Robert H Steinbach, 835705 Code Ave, Minneapolis, MN 55436

4446709, May 8, 1984

Jul 14, 1981

6/283226

Robert L. Steinbach - Glendale Heights IL

Chicago Lock Co. - Chicago IL

E05B 1714
E05B 2708

70363

A cylinder lock mechanism includes a tubular barrel, a lock cylinder rotatable in the barrel, tumblers longitudinally and reciprocally movable within the cylinder, a cap on a front end of the barrel and having a key opening therethrough, a facing member interposed between the cap and the cylinder and having an opening registering with the cap opening, a spacer interposed between the facing member and the cylinder and having an opening registering with the cap opening, such openings when in registry receiving a key for insertion thereof into engagement with the tumblers, an engagement member extending transversely of the cylinder for engagement with the tumblers and laterally movable to and from the tumblers, a locking member extending longitudinally of the cylinder for engagement with the engagement member and laterally movable to and from the tumblers, structure on the cylinder and the barrel respectively for engaging the locking member therealong for locking purposes, structure on the tumblers for engaging the engagement member to support the locking member in a projecting position with respect to the cylinder for locking purposes, and structure on the tumblers permitting the engagement member to move towards the tumblers, thereby to permit retraction of the locking member from the projecting position for unlocking purposes, the engagement member and the locking member being free-floating in the lock mechanism with respect to the cylinder and to the barrel.

D330501, Oct 27, 1992

Nov 27, 1991

7/799648

Robert L. Steinbach - Glendale Heights IL

Chicago Lock Company - Chicago IL

D 8347

4735069, Apr 5, 1988

Dec 24, 1984

6/685595

Robert L. Steinbach - Glendale Heights IL

Chicago Lock Co. - Chicago IL

E05B 1906
E05B 2708

70363

A key is an assembly of a thermoplastic handle and a blade, which are formed separately from each other. The blade is substantially flat, and includes on each of its opposite sides a plurality of parallel longitudinal lands having forwardly-facing bittings thereon, and a plurality of parallel longitudinal grooves which alternate with the lands and space them apart. The bittings serve to engage transverse rows of axially reciprocatable tumblers in a cylinder lock, and the grooves receive lock wards therein, while the distal end of the blade engages the lock to determine the depth of insertion of the key blade. The blade also is provided with a capture pin opening, and with a proximal end structure which cooperates with the handle in assembling the key. The blade is made from a length of bar stock which is rolled in order to form lands and grooves on the sides of a flat strip. The lands preferably project laterally outwardly for different distances, to provide increased security and to increase the number of possible key changes.

4078405, Mar 14, 1978

Dec 2, 1976

5/747076

Robert L. Steinbach - Chicago IL

Chicago Lock Co. - Chicago IL

E05B 2708

70363

Alarm switch mechanism for an axial split-pin tumbler-type lock includes an electrical contact member disposed in the lock cylinder in the movement paths of lock tumbler elements and adapted for making an electrical contact with an element of any of the tumblers which is moved rearwardly or inwardly a predetermined distance, beyond the distance required for lock-opening purposes, means electrically insulating the contact member from the lock mechanism when no tumbler is in the latter position, and means adapted for making electrical connections to the tumbler elements and the contact member, respectively, whereby they may be connected in an alarm signal circuit closed by making said contact.

4835998, Jun 6, 1989

May 23, 1988

7/197347

Robert Steinbach - Glendale Heights IL

Chicago Lock Company - Chicago IL

E05B 1310

70208

There is disclosed an improved handle assembly which relates to a pop-out T-handle lock assembly of the type having a cylinder front handle which mates with a cylinder housing, which in turn houses a cylinder lock and related extension rod therein. The improved handle assembly is formed by providing an inner handle secured to the cylinder housing at the front end thereof, the inner handle having a pair of opposed attachment flanges extending outwardly therefrom. Each of the attachment flanges includes a screw receiving channel formed along the inner surface thereof, and the cylinder front handle is provided with a pair of opposed threaded apertures in spaced apart relation traversing side walls thereof and positioned to be in registry with the screw channels formed in the inner handle when the cylinder front handle is mounted to the inner handle. A pair of threaded screws are provided for removably engaging the cylinder front handle to the inner handle, the threaded screws being received through the threaded apertures and through the screw receiving channels formed in the inner handle. The assembly permits the easy removal of the cylinder front handle to gain access to the inner handle and the related cylinder housing and associated lock and extension rod.

4617813, Oct 21, 1986

Jul 29, 1982

6/403094

Walter S. Christopher - Park Ridge IL
Robert T. Kriskovich - Roselle IL
Robert L. Steinbach - Glendale Heights IL

Chicago Lock Co. - Chicago IL

E05B 1920

70394

A picking tool adapted to open a cylinder lock of the axial pin tumbler type having its tumblers arranged in a coplanar configuration, includes a planar torquing core insertable into the lock keyway in a longitudinal direction, a plurality of longitudinal guideway channels formed on opposing faces of the core, and respective tumbler probes longitudinally reciprocable in the channels. A holder, which acts as a handle for manipulating the picking tool, also serves as a housing surrounding the core and the probes. The holder is formed with a pair of radial openings in opposite sides thereof which receive respective brake segments for exerting a frictional drag on the probes. An adjustable hoop clamp surrounds the brake segments for manually adjusting the frictional drag, so that the proper tumbler displacement action can be achieved. Setscrews are threaded into the body of the holder for clamping the probes in their final tumbler-displacing positions. At the rear of the holder, the tail ends of the probes fan out circularly so that they can be more easily manipulated individually.

4821539, Apr 18, 1989

May 26, 1988

7/199149

Robert Steinbach - Glendale Heights IL

Chicago Lock Company - Chicago IL

E05B 6738

70 68

An improved keeper lock for a zipper-type slide fastener. The lock includes a barrel assembly of a tubular barrel and an anvil fixed to and projecting readily from the barrel, the anvil adapted to receive the slide fastener when the fastener is moved to its closed position. A key operated lock assembly is telescopically and rotatably received in the barrel for limited axial sliding movement. A keeper arm is fixed to and projects radially from the lock assembly adjacent to a proximal end of it and the lock assembly and keeper arm are capable of both angular rotation and axial movement so that it may assume a fully telescoped locked position with the keeper arm closely overlying the anvil for confining the slide fastener between the keeper arm and the anvil. It may also assume an unlocked position wherein the keeper arm overlies the anvil and is spaced apart therefrom. The improvement includes means to align the keeper arm over the anvil when the keeper arm is in a partially telescoped and unlocked position such that it may assume a fully telescoped locked position with the keeper arm closely overlying the anvil by applying an axial force to the keeper arm.

4249402, Feb 10, 1981

May 7, 1979

6/036523

Robert L. Steinbach - Glendale Heights IL

Chicago Lock Co. - Chicago IL

E05B 6738

70 68

A single key-operated keeper lock for a zipper-type slide fastener includes a barrel assembly of a tubular barrel and an anvil fixed to and projecting radially from the barrel, a plug assembly of a lock cylinder rotatably received in the barrel and a keeper arm fixed to and projecting radially from the cylinder adjacent to a proximal end thereof, the plug assembly being rotatable relative to the barrel assembly between alternate positions for alternately securing a fastener element between the keeper arm and the anvil, and releasing the element, tumblers carried by the cylinder, movable into engagement with the barrel to prevent the relative rotation, and movable out of such engagement by insertion of a key in the cylinder in the direction of the axis of rotation, a locking bar reciprocally movable in the barrel rectilinearly along such axis between a base portion of the barrel and a distal end portion of the cylinder, the base portion defining a recess receiving the locking bar in each of the several positions of the locking bar along the axis to prevent relative rotation between the barrel and the locking bar, the distal end portion of the cylinder having a pair of flanges defining between them a recess receiving the locking bar to prevent relative rotation between the cylinder and the locking bar and thereby also between the plug assembly and the barrel assembly, a spring resiliently biasing the locking bar into the recess in the distal end portion, and a stem on the locking bar and received in the distal end portion of the cylinder for engagement by the key being inserted to move the locking bar out of the latter recess, thereby to free the plug assembly for rotation relative to the barrel assembly.