Abstract: High security lock assembly adapted for locking two flanges together. The lock assembly includes a lock body having flange retaining walls which define a flange receiving opening. A latch bolt is provided which is slidably mounted transverse of the flange receiving opening for locking to the flanges when they are disposed within the flange receiving opening. A removable shield is provided for removably attaching to the lock body for covering the flange receiving opening thereby preventing external access to the latch bolt when the lock assembly is locked to the flanges. The lock assembly further includes a lock cylinder and associated lock cylinder housing wherein the lock cylinder housing cannot be removed from the lock body except upon special key actuated release. An acid actuated relock mechanism is also provided for blocking movement of the latch bolt when acid is applied in attempts to overcome the lock assembly.
    Type: Grant
    Filed: April 1, 1982
    Date of Patent: April 23, 1985
    Assignee: La Gard, Inc.
    Inventor: Tim M. Uyeda
  • Patent number: 4409805
    Abstract: A key operated lock comprises, a lock body; a retractable lock bar with a bevel head, operable by an external pressure, disposed in the body; two locking plates abutted one another in the body and biassed by two separate springs parallelly and opposite to one another, each of the locking plates having an opening adjacent to one another, the openings jointly forming a throughhole for gripping the bevel head to place the lock in its locking position. The throughhole which is in its releasing position is a full circular shape that can allow the bevel head to pass therethrough and is of the shape formed of two dislocated semicircles in its gripping position. The release means for the retractable lock bar includes two cam members which will move, by key operation, the locking plates against the biassing action of the springs to make the throughhole vary to its releasing position so that the lock bar will be released.
    Type: Grant
    Filed: January 28, 1982
    Date of Patent: October 18, 1983
    Inventor: Tzu-Cheng Wang
  • Patent number: 4358941
    Abstract: Disclosed is a security device and method. The device includes a bolt having a first hole drilled radially therein, a second threaded hole drilled axially therein to intersect the first hole, and a third hole formed axially therein connecting the second hole with the end of the bolt. A bar is insertable into the first hole to extend radially outside the bolt thereby to prevent a nut from being removed from the bolt. The bar is secured in the bolt by means of a pick-proof lock that has a screw portion threadably engagable with the second hole to engage the bar, and a lock body configured to fit the third hole.
    Type: Grant
    Filed: October 20, 1980
    Date of Patent: November 16, 1982
    Inventor: John C. Zimmer
  • Patent number: 4229955
    Abstract: The lock for roller shutters comprises a hood-shaped body secured to the roller shutter and presenting a cavity directed downwardly, in such a manner that, when the roller shutter is lowered to its closure condition, the body encloses within its cavity an anchoring ring fastened to the threshold of the door. A straight bolt is mounted axially slidable in the lock body, so as to be capable of engaging the anchoring ring. A cylinder lock mechanism, also housed in the body, ensures the locking of the slidable bolt in its closure position.
    Type: Grant
    Filed: September 28, 1978
    Date of Patent: October 28, 1980
    Assignee: Viro Innocenti S.p.A.
    Inventors: Giorgio V. Coralli, Alessandro Brunelli
  • Patent number: 3996774
    Abstract: A high security lock to secure the eyes of a hasp and keeper. The lock is of a short cylindrical shape with a rear cavity to receive and enclose the hasp and keeper eyes, and contains a locking bolt to engage such eyes.The lock and the hasp and keeper assembly interact to give high security. The lock encloses and closely embraces the eyes of the hasp and keeper and lies close against the pads of the hasp and keeper. Shroud plates overlying the pads closely surround the rear edge of the lock. The shrouds and plates of the hasp meet those of the keeper at a separation plane offset from that of the eyes and of the door and its jamb.
    Type: Grant
    Filed: February 24, 1975
    Date of Patent: December 14, 1976
    Inventor: Walter E. Best
  • Patent number: 3946581
    Abstract: A lock assembly for locking one member, such as a door, to another member, such as the frame, comprises a stud unit and a lock unit which can be locked on the stud by means comprising a slide which is engaged between the stud and a surface in the lock unit, a locking ball which extends through an opening in the slide into either a recess in the stud to prevent separation of the units or a recess in the lock unit, which allows such separation, a catch for holding the slide locked and a key-operated lock for releasing the slide.
    Type: Grant
    Filed: March 11, 1974
    Date of Patent: March 30, 1976
    Inventors: Wilfred Gwyn Weeks, Malcolm Arthur Taylor