Patents by Inventor Petros Z. Mantarakis

Petros Z. Mantarakis has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 6155010
    Abstract: Window grill clips which can be used to removably attach window grills to windows. The window grill clip has a window frame segment and a grill segment extending from the window frame segment at an upward inclined angle. An opening is defined through the grill segment. A tang connected to the grill segment has a first leg extending away from the grill segment and a second leg extending from the first leg and back toward the opening in the grill segment. The grill segment may have a tab which extends downward from and end of the grill segment opposite an end of the grill segment connected to the window frame segment. Window frame engagement spikes may be provided on the window frame segment.
    Type: Grant
    Filed: September 24, 1998
    Date of Patent: December 5, 2000
    Assignee: Reflectolite Products, Inc.
    Inventors: Donald A. Becken, Petros Z. Mantarakis
  • Patent number: 6065785
    Abstract: A limiter or stop for a sliding door or sliding panel is provided. The limiter includes a shaft disposed within the escutcheon that is connected to a head. The head includes two spaced-apart holes for frictionally receiving locking rods or bars. The head is further connected to retaining elements for securing the rods in position after insertion. The rods may be manually removed and inserted into either hole in the head. Rods of differing lengths are provided. Accordingly, a single limiter is provided that may be installed in a variety of different positions.
    Type: Grant
    Filed: May 4, 1998
    Date of Patent: May 23, 2000
    Assignee: Reflectolite Products
    Inventors: Petros Z. Mantarakis, Donald A. Becken
  • Patent number: 6042161
    Abstract: A flexible coupling is provided for a lock actuator and a latch assembly. The coupling is particularly useful for sliding glass doors and enables the actuator to be mounted to the door in an axially offset relationship with respect to the connecting member of the latch assembly. The coupling includes a male member that includes an outwardly protruding knuckle that is pivotally and frictionally received in the socket of a female member. The male member is connected to either the lock actuator or the latch assembly while the female connector is connected to the other of the lock actuator or the latch assembly. Rotation of the lock actuator results in rotation of both the male and female member thereby resulting in rotation of the connecting member of the latch assembly even though the actuator is disposed offset from the connecting member.
    Type: Grant
    Filed: May 4, 1998
    Date of Patent: March 28, 2000
    Assignee: Reflectolite Products
    Inventors: Petros Z. Mantarakis, Donald A. Becken
  • Patent number: 6023952
    Abstract: A door handle assembly comprises an interior handle connected to the interior face of a door, a latch mechanism which is operable between latched and unlatched positions to secure the door, an operator mounted to the door and rotatable with respect to the handle, and a rack and pinion assembly to transfer the rotary motion of the operator to the latch mechanism. The operator includes a tumbler assembly. The rack and pinion assembly may include a rack and two pinions one located at each end of the rack. However, other arrangements are possible including gear trains comprising two or three gears driven by the rack. The rack and pinion assembly may be mounted between a pair of planar members which form part of a housing which is proportioned to fit between the latch mechanism and an interior surface of a stile of a door. The rack and pinion assembly permits the latch mechanism and the operator, which have usually been coaxial, to be vertically offset from each other.
    Type: Grant
    Filed: October 27, 1997
    Date of Patent: February 15, 2000
    Assignee: Reflectolite Products, Inc.
    Inventors: Petros Z. Mantarakis, Kevin Michael Argo
  • Patent number: 5890261
    Abstract: The present invention provides door handle bases for use in mounting door handles to doors. The door handle base has a base plate having a door handle side and an opposite door side, and a pair of tabs attached to the base plate. The pair of tabs are spaced apart from each other and each tab defines a fastener hole through the tab. A boss protrudes from each tab away from the door side of the base plate and contacts the door when the door handle is mounted to the door by the door handle base. The tabs are removably attached to the base plate by a frangible connection and are useable with multiple door handles and doors.
    Type: Grant
    Filed: July 31, 1997
    Date of Patent: April 6, 1999
    Assignee: Reflectolite
    Inventor: Petros Z. Mantarakis
  • Patent number: 5845363
    Abstract: An adjustable roller assembly for sliding doors including a housing adapted to be snap-fit into a recess provided in the upper or lower surface of a door frame, the housing defining a cavity which is open at the lower end. A roller carrier is mounted in the housing cavity and is vertically biased outwardly by one or more coil springs. Rotatably mounted within the roller carrier is a roller adopted to travel along a track. A base plate is disposed within the housing and is connected to a rack member. The rack member is provided with teeth which engage and cooperate with the gear teeth of an adjustment gear extending laterally through both sides of the housing. An engagement slot, adapted to receive a screwdriver or similar tool, is provided in at least one end of the adjustment gear. Vertical adjustment of the base plate may be achieved by rotating the adjustment gear, which vertically moves the rack member and its connected base plate.
    Type: Grant
    Filed: May 22, 1997
    Date of Patent: December 8, 1998
    Assignee: Quanex Corporation
    Inventors: Maitland J. Brempell, Laurence P. Armstrong, Petros Z. Mantarakis
  • Patent number: 5722704
    Abstract: A door lock has a latch which is rotatable from a retracted position to an extended position by means of a linkage. A safety button extends from the latch when the latch is retracted. The linkage cannot be moved unless the safety button has been pressed, which occurs when the door is adjacent the door frame. This prevents the latch from extending and so damaging the keeper in the door frame. The linkage also has a notch which cooperates with a tang projecting from the housing. The tang an notch prevent the latch from being rotated from the extended position to the retracted position except by operation of the linkage. This feature makes it difficult to force the lock open without a key. In addition, one or more remote locks may be added to the main lock. With two remote locks it is possible to provide three anchor points for a door.
    Type: Grant
    Filed: April 23, 1996
    Date of Patent: March 3, 1998
    Assignee: Reflectolite Products, Inc.
    Inventors: Ivanhoe E. Chaput, Petros Z. Mantarakis
  • Patent number: 5322332
    Abstract: A latch assembly for use with a panic exit device, particularly a top latch having a U-shape which engages a stem portion of a T-shaped receiving lug mounted overhead to a top member of the door frame. The U-shaped top latch is pivotably mounted to the active stile of the door. The latch assembly causes the U-shaped latch to pivot upward to capture the stationary T-shaped receiving lug, or pivot downwardly to disengage from the T-shaped receiving lug. The latch member is in sliding and abutting engagement with two latch plates which slide in one direction to retain the latch member in a downward orientation to hold the latch in an open position, and slide in an opposite direction to allow the latch member to pivot upwardly upon engaging pressure by the strike. A wedge is caused to slide into blocking engagement with the latch when it is in the closed position.
    Type: Grant
    Filed: October 16, 1992
    Date of Patent: June 21, 1994
    Assignee: Thomas Industries, Inc.
    Inventors: George Toledo, Petros Z. Mantarakis
  • Patent number: D384266
    Type: Grant
    Filed: January 29, 1996
    Date of Patent: September 30, 1997
    Assignee: Reflectolite Products, Inc.
    Inventors: Petros Z. Mantarakis, Kevin Michael Argo
  • Patent number: D384568
    Type: Grant
    Filed: April 16, 1996
    Date of Patent: October 7, 1997
    Assignee: Reflectolite Products, Inc.
    Inventors: Petros Z. Mantarakis, Kevin Michael Argo