Abstract: A safety installation for locking and unlocking motor vehicle doors which includes an actuating knob arranged on the door inner side; the actuating knob is thereby constructed as sliding knob arranged on the top side of the windowsill.

Abstract: A door handle mechanism including a handle and a mounting plate, comprising a housing secured against rotation relatively to the mounting plate, the housing containing a torsion spring, engaged between the housing and part of the handle extending within the housing, and a stop plate secured on the handle part co-operable with the housing to limit handle rotation and the stop plate serving also to enclose the spring within the housing.

Abstract: A knob for the cover of a pan or similar container which is used for waterless cooking. The knob is installed in an opening formed in the pan cover. A vent passage extends from the pan cover opening to an outlet in the lower peripheral portion of the knob. A disc is provided for closing the vent passage and a slidable tubular housing is provided with lifting surfaces to lift the disc and open the vent passage. The knob can be partially disassembled for cleaning by rotation of the outer tubular housing.

Abstract: An anti-theft door lock comprised generally of two sections, an outer spring loaded section and an inner section connected to the door locking mechanism in which the outer section is pushed downwardly exposing the inner section which can then be manipulated like a conventional door lock to either lock or unlock the car door.The anti-theft device is used as a replacement unit for the one originally supplied with the vehicle. It can be placed in the door sill without the need of any tools and is designed to be screwed onto the existing locking rod which actuates the door lock. Because of the inherent design features, the door lock cannot be actuated by the use of wire type devices, such as coat hangers by would-be car thieves.

Abstract: A stopper device for being mountable upon a door knob, and which serves as a bumper for limiting the pivotal travel of the door, thereby preventing a hard door knob bumping against a wall and damaging the same, the stopper device being made of a resilient material, such as either acrylic, plastic or rubber, which absorbs the shock upon impact with the wall, in order to not injure the same, the stopper consisting of a sheath that encloses the door knob.

Abstract: A car door lock control having a sliding protective sleeve that covers the door lock button when it is depressed in the locked position. The sliding sleeve is spring loaded so that it may be pushed down around the button allowing the button to be pulled up to the unlocked position.

Abstract: A doorlatch knob assembly has a knob insert of a hollow knob projecting through a door mounted rose secured rotatable by a drive washer which, in turn, receives the outer end of a doorlatch connected spindle projecting outwardly through the drive washer drivingly engaged therewith, through the insert and into the hollow knob. A fire resistant shield is closely telescoped and engaged with the insert receiving the spindle outer end therein so as to close off the previous opening from the hollow knob inwardly and preserve the integrity of the spindle retainment of the doorlatch mechanism against flame penetration upon heat destruction of the knob. The shield may have formation engaging the spindle outer end to aid the drive washer for rotatably driving the spindle. Where a turnbutton shaft is involved, it will also be formed of fire resistant material and will be closely telescoped by the outer end of the shield, otherwise the outer end of the shield will be closed.

Abstract: Actuator for automotive door lock consisting of a main body having a smooth cylindrical surface adapted to fit in a door sill opening and a threaded bore extending inwardly from one end for attachment to a threaded lock rod.

Abstract: A hood-like device detachably attached to the window ledge of the door inside the car which conceals the locking handle protruding through the window ledge and prevents unintended unlocking of the car door.

Abstract: A collar of suitable material, such as rubber, plastic, wood, metal, or the like, placed in surrounding association with a locking handle of an automobile door, of the type which extend vertically upwardly from the inside of the window sill of the door and which has an enlargement or knob at its upper end, the collar serving to convert such handle, when it is in "locked-door" position, to one having a side wall configuration of substantially uniform diameter throughout its height, such collar having an inside diameter smaller than the diameter of the enlarged head or end knob of such handle, but sufficiently large to slidably accommodate the shank of such handle and having an upper annular surface shaped to conform to the underside of the enlarged head of such handle.

Abstract: A knob is used on an adjustment member rotatable about an axis and having a periphery formed with a plurality of radially outwardly open recesses. This member may be the adjustment member of a motor-vehicle seat-angle adjuster. The knob comprises an annular collar closely surrounding the periphery of the adjustment member, a plurality of entrainment formations projecting inwardly from the collar into every other recess, and a plurality of hooks each engaging axially through the remaining recesses with the member. The hooks and the formations together transmit angular force between the member and the knob which is made of synthetic-resin material as one integral piece.

Abstract: A device for securing the latch buttons of automobile door locks against tampering from the outside of the vehicle comprises a sleeve engaged upon the shaft of the latch button with a depression, or counterbore, in the upper surface of the sleeve for receiving the lower face of the button proper in the closed - pushed-down - position. The sleeve is preferably made of a plastic or metal material and may be provided with a roughened or knurled outer surface to ease lifting the latch button into the open position. A locking tab may depend from the sleeve and be engaged in a separate lock attached to the inner face of the automobile door.

Abstract: A rotatable knob assembly having a knob easily mounted to the mounting section of an operating member, with the mounting section having two adjacent parts with a first part having a generally elliptical cross section and the other part having a generally circular cross section and with the knob having an open-ended cavity and an upstanding ridge on the inner surface of the cavity surrounding the wall which is of generally the same perimetrical length as the generally equal perimetrical lengths of the two parts of the mounting section. The knob is formed of a material which is capable of being distorted whereby placement of the knob on the mounting section by relative insertion of the mounting section into the cavity causes distortion of the locking ring to pass over the generally elliptical cross section part and the locking ring then returns to its normal shape to engage against the generally circular part of the mounting section and to lock behind the elliptical section.

Abstract: Lock arrangement for a door, particularly a motor vehicle door of the type including a lock mechanism mounted in the door and having a latch member which cooperates with a lock member fastened to a door column of the vehicle, a safety device, including a pivotal lever, associated with the lock mechanism, and an actuator for the safety device which is releasably connected at its end facing the lock mechanism with a region of the pivotal lever which is oriented at least approximately in the installation direction of the lock mechanism. The end of the actuator for the safety device is supported in the installation direction of the lock mechanism and the releasable connection between the actuator and the pivotal lever is a plug-in connection.

Abstract: A door lock for use on a door panel has bores containing a lock mechanism including a chassis on which spindles are mounted for rotation about two parallel axes. Door handles or other lock operators are disposed on opposite ends of both spindles and are interconnected variously to operate a lock bolt and a latch bolt. The lock and latch bolts are also disposed in the bores and are joined to the chassis. One of the handles is joined to one of the spindles by a clutch including an axially movable member operated by an electromagnet within the bores, the electromagnet being connected to the clutch member by an actuator movable in a path having an axial component.

Abstract: A fire-safe lever handle is for use with a lock having a bolt retractable by rotation of a spindle about an axis. The lever handle has a center of gravity off of said axis and has a hub surrounding the spindle. Disposed between the hub and the spindle is a body of meltable or fusible material, such as lead. Under ordinary temperatures the fusible material is solid and connects the spindle and hub for rotation together about the axis. Under fire conditions, the fusible or meltable material melts and disconnects the hub from the spindle so that a fire fighting water jet impinging against the lever handle cannot rotate the spindle and retract the bolt. A drain in the hub releases the melted material from the interior of the hub and permits the hub freely to rest on the spindle at a downwardly inclined angle. This assures that the melted material does not resolidify and reconnect the hub and spindle.

Abstract: A door knob is machined from solid stock to provide a tubular neck, an intermediate portion which is internally recessed to reduce its wall thickness, and a solid-section end portion having a large axial end opening which provides tool access for recessing the mid-portion and clears the pin tumbler lobe of a key-removable core mounted in the knob sleeve with its key plug concentric with the knob. The end opening has an axially-outward facing shoulder and an adjacent radially-inward opening groove. A knob locating, bevelled-edge ring lies against the shoulder with its edge partially closing the mouth of the groove. An end face member having a peripheral bevelled skirt is pressed into the end opening and against the edge of the ring so as to deform the skirt outward into the groove and thereby secure both the end face member and the ring in the knob. The end face member may have an opening for a core mounted in the knob sleeve, or for other usual knob accessories, or may completely close the end of the knob.

Abstract: Manufacture of latch or lock set by cutting, from an extrusion of indefinite length, a portion sufficient to constitute a door lever; creating a rectangular-section barrel at one end of said portion, said barrel having a right-cylindrical recess therein; placing a square-section hollow insert in said recess, said insert having laterally directed tongues; assembling said door with a back plate so that the barrel extends through the back plate; connecting a lever-biasing spring both to the barrel and to the back plate; and securing the lever to the back plate by means of a combined D-plate and locking washer which has an aperture therein which is complementary to the barrel section, said D-plate locking washer also having lugs angled to permit them to slide along the barrel in one direction and to cause them to dig into the barrel to prevent movement in the opposite direction along the barrel.

Abstract: A door opening device for use by handicapped persons for whom it is physically difficult or impossible to turn a conventional door knob. The device comprises, in one embodiment, an attachment hanging from a standard round door knob. Other embodiments included lever devices of different configurations also attached to a knob or the shank of a knob to facilitate turning thereof. This device enables a handicapped person to move the lever in either direction with an elbow, hand or other part of the body in order to open a door.

Abstract: A thumbturn assembly for use with a door lock has a rose body having a face wall and adapted to be secured to a door panel. The rose body has a central hub concentric with an axis and has a bearing ring merging with the face wall and the hub and projecting from the face wall. A thumbturn has individual side walls connected by end walls and a front wall. A pair of semi-cylindrical journal walls extend from the side walls through the hub symmetrically with the axis. The journal walls merge with thrust walls merging with the side walls and facing the bearing ring. The ends of the journal walls extend through openings in the end wall of a cap having a drum wall concentric with the axis. The ends of the journal walls are bent to provide lugs urging the cap toward the hub and urging the thrust walls toward the bearing ring. The cap end wall also has an opening for a driver bar.

Abstract: A device which protects the knob of a door lock to prevent the breaking thereof and entry includes an outer cylindrical member rotatably secured about the knob assembly by the rose of the knob assembly. An inner cylindrical member is secured about the knob assembly, and includes a plurality of axially extending grooves which engage cooperating ribs extending inwardly from the outer member. The inner member includes a hole in one end thereof to permit key access to the knob, and at least one annular friction ring disposed within the inner member for transmitting a limited magnitude of torque to the knob. The device protects the knob assembly by preventing tampering therewith and also preventing breaking the lock by applying high torque to the knob.

Abstract: A hollow knob is provided for use on control shafts and the like. The knob comprises two hollow sections of plastic material and a metal insert threaded for receipt of a control rod or the like. The two hollow knob sections are provided with reinforcing ribs running at right angles to one another, and readily secured at crossover points by means of sonic welding. The metal insert is held securely in place in a well in one of the two plastic portions, being firmly trapped in place, and reinforcing the plastic sections.

Abstract: A vehicle door push button protector to prevent thieves or children from moving a locked push button to unlocked position.The protector comprises a pair of telescoping sleeves, the outer sleeve being securable to the door trim. The sleeves are relatively movable in an axial direction and include selectively interengagable members which permit the inner sleeve to be pulled from within the outer sleeve to a position preventing access to the door push button.

Abstract: A handle comprising a main body, a mounting seat formed integrally with the main body and disposed on the top thereof, and an adhesive tape coated with a bonding agent on both the upper surface and the underside. The mounting seat is soft and has a concave surface, so that the handle can be readily and positively affixed to the outer periphery of an existing doorknob by forcing the mounting seat thereagainst and clamping the same thereto after the adhesive tape is adhesively attached to the concave surface the mounting seat. The main body is flat in shape and has a rear edge which is inclined such that the main body is spaced apart a greater distance from the door in going downwardly from the top. A protuberance may be formed at the lowermost end of the inclined rear edge of the main body to form a finger holder.

Abstract: A heavy duty cylindrical lock set adaptable for various "functions" and having improved features, especially to permit a key-removable lock core to be reversible in its knob mounting to suit right- and left-hand doors. A knob sleeve of large diameter is slotted and shaped at its knob receiving end to form two diametrically-opposed channel sections of high strength and rigidity. The inward edges of the four channel side legs form a mounting seat to receive the key-plug-containing body of the core on the axis of the knob, while the two spaces between the channel sections permit the pin-tumbler lobe or section of the core to extend radially in either of two orientations about the axis of the knob. Two of the channel side edges are notched to engage a key-controlled retaining lug of the core. The knob has a large bore in its outer end and is supported from the knob sleeve by a drive ring which accomodates the core in both orientations. A face plate is held in the knob bore by the core and closes the knob bore.