Auxiliary Knob Slip Covers, Guards, Etc. Patents (Class 292/DIG2)
  • Patent number: 6154928
    Abstract: A device facilitating operation of a doorknob, comprising a tubular body member having a continuous wall with an outer gripping surface and an inner surface defining bore adapted for receiving the doorknob. A plurality of resiliently deformable projections extend inwardly from the inner surface of the wall. A distance between opposing projections before installation of the device on the doorknob is smaller than a cross dimension of the knob. Each projection has a pair of spaced end portions formed integrally with the inner surface of the wall. The outer gripping surface of the continuous wall includes a generally curved section between each pair of spaced end portions before the device is installed on the knob. Deformation of the projections upon installation of the device on the knob causes the spaced end portions of each projection to spread apart and embrace an outer periphery of the doorknob.
    Type: Grant
    Filed: December 30, 1998
    Date of Patent: December 5, 2000
    Assignee: Bel-Art Products, Inc.
    Inventor: Paul Thom
  • Patent number: 6139076
    Abstract: An unlock mechanism for a foldable rear seat back which prevents damage to an unlocked state indicator and a front seat. A warning bezel (24) is slidingly fit in a fixed bezel (22) which is fixed to an upper surface (10A) of a rear seat back (10). A first link (32) engages with the warning bezel (24). The first link (32) is connected to a bell crank (38). The bell crank (38) is urged upward by a spring (46). A pin (54), which is provided upright at a latch (16), is movably inserted into a slot (52) which is formed in an open link (50) which is engaged with the bell crank (38). Accordingly, in an unlocked state, when the warning bezel (24) is pressed into the fixed bezel (22), the first link (32) moves downward against urging force of a spring (46), and the warning bezel (24) is accommodated in the fixed bezel (22).
    Type: Grant
    Filed: October 27, 1997
    Date of Patent: October 31, 2000
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Takeshi Hara, Yasuo Oyama
  • Patent number: 6131965
    Abstract: A door locking system for child-safety door locking systems on an automobile door including a latch and a door lock mechanism. The door handle is incapable of unlatching the door when the locking mechanism locks the latch. The locking system includes a door panel having an opening for receiving a lock button mounted on a lock rod connected to the locking mechanism and movable between locked and unlocked positions. A shield is movable within the opening relative to the lock button and door panel between a retracted inoperative position corresponding to a normal lock mode in which the shield is recessed in the opening for accessing the lock button for moving the lock button between its locked and unlocked positions, and an extended operative position corresponding to a guard lock mode in which the shield extends outward of the opening to shield the lock button in its locked position to prevent access to the lock button for manual movement to its unlocked position.
    Type: Grant
    Filed: April 12, 1999
    Date of Patent: October 17, 2000
    Inventor: Earl M. Trammell, Jr.
  • Patent number: 6122945
    Abstract: A new keyless door knob security device with stabilizer arm for preventing access to a keyhole of a door knob to prevent unauthorized access. The inventive device includes a central shaft that has first and second ends and a longitudinal axis extending between the ends. A claw ring has a plurality of claws extending outwardly from it and an aperture through it. The central shaft extends through the aperture of the claw ring. The claws are adapted for grasping the door knob. A cover is slidably positionable along the central shaft such that sliding the cover in a first direction presses the claws towards each other such that the claws grasp the door knob. Sliding the cover in a second direction permits the claws to move apart from each other. A locking mechanism permits selective locking of the cover in a locked orientation and an unlocked orientation.
    Type: Grant
    Filed: February 11, 1999
    Date of Patent: September 26, 2000
    Inventor: Jackie N. Grant
  • Patent number: 6105406
    Abstract: Disclosed is a security device for securement to a door in association with a latch mechanism having a face plate and knob to selectively prevent unauthorized turning of the latch mechanism and knob. The device includes a plate for securement to the door in association with the face plate of the latch mechanism. A hood element selectively prevents rotation of the latch knob, the hood element being reciprocable relative to the plate means into and out of engagement with the latch knob. The plate and the hood element preventing rotation include cooperating locking mechanisms when the hood element is brought into contact with the latch knob. There is also a release mechanism for releasing the locking mechanisms. Preferably the locking mechanisms are of the pawl and ratchet type.
    Type: Grant
    Filed: July 6, 1998
    Date of Patent: August 22, 2000
    Inventors: Stephen G. Thompson, Mark W. Forest
  • Patent number: 6102451
    Abstract: A door latch push bar assembly for providing a push bar for unlatching a door latch such as the type found on storm doors. The door latch push bar assembly includes a mounting bracket and an elongate rod having a pair of opposite ends. A first of the ends of the rod is pivotally coupled to the mounting bracket. The mounting bracket is designed for mounting to a door adjacent a first side of the door. A second of the ends of the rod is designed for extending towards a second side of the door and for receiving a free end of pivotable lever of a latch adjacent the second side of the door releasably engaging the second side of the door to an adjacent portion of a door frame.
    Type: Grant
    Filed: April 1, 1999
    Date of Patent: August 15, 2000
    Inventor: Donald E. Merryman
  • Patent number: 6010166
    Abstract: A lower steel plate casing has a housing attached to a back plate secured to a door and defines an enclosed chamber defining a channel portion through which a portion of an operating handle of a swing door keeper bar passes. An upper steel plate casing has a housing and is pivoted to the back plate. The upper casing housing defines a further enclosed chamber having a further channel portion through which a portion of the handle passes in cooperation with the lower casing channel portion in a housing locking position. A bolt seal has a head fixed to a shank and a lock body releaseably attached to the shank for locking the two housings together. The shank is laterally protected by the enclosed chambers and axially protected by the head at one shank end and the lock body at the other shank end and by various housing plates having apertures in which the head, lock body and the bolt shank are received.
    Type: Grant
    Filed: August 24, 1998
    Date of Patent: January 4, 2000
    Assignee: Transguard Industries, Inc.
    Inventors: Craig Hamilton, Robert F. Emmons
  • Patent number: 5975595
    Abstract: A protector device for hardware latch members used in conventional containers and trailers to secure in place the pivoting locking bar members. The device includes a housing having a substantially rectangular cross-section defined by side walls, a top wall and a bottom wall. Hingedly mounted tabs extending outwardly from the inner edge of the side walls are foldable within the housing and secured on the hardware latch members of the door being protected. The distal ends of the latch members include openings though which a conventional protective seal member is passed. Upper and lower concave members join the walls' outer edges and they are separated defining aperture inbetween. In front of the aperture a convex wall is mounted to the outer edges of the side walls and cutouts on the upper and lower walls permit a protective seal member through. The latch members are completely covered and protected.
    Type: Grant
    Filed: December 18, 1998
    Date of Patent: November 2, 1999
    Inventor: Lorenzo Lorenzo
  • Patent number: 5904385
    Abstract: The invention concerns a handle, especially with a lock, for the exterior of a motor vehicle's gate or door, with a housing in which the handle is sunk, and on which the handle is linked swivel-mounted whereby it is possible to grab around the handle by hand, whereby the front surface of the housing is completely or partially covered on the outside by a covering disk which is swivel-mounted or slidable in such a manner relative to said housing, that the covering disk covers up the handle in the disk's closed-position and the covering disk releases the handle in the disk's open-position, and that the handle 3 is acted upon in an external direction by a spring, by which the handle can be pressed from its internal position into its external position protruding outwards.
    Type: Grant
    Filed: August 1, 1997
    Date of Patent: May 18, 1999
    Assignee: Valeo Deutschland GmbH & Co.
    Inventor: Anton Linder
  • Patent number: 5853218
    Abstract: An arm rest for use with the door of a motor vehicle is disclosed which provides comfort and added safety feature for the driver or passenger of the motor vehicle. The arm rest preferable includes a base, a leg which is inserted between a panel of the door and the window, and a padded portion on which the driver or passenger may rest his or her arm during operation of the motor vehicle. Raised projections on the leg of the arm rest secure the arm rest in the door. A high-friction material, such as rubber, prevents the arm rest from slipping or scratching the molding on the door. The arm rest also contains a padded portion which is supported by a support member such as wood, and consists of foam padding covered by a cloth or vinyl cover. The arm rest may contain a notch for receive the post of an door lock. The arm rest may also have a canopy on the base for covering the door lock to prevent an intruder or thief from unlocking the motor vehicle door. A method of using the apparatus is also disclosed.
    Type: Grant
    Filed: August 28, 1997
    Date of Patent: December 29, 1998
    Assignee: Robert L. Cox
    Inventor: Robert Cox
  • Patent number: 5794871
    Abstract: A portable door lock includes an interior member and an exterior member which are connected to each other by a strap. The interior member is slideable along the strap and the strap is provided with a selectively engageable mechanism for restricting movement of the interior member along the strap away from the exterior member.
    Type: Grant
    Filed: February 18, 1997
    Date of Patent: August 18, 1998
    Inventor: Thomas Willetts
  • Patent number: 5713615
    Abstract: A doorknob cover that provides a means for improving the appearance and feel of a doorknob while retaining the rotation and function of the doorknob. The cover, made of soft cloth-like material, is shaped similar to a doorknob with a spherical head, narrower neck and wider base. Openings along the neck of the cover and the flexibility of the material allow the base and neck of the cover to stretch and fit over the doorknob. A string is laced through the neck of the doorknob cover, then tied tightly to secure the cover on the doorknob so that it cannot be removed by pulling. The underside of the cover is coated with a layer of rubber-like material that promotes friction against the surface of the doorknob to allow easy operation of the doorknob without the cover slipping. The coating will also prevent the transfer of static electricity from the metal of the doorknob to the hand. In addition, the soft cover will protect the hand from the coldness of metal doorknobs during cold weather.
    Type: Grant
    Filed: August 2, 1996
    Date of Patent: February 3, 1998
    Inventor: Hsu-Hei Tsai
  • Patent number: 5713614
    Abstract: A flexible handle extension for a pivoted handle of a light-duty door latch assembly of a screen door and the like and a method of substantially reducing an opening force required to unlatch the assembly from the door jam. The handle extension includes an elongated semi-flexible tube sized in inner diameter to biasingly slidably engage over and be self-retaining on the handle and sized in length to be at least twice the length of the handle. The combination of handle extension length and semi-flexibility substantially reduces door opening force while diminishing the seriousness of body injury when the handle and attached handle extension are accidentally bumped or struck by an individual.
    Type: Grant
    Filed: September 11, 1996
    Date of Patent: February 3, 1998
    Inventor: Lee A. Anderson
  • Patent number: 5647248
    Abstract: A stretchable door handle cover device constructed preferably of synthetic rubber material which resists stretching having a main body wider than the handle to be protected with an upper tab which is inserted beneath the handle base thereby fixing the device to the door handle and a lower receptacle defined in the cover into which a cup accommodatingly larger than the end of the door handle is inserted so that the body of the cover can be stretched over the handle and held in place by engaging the cup over the end of the door handle.
    Type: Grant
    Filed: June 5, 1996
    Date of Patent: July 15, 1997
    Inventor: Winfield F. Silsby, Jr.
  • Patent number: 5501494
    Abstract: A portable door lock includes an interior member and an exterior member which are connected to each other by a cord. The interior member is slidable along the cord and the cord is provided with a stopping member which is engageable by the interior member to prevent movement of the interior member along the cord away from the exterior member. In a first embodiment, the interior and exterior members are spheres and the stopping member is a knot and a washer. The interior sphere is substantially hollow and has a through bore with a key hole for engaging the washer. The cord is provided with a loop adjacent the exterior sphere for hanging the exterior sphere on an exterior door knob. In a second embodiment, the exterior member is a truncated hollow sphere which is dimensioned to fit over an exterior door knob. The strength of the lock is dependent on the materials chosen, but should be sufficient to be impenetrable by children, but easy for an adult to break.
    Type: Grant
    Filed: September 12, 1994
    Date of Patent: March 26, 1996
    Inventor: Thomas Willetts
  • Patent number: 5486252
    Abstract: A method of bonding a contoured seat cover with a first surface to a seat cushion with a second surface is provided which includes the steps of coating the second surface with a heat-activated adhesive, placing a flexible planar heating member between the first and second surfaces, pressing the first and second surfaces together against the heater with a force of one to five pounds per square inch, heating the adhesive with the heating member, removing the heating member while the first and second surfaces are pressed together, and allowing the adhesive to solidify and then relieving the pressure between the seat cover and the seat cushion.
    Type: Grant
    Filed: March 14, 1994
    Date of Patent: January 23, 1996
    Assignee: General Motors Corporation
    Inventor: Daniel K. C. Wong
  • Patent number: 5474341
    Abstract: A locking mechanism for a container having a hinged lid comprising a shaft adapted to be secured to a container and journaled for rotation about its axis. A locking bar is removably secured to the shaft and rotatable about the axis with the shaft between a locked position and an unlocked position. A lock lever is secured to the shaft between the locked position and the unlocked position and a roller is mounted on a track over the lock lever for motion into and out of an engagement with a lock lever. The shaft is held from rotation when the roller and the locking bar is in the locking position. The locking bar is free to move into and out of its locked and unlocked position and the roller is moved from its locking position.
    Type: Grant
    Filed: July 11, 1994
    Date of Patent: December 12, 1995
    Assignee: Fikes, Inc.
    Inventors: Peter B. Putman, Jerry A. Hampel
  • Patent number: 5425256
    Abstract: A security device for use with rotatable door knobs which incorporates a pair of generally cylindrical members positioned on a door knob and telescoped together to receive a padlock to prevent separation. The housing members rotate relative to each other and to the door knob to prevent actuation of the door knob and access to any keyed lock that may be incorporated in the knob.
    Type: Grant
    Filed: June 6, 1994
    Date of Patent: June 20, 1995
    Inventor: Theodore M. Crosby
  • Patent number: 5423583
    Abstract: An openable rotatable shell which is positioned on and encloses a conventional key lock door knob. The shell freely rotates and prevents exerting a turning force on the knob. Since the keyhole on the knob is covered by such shell, the door cannot be opened until a second lock provided on the shell is opened allowing the shell to be removed from the knob.
    Type: Grant
    Filed: May 2, 1994
    Date of Patent: June 13, 1995
    Inventor: James Crockom
  • Patent number: 5303971
    Abstract: A tailgate release handle security device for attachment to a tailgate incorporates a cover comprising a metal plate and an integral inwardly extending skirt having a rim which bears against an outer panel of a tailgate. A pair of hooks, attached to the skirt, extend outward through a pair of apertures in the tailgate release handle recess and bear against the back of the tailgate outer panel. A cylindrical lock, mounted in the plate, has a locking dog which presses outwardly against the upper edge of the back of a tailgate release handle when the security device is attached to the tailgate.
    Type: Grant
    Filed: April 30, 1992
    Date of Patent: April 19, 1994
    Assignee: Steadfast Corporation
    Inventors: Roger L. Johnsen, Dimiter S. Zagoroff
  • Patent number: 5231731
    Abstract: A counterbalanced, one-piece, non-slip, lever action handle for retrofit adaption to existing door knobs is disclosed wherein a conforming, contoured lever handle is provided with self-tapping anchor screws for permanent attachment of the lever handle to a target door knob. Once attached, the lever handle becomes an extension of the existing door knob thereby facilitating greater access to individuals with disabilities.
    Type: Grant
    Filed: July 28, 1992
    Date of Patent: August 3, 1993
    Inventor: Robert L. Jones, Jr.
  • Patent number: 5220697
    Abstract: A handle assembly for a shower nozzle assembly having a slide bar for being vertically mounted on the wall in a bath, a shower nozzle slidably mounted on the slide bar and a clamp for releasably clamping the shower nozzle in a predetermined adjustment position along the length of the slide bar. The handle assembly includes an elongated handle positioned on the clamp. The handle assembly makes it easy for the shower nozzle to be adjusted by a person seated in a position where the clamp itself cannot be grasped by the person to loosen the shower nozzle and permit adjustment of the height of the shower nozzle.
    Type: Grant
    Filed: November 4, 1991
    Date of Patent: June 22, 1993
    Inventor: William T. Birchfield
  • Patent number: 5203187
    Abstract: The present doorlock closure secures existing doors having conventional doorknobs against entry by enveloping the doorknob with opposed cavity compartments of knob confining segments. Upper and lower housing segments are hinged together such that they may mount elements which form a cam-lever, segment interlocking assembly. The assembly includes a spring-loaded latch and lockable latch lever in the upper segment and a corresponding cam latch release in the lower segment. The housing segments themselves are hinged together for facile clamping upon the doorknob of a door, securing it against entry by persons having a passkey to the doorknob which retains a turnkey lock therein.
    Type: Grant
    Filed: June 22, 1992
    Date of Patent: April 20, 1993
    Inventor: James T. Kane
  • Patent number: 5193373
    Abstract: A security device to be usable with a dead bolt lock to prevent the lock from being opened from the outer side of an associated door. The security device includes a body member having a space for receiving a dead bolt lock handle and a slidable retainer for locking the handle to the body member with a pin. The pin is attached to one end of a flexible connector with the other end being affixed to an attachment plate mounted on the door. The flexible connector and attachment plate prevent the body member and handle from rotating due to unauthorized turning of the dead bolt.
    Type: Grant
    Filed: March 16, 1992
    Date of Patent: March 16, 1993
    Inventor: Robert J. Hunt
  • Patent number: 5118149
    Abstract: Protector apparatus for a hasp of a shipping container of the type having a pair of alignable hasp apertures includes a metal box-shaped body having a top plate, a bottom plate, right and left side plates, an open rear face, and a front face. The apparatus further includes a shield plate on the face of the body extending transversely between the side plates and forming a top opening in the face between the shield plate and the top plate and forming a bottom opening between the shield plate and the bottom plate. A shield aperture in the shielf plate is alignable with the hasp apertures, through all of which apertures a breakaway seal may be threaded for securing the breakaway security seal to the hasp and to the body of the protector. The body supports itself on the hasp and protects the hasp from intentional breakage.
    Type: Grant
    Filed: June 10, 1991
    Date of Patent: June 2, 1992
    Inventor: Robert F. Emmons
  • Patent number: 5029916
    Abstract: A push-pull door lock chiefly comprising a sleeve on one side of a conventional door lock and a sleeve with a pull ring on the front edge on another side thereof, wherein two rollers are pivotally mounted in the sleeve and two protruding shafts are provided to the end of sleeve, each one neck of the conventional door lock handle is provided with an inclined slide groove to receive each one roller on the sleeve, each one thimble is provided to each one fixing ring on both sides of the conventional door lock so as to respectively install a compression spring and a stretch spring and to receive the two protruding shafts on the sleeve; therefore, a push-press handle is on the one side of door lock and a pull-open handle is on the another side thereof, and through pushing the sleeve on the one side of the conventional door lock by any one portion of the user's body or pulling the pull ring on the front of sleeve on the another side thereof by his any one finger, the sleeve actuates the door lock handle to rotate,
    Type: Grant
    Filed: October 24, 1990
    Date of Patent: July 9, 1991
    Inventor: I-Hsin Chiu
  • Patent number: 4986585
    Abstract: An anti-theft guard for a wing window latch includes a hollow tubular sleeve and an anchoring element for releasably attaching the sleeve to the latch body. The sleeve is insertable at one open end over the latch body, and is of sufficient length to extend beyond the body and surround and shield a safety push button thereon from access except through an opposite open end of the sleeve. The sleeve has a longitudinal slot defined in a side portion extending from the one open end toward the opposite open but terminating short thereof. The slot has an outer portion located adjacent the one open end of the sleeve and an inner portion located remote therefrom and wider than the outer portion.
    Type: Grant
    Filed: March 1, 1990
    Date of Patent: January 22, 1991
    Inventors: Scott C. Panter, Leon C. Van Vessum
  • Patent number: 4932708
    Abstract: The present invention provides a cover for use in a vehicle such as an automobile for covering door operating elements thereby concealing them from children. The cover is in the form of a rectangular box-like housing which is placed over any upwardly projecting elements such as a locking button, the housing having a bowed front flange which hides such elements as a latching handle on the inside of the door. A rear flange can be inserted between the window and the lower door portion to retain the cover in position.
    Type: Grant
    Filed: November 28, 1989
    Date of Patent: June 12, 1990
    Inventor: Sandra J. Taub
  • Patent number: 4913479
    Abstract: A door knob handle attachment for securement to conventional round door knobs is formed by two mating semicircular shell members. An elongated lever extends from one shell member to enable disabled individuals to more easily open doors. The shell members each have an undercut recess lined with a resilient material for frictional engagement around a door knob. The shell members may be pivotally connected at first aligned ends and secured together at opposite aligned ends to form a circular collar. In a second embodiment, radially movable clamp members are provided in the undercut recess of each of the shell members for engagement with a conventional door knob.
    Type: Grant
    Filed: January 31, 1989
    Date of Patent: April 3, 1990
    Inventor: Lawrence P. M. A. Allison
  • Patent number: 4869305
    Abstract: A doorknob cover that defeats facile rotation of a doorknob. Two layers of cloth or other low friction material are placed in juxtaposition with one another and joined at their respective outermost peripheral edges. A second attachment is made between the materials just radially inwardly of the outermost peripheral edge to form a toroidal cavity to receive a drawstring. The device is placed over a doorknob and the opposite ends of the drawstrings are tied together tightly so that the device cannot be removed from the doorknob unless the knot is first untied. Young children are unable to rotate a doorknob covered by the device due to the double layer of cloth and the low frictional engagement between the inner piece of cloth and the doorknob.
    Type: Grant
    Filed: December 14, 1988
    Date of Patent: September 26, 1989
    Inventor: Mark T. Jones
  • Patent number: 4856140
    Abstract: A cover for a knob or handle is disclosed herein that carries a disinfectant in its porous material adapted to be slidably engaged over the knob or handle in order to substantially act as a barrier between the fingers of a person and the possible contaminated surface of the knob or handle. The cover includes a cup-like portion defining a pocket for insertably receiving the knob or handle in close frictional engagement. A neck portion extends or projects from the pocket to cover the mounting shaft of the knob or handle, and, if desired, a band retainer may be employed for holding the cover in place. A plurality of slits or openings are provided through the material, permitting the user's fingers to grab limited surface areas of the knob or handle allowing knob turning.
    Type: Grant
    Filed: June 9, 1988
    Date of Patent: August 15, 1989
    Inventors: Frank Visco, Alfiero Balzano
  • Patent number: 4783883
    Abstract: Several embodiments of levers are particularly adapted for attachment to door knobs. The levers provide for increased leverage to effect a more easy turning of a door knob to which they are attached.
    Type: Grant
    Filed: February 2, 1987
    Date of Patent: November 15, 1988
    Inventor: Alexander Szalay
  • Patent number: 4773684
    Abstract: The invention relates to a door fitting with at least one door operating unit, such as a doorknob, a door handle or the like, and at least one cover plate to cover the opening provided in a door, a window sash or the like for the door operating unit, in which the cover plate has at least one round opening for the door operating unit. Primarily in order to secure the door handle against being pulled off, but also in order to help secure the door handle against canting, the invention provides that the door operating unit for such a door fitting has a cylindrical circumferential groove in the area going through the opening in the cover plate when installed, and that the cover plate consists of at least two parts with curved recesses having inner shoulders that are adapted to the groove and which can be inserted into same, and that the curved recesses combine to form a circular opening in the cover plate when the pieces are combined.
    Type: Grant
    Filed: March 17, 1987
    Date of Patent: September 27, 1988
    Assignee: Normbau, Inc.
    Inventors: Dieter Dieckmann, Jacques Chiri
  • Patent number: 4648643
    Abstract: The lever assembly is of two principal parts: a lever with a circular aperture to engage the shank of a door knob, and a retaining plate, for fastening thereof to the lever, having a projecting cog. The cog engages a knob catch slot in the door knob shank. Accordingly, as the lever is rotated/manipulated, it turns the door knob through the engagement of the cog with the slot, and the fastening of the plate to the lever. The assembly accommodates retrofitting thereof to doors having round door knobs.
    Type: Grant
    Filed: April 21, 1986
    Date of Patent: March 10, 1987
    Assignee: Schlage Lock Company
    Inventor: Richard R. Bettger
  • Patent number: 4629229
    Abstract: A lock device for use on the doorknob of a vertically hinged door. The lock device includes a flexible cable with opposite legs connected at one end to form a loop for insertion over the doorknob and a sleeve on the loop of the cable which extends around the reduced neck of the doorknob behind the head of the doorknob. The opposite end of the cable is retained in a box in the building wall next to the door jamb.
    Type: Grant
    Filed: August 12, 1985
    Date of Patent: December 16, 1986
    Inventors: Frank Correnti, Thomas Dell 'Acqua
  • Patent number: 4504087
    Abstract: A lever attachment for a rotary door knob comprises an arcuate collar adapted to embrace the knob, the collar terminating at its opposite ends in arms and being formed on an arc such that the arms have a tendency to diverge. The collar is formed of material sufficiently resilient to enable the arms to be moved into engagement with one another, thereby causing radial contraction of the collar and enabling the latter to grip the knob. The arms are releasably maintained in engagement by any one of a number of different kinds of latches.
    Type: Grant
    Filed: July 16, 1981
    Date of Patent: March 12, 1985
    Inventor: Alfred C. Pennington
  • Patent number: 4503692
    Abstract: A protective doorknob encasement device which provides a protective cover over the space formed between a door jamb and an exterior doorknob to prevent insertion of a tool to forcibly open the door. The invention includes a mounting plate and a track guide to enable slidable attachment of a protective casement. The track guide is configured so as to orient and restrict movement of the casement along the track and only in a direction toward the exterior door surface. Removal of the casement is permitted by its continued forward motion along the track and is only possible when the door is open. This unidirectional forward motion results from use of spring-biased pawls coupled to the casement which catch in corresponding grooves set in the mounting plate to prevent rearward motion. An opening is provided in the casement in alignment with a key slot of the enclosed doorknob to permit normal access.
    Type: Grant
    Filed: August 23, 1982
    Date of Patent: March 12, 1985
    Inventor: Dean R. Grint
  • Patent number: 4471980
    Abstract: In abstract, this invention relates to a safety medicine cabinet or storage compartment featuring a hinged closure which incorporates a positive latching mechanism for readily securing the cabinet from access by small children. Additionally, the safety medicine cabinet or storage compartment incorporates a closure being spring biased whereby the same is caused to close automatically and latch upon release from open position.
    Type: Grant
    Filed: January 19, 1983
    Date of Patent: September 18, 1984
    Inventor: William V. Hickman
  • Patent number: 4397489
    Abstract: An adapter for providing a lever attachment to a round door knob has a hollow threaded cylinder fitted with a lever which cylinder slides over the knob and is frictionally secured to the knob by compressing the knob between one end of the cylinder and a tightened split ring threaded into the other end of the cylinder. Elastomeric material placed on either or both sides of the knob increase the friction and prevent slipping of the adapter on the knob after tightening.
    Type: Grant
    Filed: December 22, 1980
    Date of Patent: August 9, 1983
    Inventor: Willard H. Lind
  • Patent number: 4285536
    Abstract: A universal lever handle attachment for a door knob wherein a knob engaging and gripping portion is adapted to fit over a door knob, an intermediate portion is connected to the knob engaging portion and is configured to operatively receive a universal screw adjusting assembly which tightens the knob engaging portion onto the door knob and a handle portion extending outwardly from the intermediate portion. The universal screw means is operatively arranged to cooperate with the intermediate portion to provide for right or left hand installation.
    Type: Grant
    Filed: November 23, 1979
    Date of Patent: August 25, 1981
    Assignee: TLM Industries, Inc.
    Inventors: French T. McCoy, Thomas A. Steinbrunner, Dale L. McEvers, Loyal M. Overholser
  • Patent number: 4223931
    Abstract: The invention provides a simple, inexpensive, efficient means of converting a standard doorknob into a lever operated doorknob which may be easily operated by the handicapped. The invention allows the use of existing hardware trim and can be retro-fitted to existing installations.
    Type: Grant
    Filed: June 25, 1979
    Date of Patent: September 23, 1980
    Assignee: Schlage Lock Company
    Inventor: Ralph E. Neary
  • Patent number: 4181339
    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.
    Type: Grant
    Filed: May 22, 1978
    Date of Patent: January 1, 1980
    Inventor: Randle L. Rigsby
  • Patent number: 4127967
    Abstract: The improved burglar-resistant door assembly of the invention comprises a door frame, a door hingedly connected to one side of said frame, door latch means connected to the inside surface of said door, a peephole device extending through said door and a protective cover device releasably disposed over the peephole device and/or latch means to prevent tampering therewith. The cover device may comprise a suction cup or pivotally mounted cover plate over the peephole or a screw cover on a threaded track around the peephole, or latch means, or an elastic cover stretched over and gripping the latch means. The latch means may be, for example, a door knob, dead bolt knob or the like. In one embodiment of the cover device, a spaced pair of parallel tracks are mounted on said door inner surface on opposite sides of said latch means and run from about the edge of the door containing the latch means to a location past the latch means and towards the opposite hinge-bearing edge of said door.
    Type: Grant
    Filed: October 6, 1976
    Date of Patent: December 5, 1978
    Inventor: Gertrude K. Franzl
  • Patent number: 4101155
    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.
    Type: Grant
    Filed: March 18, 1977
    Date of Patent: July 18, 1978
    Inventor: Nathan Cohen
  • Patent number: 4084845
    Abstract: There is disclosed a security lock for emergency door latches which are typically provided with a crash bar pivotally carried on the door and extending transversely across its inner face. The security lock comprises a bracket arm which is pivotally mounted on the side brackets of the door latch mechanism and which carries, on its free end, a cover bar which overlies a substantial portion of the crash bar. The bracket arm is provided with locking means for restraining its pivotal movement whereby the bracket arm and its dependent cover bar can be restrained in a raised or lowered position, thereby preventing actuation of the crash bar, or locking the crash bar in its latch disengaging position.
    Type: Grant
    Filed: June 14, 1976
    Date of Patent: April 18, 1978
    Inventor: Robert L. Eckert
  • Patent number: 4069692
    Abstract: An aircraft anti-theft device for use with an instrument panel-mounted engine control of the type typically found in light aircraft which has a control shaft provided with a hand-grip knob at one end thereof mounted for telescopic movement relative to the instrument panel from an extended engine-idle position to a depressed full power position, or from an extended full-lean (idle cutoff) position to a depressed full-rich position, depending on the type of control, includes a housing covering the hand-grip knob and a shaft enclosure member which fits over the control shaft in its extended position for preventing its telescopic movement. The anti-theft device also includes a peripherally slotted segment connected between two outer segmented portions of the shaft enclosure member to receive an ordinary padlock whose shank fits into the slot to keep the lock from being dislodged and to prevent removal of the enclosure member.
    Type: Grant
    Filed: April 23, 1976
    Date of Patent: January 24, 1978
    Inventor: Robert L. Hemphill
  • Patent number: 4007956
    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.
    Type: Grant
    Filed: May 23, 1975
    Date of Patent: February 15, 1977
    Inventors: Steven K. Harris, Stanley P. Schiffman
  • Patent number: 3999788
    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.
    Type: Grant
    Filed: July 2, 1975
    Date of Patent: December 28, 1976
    Inventor: Richard J. Livingston
  • Patent number: 3960396
    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.
    Type: Grant
    Filed: September 11, 1974
    Date of Patent: June 1, 1976
    Assignee: Dowa Co., Ltd.
    Inventor: Kingo Miyahara