Abstract: A locking mechanism for the trunk lid of a motor vehicle has a component which assumes a first position when the trunk lid is closed and locked. The component may or may not project outward from the trunk lid in its first position. The component is capable of assuming a second position when the trunk lid is released. In the second position, the component projects outward from the trunk lid to such an extent that a portion of the component which is recessed in the trunk lid in the first position is now exposed. This portion of the component may be gripped in order to manipulate the trunk lid.

Abstract: A readily portable safe is bracketed to a bracket plate adapted to be secured to a solid surface by relative sliding motion. The safe is in two parts hinged together. A cylinder lock has a bolt which engages in registering holes in lugs on the plate and the two parts of the safe.

Abstract: A key-manipulatable switch for a motor vehicle ignition system having a housing and a cylinder mounted within the housing for rotational and axial movement with respect thereto includes cooperating components which prevent the rotation of the cylinder counterclockwise from a first rotational position to a second rotational position unless the cylinder is in a preselected axial position with respect to the housing while permitting unrestricted clockwise rotation of the cylinder to any of several rotational positions. In one embodiment, the cylinder includes a spring-biased stop member which cooperates with a lug-like projection defined by the housing.

Abstract: The present invention relates to a lock (3) on the inside of a door, wherein the lock can be actuated from outside the door. The lock is connected to a locking device (14) on the outer side of the door by a coupling rod (12). In order to increase protection against burglaries, the coupling rod (12) is to pass through a channel (22) with which a channel closure jaw (28) is associated. The jaw is supported on the coupling rod (12) and is under spring-load in the direction of closure. Removal of the coupling rod during a burglary attempt results in a closure of the channel with protection of the lock from tampering by the jaw.

Abstract: A separable fastener includes a fastener body having a head end and a shank nd. The head end defines a generally cylindrical open ended cavity in which a cylindrical punch is disposed. The cavity is sealed and closed by a gas generator that develops an increasing fluid pressure against the punch. The punch is restrained within the cavity by a retaining ring which yields once a preselected gas pressure is reached. The release of the punch causes it to rapidly accelerate in a short distance to impact the shank end of the fastener body. The shank end is thereby sheared from the body with the void created in the body being sealed by the impacting punch.

Abstract: A key using a synthetic resin bow which is connected to a metal key body having a blade section to which serrations are to be formed for use and an inserting section which is thinner than the blade section; the bow is formed into the thickness within 0.9 to 1.3 times that of the blade section.

Abstract: It is a retractable lock, which mainly comprises a first pipe section with a lock cylinder at one end thereof, and with a spheric opening and a guide groove at the other end thereof, a connecting rod having a ball shaped part at one end thereof and a ball at the other end thereof so as to pivotally connect with a second pipe section having two spheric openings at both ends thereof respectively a locking rod having a ball end to coupled with one end of the second pipe section, and the other end thereof being coupled into the first pipe; when not use, all the parts of the lock can be retracted into the first pipe section for storage and carrying convenience.

Abstract: A key holder includes a body portion, and a depressible plunger element of generally J-shaped configuration in the body portion which is operative for detachably retaining a key in assembled relation with the body portion. In one embodiment of the key holder the plunger element is engageable with a releasable pin element having a key ring thereon for releasably retaining the pin element and the key ring in assembled relation with the body portion. In a second embodiment the plunger element is engageable with a pin element attached to the body portion for retaining an open ring element attached to the pin element in a closed position wherein a key receive on the ring element is retained thereon. The plunger element in the second embodiment is depressible to permit pivoting of the pin and ring elements to an open position wherein a key received on the ring element is removable therefrom.

Abstract: An electrically controlled bolt lock with a control plate which is positively connected to a bolt element there also being a tumbler or the lock is improved by a first pin extending from the control plate for engagement with the tumbler; a second pin is also mounted on the control plate; a spring biased armature lever is pivotably mounted to the tumbler and is operated by the second pin engaging an armature is pivoted on the armature lever cooperating with a stationary electromagnet and the second pin pivoting said armature lever whenever said electromagnet holds the armature on energization of the electromagnet to thereby place said tumbler into a release position.

Abstract: An electronically self-latching cylinder lock comprising a cylinder into which a plug is inserted, a plurality of paired pin tumblers each of which is disposed in one of a plurality of bores formed inside the cylinder and the plug, and a plurality of switches which are controlled by the pin tumblers. The switches are used to actuate an electronic circuit to send out warnings with a buzzer and to secure the plug at its locked position with a latch which is driven with a solenoid, when an incorrect key is inserted into the key way.

Abstract: A combination lock has a pivoting bolt for engaging and disengaging a hasp. The hasp, which is disengaged from the bolt when the lock is on-combination, may be re-engaged with the bolt, even if the lock is off-combination. A first spring resiliently biases the bolt to an unlocked position. A second spring resiliently restrains movement of the bolt beyond a locked position in order to prevent disengagement of the hasp in response to application of a shock force to the lock.

Abstract: A low current drain timer for bank vaults is easily settable to limit opening of the vault to a predetermined time, irrespective of the time of closing the vault. Three thumb wheels having corresponding indicia are set to designate the elapsed time necessary for reopening. A timer is activated by a reset switch and the manual repositioning of a mechanical latch, which latch permits later closure of a vault door. Either of sequentially operating solenoids at the lapsed time permit opening of the vault door. A backup battery power source renders the timer unaffected by failure of a conventional electrical power source.

Abstract: A method for preventing inhalation or ingestion of airborne aerosol particles of toxic or life-threatening materials by medical laboratory personnel wherein a portable safety shield is placed between the body of the laboratory personnel and a container of toxic or life-threatening material prior to opening. The container is opened behind the shield so that any airborne aerosols of the material cannot directly be inhaled or ingested by the laboratory personnel. The safety shield is an upright self-supporting body of a rigid transparent sheet material which comprises a horizontal base, wherein the body is inclined with respect to the base. Notches are provided in the body to facilitate access to the base.

Abstract: To prevent theft of an outdrive unit by removal from a bell housing mounted on the transom of a boat, a padlock holds together a pair of bent bars. The bars are made of a heavy stainless steel. Each bar hooks around an edge of the bell housing, wraps around one side of the bell housing and outdrive unit, and then crosses in front of the outdrive unit. When held together by the padlock, the bars cannot be unhooked from the bell housing and the outdrive cannot be pulled off the mounting studs projecting from the bell housing.

Abstract: A universal lock mount for use with a variety of different types of safe locks. It includes an integral resin structure having a bushing portion and a mounting plate portion. The bushing portion supports lock components, and the mount also includes a retaining cap which is fused to the outer end of the bushing portion to hold the components as an independent assembly. Resin spacing washers minimize wear and provide for smoothness and consistency in the movement of the lock assembly components. Use of the mount permits the lock components to be preassembled, tested and adjusted prior to installation so that the resulting assembly functions as an independent lock element. The universal mount also facilitates security of the safe. Because the assembly is independent of the spindle/driver mechanism used to position its components, removal or destruction of the spindle/driver mechanism does not affect the components supported on the universal mount, and the safe remains locked.

Abstract: An axial split-pin tumbler lock having a rotatable operating element and a fixed element configured to define a shear plane therebetween, and wherein aligned bores extend in the two elements on opposite sides of the shear plane, with specially configured code pins and drive pins slidable in the bores in the elements across the shear plane, the specially configured code and drive pins being so constructed that they will bind or hang up in the respective bores in any number of axial positions during an attempt to pick the lock, thereby giving multiple and differing false readings of an unlocked condition of the lock and rendering it pick resistant.

Abstract: A delay action time lock having a lock housing in which a spring action bolt is movably connected. A retracting cam is provided for engagement with a bolt retracting lever for retracting a locking end of the bolt in the housing by means of a key inserted in a key cylinder and after an electronic timer has initiated a first preset time delay count. A motor actuated support cam is provided for normally supporting the retracting lever in a disengaged position with the retracting cam. After the preset time delay count, the bolt retracting lever is liberated to be engaged by the retracting cam. After a second preset time delay or upon the actuation of a microwswitch by the retracting lever, the motor actuated support cam is placed to support the retracting lever at its disengaged position so that as soon as the key cylinder is turned back to its initial position, the lock bolt is disengaged.

Abstract: A padlock protector for use with a padlock in securing both a dead bolt door lock and a hasp and staple latch comprising a thin-walled steel container sized to receive and contain a padlock including a first slot in a side wall of the container sized to receive the staple of a conventional hasp, surrounding the slot is a spacer bracket on the inside of the container for limiting the staple opening depth which receives the padlock shackle and a second slot located at a radius corner of two side walls, sized to receive a dead bolt lock with a lateral shackle engaging hole therein which is engageable by the padlock shackle from within the container.

Abstract: A lock box having a housing and a lid mounted to said housing. The housing has a ridge mounted about its inner periphery adjacent its open side. A retainer on the lid which is complementary to the ridge is mounted over the ridge to retain the lid in its mounted position. A spring biased pin is mounted to the lid and extends between a retracted position where the lid can be removed from the housing and an extended position where the lid is locked to the housing. A lock controls the position of the pin as it moves between the retracted and extended positions.

Abstract: A key-activated removeable cylinder lock is disclosed. The lock has a lock barrel including a plurality of combinating tumblers disposed therein for movement between a first resting position and a second activated position. The barrel further includes a control tumbler having a first end and a second opposite end. The control tumbler is slidably disposed between a first resting position and a second activated position. In the resting position, the first end is extended relative to the barrel. In the activated position, the first end is retracted relative to the barrel. A housing rotatably removably receives the barrel therein. The housing further has an internal longitudinal slot formed therein extending from a forward end thereof. An annular clearance space is located rearwardly of the slot and is in communicaiton therewith for accommodating extension of the first end of the control tumbler in the resting position, whereby rotational movement of the barrel in the housing is permitted.