Rigid Patents (Class 292/202)
  • Patent number: 4463976
    Abstract: In a casement window, the casement fastener comprises a pivotal lever handle 5 mounted on the sash 2 through a plate 7 and a keeper 6 mounted on the casement frame 1. The keeper 6 has two similar lugs 14,15 symmetrically disposed lengthwise of the keeper plate 11. The lever handle 5 has an abutment face 10 to engage either lug 14,15 for fastening the sash, and a through slot 9 in which either lug 14,15 may be received to hold the sash in a ventilating position. The fastener may be used for right or left hinged sashes, and by the special form of keeper and handle, the fastener can be used for any required attitude of installation without concern for specially handed keepers or lever handles.
    Type: Grant
    Filed: November 8, 1982
    Date of Patent: August 7, 1984
    Assignee: Arthur Shaw Manufacturing Limited
    Inventor: Jack E. Douglas
  • Patent number: 4443032
    Abstract: A lock for boat shutters and the like comprising a shaft, extending through a shutter, with a means thereon providing a square seat at one end, for operation by winch handle, and a hex head at the other end; a handle having a cam engageable with a shutter frame and an opening which receives the shaft therethrough; and a spring-biased knob inserted into the handle and having a hex cavity to receive the hex head of the shaft; the handle having recesses which receive, in one position of the knob, mating projections on the knob to operatively connect the shaft with the cam, and wherein, in a second position of the knob, the recesses and projections are disengaged so that the shaft is disconnected from the cam.
    Type: Grant
    Filed: March 1, 1982
    Date of Patent: April 17, 1984
    Assignee: C.M.L. Construzioni Meccaniche Lamazzo S.p.A.
    Inventor: Luciano Bonassi
  • Patent number: 4418951
    Abstract: This invention relates to a rotary type latch for sliding screen doors wherein the rotary member is molded from a plastic material such as a polycarbonate and which is rotatable in either direction for universal application to either right hand or left hand door operations. The rotary latch engages a slot in a door pull molded from a similar plastic material and contacts the screen door frame through the slot to cam the door against a retaining channel mounted on a door frame. The rotary latch includes a plurality of flat cam faces affording multiple locking positions and which necessitate positive lock rotation to enable the latch to be disengaged. This latch mechanism is of particular usefulness for application to sliding patio screen doors where the screen door closes into a pocket within the side jamb of the patio door frame.
    Type: Grant
    Filed: July 16, 1981
    Date of Patent: December 6, 1983
    Assignee: Nichols-Homeshield, Inc.
    Inventors: Steven C. Schultz, Thomas A. Vaughn
  • Patent number: 4397487
    Abstract: A free-wheeling latching mechanism for securing a removable closure frame to a second closure frame includes a latching plate rotatable on a shaft fixed to, and spaced from, the second frame by a flange integrally formed on the shaft. A cap nut is used to retain the latching plate on the shaft during rotation, while providing spacing from the flange, and a sill attached to the second frame is used to support the removable frame during rotation of the latching plate.
    Type: Grant
    Filed: August 28, 1980
    Date of Patent: August 9, 1983
    Inventor: Milton Guttman
  • Patent number: 4325239
    Abstract: A safe having a base plate to be covered by a hingedly mounted hood which can be locked in place by a lock carried by the hood, wherein the locking element carried by the hood not only fits under a retainer element on the base plate but also fits in a slot in the hood.
    Type: Grant
    Filed: January 17, 1980
    Date of Patent: April 20, 1982
    Assignee: Supra Products, Inc.
    Inventor: Wayne F. Larson
  • Patent number: 4270780
    Abstract: A fastening device for a door permits the actuation thereof by a handle, a locking element, or a key of normal kind. A bearing, fast to the wall of the door, can receive either a standard shaft, or a lock cylinder, or again a shaft having a head of particular shape, each of these three members being associated with a same operating handle and a same bolt.
    Type: Grant
    Filed: June 21, 1979
    Date of Patent: June 2, 1981
    Assignee: La Telemecanique Electrique
    Inventor: Pierre J. Bernard
  • Patent number: 4251095
    Abstract: The combination with a cabinet structure containing one or more openings and cover panels for covering the openings of latch assemblies at the two opposite sides of the opening, each comprising a pilot fixed to the cabinet structure and a receptacle fixed to the cover panel which, when interengaged, position the cover panel over the opening, a spring-biased latch member pivotally mounted to the cover panel for interengagement with the pilot and a knob fixed to the distal end of the latch member and extending through a slot in the cover panel for disengaging the latch member from the pilot.
    Type: Grant
    Filed: March 29, 1979
    Date of Patent: February 17, 1981
    Assignee: Data General Corporation
    Inventors: Jerry C. Marino, Edward C. Fortini
  • Patent number: 4227725
    Abstract: A lock latch assembly for sliding closures (windows and patio doors) which is placed to limit the opening of such closures beyond an adjusted position and which prevents access through the closure opening. A simple integral notched plate as one element and a swiveled pin as a second element provides the structure, each held by fasteners which have substantially resistance in shear to any forcing of the closures.
    Type: Grant
    Filed: December 21, 1978
    Date of Patent: October 14, 1980
    Inventors: Morris W. Lindquist, Henry P. Hines
  • Patent number: 4194774
    Abstract: A garbage can lock made of three parts of metal material, installed in two units, second unit is installed on the opposite side of the garbage can body and lid in a manner as the first unit; since the second unit is indentical to the first unit herein of this invention in construction, arrangement of parts and total, I am herewithin describing only one unit, with reference to this, a more detailed description of the installation of the two components herein will be described hereinafter.
    Type: Grant
    Filed: September 11, 1978
    Date of Patent: March 25, 1980
    Inventor: Dorothy E. Kempka
  • Patent number: 4186952
    Abstract: A molded plastic latch assembly includes a housing adapted to receive a rotatable latch member. The inner end of the latch member includes bifurcated locking tabs received by an opening in the bolt. The locking tabs cooperate with an integrally molded locking pin. The latch member and housing include a cooperative detent construction integrally molded in the housing and latch member.
    Type: Grant
    Filed: July 27, 1978
    Date of Patent: February 5, 1980
    Assignee: Keystone Consolidated Industries, Inc.
    Inventor: Dwight W. Glass
  • Patent number: 4184212
    Abstract: Disclosed is a lift-front type hood adapted for use by firefighters which has an improved latching means. The hood comprises a helmet including a bump cap capable of fitting onto the top of the head of a wearer and a rigid liner attached to the bump cap and extending down from the front of the cap so as to be in front of the face of a wearer, the liner having an opening therein so as to allow a wearer to have vision. The hood further includes a shroud of flexible material attached to the exterior of the helmet and extending about the helmet so as to form a generally cylindrical skirt about the head and upper torso of a wearer, the shroud having an opening therein coextensive with the opening in the liner, and a shield plate comprising a sheet of transparent material covering the opening in the liner and shroud and attached to the liner by hinges.
    Type: Grant
    Filed: September 5, 1978
    Date of Patent: January 22, 1980
    Assignee: Globe Manufacturing Co.
    Inventor: J. Robert Bowman
  • Patent number: 4179144
    Abstract: A device for supporting a removable panel such as an insulating cover from an attic fan opening, the device consisting of a longitudinal hollow boss member adapted to be affixed to the wall adjacent the opening, the boss member having an integral leg portion for receiving a screw of the like by means of which the boss member is held to the wall, and an arm member pivotally affixed at the inner end to the boss member, the arm pivotal to extend parallel the boss member leg portion to engage and hold a panel in place, and pivotal in the opposite direction to enable the panel to be removed.
    Type: Grant
    Filed: November 21, 1977
    Date of Patent: December 18, 1979
    Inventor: Donald L. Henderson
  • Patent number: 4157704
    Abstract: A stove for use in an abode and which includes an air intake system and a viewing door. The air intake system inducts air into the stove from outside the abode and includes a draft control mechanism for controlling the amount of air introduced into the stove. The viewing door includes means for slidably receiving a spark screen, a viewing window and a heat shield, which elements can be used singly or in combination, as desired. A latching mechanism on the door enables the door to be closed with varying degrees of tightness. Alternative embodiments include use of the stove in a water heating system and fans convecting air over the stove outside surfaces.
    Type: Grant
    Filed: September 13, 1977
    Date of Patent: June 12, 1979
    Inventor: Ernest C. Zimmer
  • Patent number: 4153284
    Abstract: The invention relates to a pawl latch which comprises a bush having a head, and a latching arm spaced axially from the head and extending in a direction transverse to the axis of the bush. The latch includes at least one resilient leg positioned on a side of the bush opposite the latching arm and extending back towards the head. The latch is adapted so that it may be inserted in an aperture in a panel at an angle, latching arm first, and then pushed completely into the aperture until the underside of the head engages the front face of the panel and the resilient leg, having been deflected on being pushed through the aperture, springs out to engage the rear face of the panel. The latch is maintained in position in the aperture on the one side between the leg and the underside of the head and on the other side between the latching arm and the underside of the head.
    Type: Grant
    Filed: March 13, 1978
    Date of Patent: May 8, 1979
    Assignee: Dzus Fastener Co. Inc.
    Inventor: Andrew C. W. Wright
  • Patent number: 4148509
    Abstract: The hinged strap of a hasp assembly is mounted on the inside surface of a door near its opening edge, which strap is swingable between a position in the path of the door to allow it to be opened a limited distance and a position retracted out of the door-opening path. The door can be maintained in limited opening position by engagement of the hasp strap with a pivotable bar of a keeper assembly attached to the door frame. With the strap in the door-opening position rotated out of the path of the door, the pivotable bar can be rotated from the position in which it engages the strap for allowing the door to be opened a limited amount to a position in the path of the door to block any opening movement.
    Type: Grant
    Filed: March 7, 1977
    Date of Patent: April 10, 1979
    Inventor: Lyall A. McLennan
  • Patent number: 4121864
    Abstract: A latch assembly comprises a bolt unit mounted in a frame member of a door or window sash, and a bolt-driving unit installed on one side of the door or window sash. The bolt unit has a latch bolt supported by a rotatable and axially movable shaft, the bolt being pivotable between projecting and retracted positions by rotation of the shaft. The bolt driving unit includes an axially movable driver torque bar having on one end a driver that is normally disengaged from the shaft. The shaft has thereon engaging means normally held in engagement with a support frame of the bolt unit. Upon axial movement of the torque bar toward the shaft, the driver is moved out of engagement with the fixed engaging means into driving engagement with the shaft. The engaging means on the shaft is shifted out of engagement with the support frame by continued movement of the torque bar, whereupon the shaft is free to rotate about its longitudinal axis.
    Type: Grant
    Filed: March 29, 1977
    Date of Patent: October 24, 1978
    Assignee: Yoshida Kogyo K.K.
    Inventor: Tetsuro Kagoura
  • Patent number: 4105230
    Abstract: A lock for pivotal flaps, covers, or the like, especially for glove compartments in motor vehicles, with a curved locking member preferably rotatably supported at a pivotal part against the force of a spring, which in the locking position cooperates with its free end with a fixed locking member. The cooperating ends of the two locking members, as a result of an approximately rectangularly bent-off configuration in the form of an "L" or "U" effect a horizontal and vertical inter-engagement so that a mutual support in these two directions does not permit a disengagement of the ends of the locking members either in the upward or an opening direction of the pivotal flap.
    Type: Grant
    Filed: March 3, 1976
    Date of Patent: August 8, 1978
    Assignee: Daimler-Benz Aktiengesellschaft
    Inventors: Rolf Amann, Hans Benda, Albert Dietterle
  • Patent number: 4092037
    Abstract: A door-locking device is provided which includes a first member which is adapted to be fixedly attached to a floor adjacent to the door to be locked and is attached to the floor at a point where the first member is out of the path of movement of the door as it moves between its open and closed positions. A second member is pivotally connected to the first member and is movable between a locking position and a retracted position relative to the door to be locked. When in the locking position, the second member is pivoted into the path of movement of the door to prevent the door from being moved from a closed position to an open position. When it is desired to unlock the door, the second member is pivoted upwardly relative to the first member to its retracted position where the second member is out of the path of movement of the door to allow its movement from the closed to the open position.
    Type: Grant
    Filed: June 2, 1977
    Date of Patent: May 30, 1978
    Inventor: Albert T. Greenwald
  • Patent number: 4083591
    Abstract: The gate latch is intended for use with gates which are capable of swinging through an arc of approximately 180 degrees. The latch finger secured to the gate may therefore pass through the latch if desired. The latch includes a hollow body secured to the gate post. A slot in the front wall of the body allows the latch finger to pass therethrough and one or more pawls are rotatably mounted in the body so as to trap the latch finger.In one embodiment, a pair of pawls is provided and the latch finger engages one pawl which rotates out of its path and the latch finger is trapped between the pawls as the pawl returns to its rest position due to the action of gravity.In another form of the invention a single rotatable pawl has a notch to engage the latch finger as the gate swings to the closed position. The pawl is then held there by co-operating means on the pawl and on the lower wall of the latch until it is released manually.
    Type: Grant
    Filed: September 1, 1976
    Date of Patent: April 11, 1978
    Inventor: Rudolph E. Parisien
  • Patent number: 4082329
    Abstract: A latch for sliding and folding doors including confronting plates mounted on the edge of a door and on a door jamb respectively. One plate has an opening and pivotally mounts a retainer or actuator. The other plate has a latching projection receivable in the opening of said first plate and undercut to accommodate reception of a portion of said actuator in one pivoted position thereof to prevent opening of said door.
    Type: Grant
    Filed: September 30, 1976
    Date of Patent: April 4, 1978
    Inventor: Richard K. Haines
  • Patent number: 4040653
    Abstract: A controlling device for stopping the drawing out of drawer type unit cases holds the unit case at a predetermined position by interlocking a latch with one of a pair of interlocking holes of a partition upon turning an operating shaft through a predetermined angle. The operating shaft has a square part and higher step parts at both sides of the square part and a U-shaped leaf spring is contacted with the square part so as to control the free movement of the operating shaft.
    Type: Grant
    Filed: June 17, 1976
    Date of Patent: August 9, 1977
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventor: Masaru Takahashi
  • Patent number: 4029348
    Abstract: An improved self-locking device for locking a movable structural member to a stationary structural member, or to another movable structural member, or for unlocking the same, comprising a rotatable self-locking cam and an actuating means therefor; the rotatable self-locking cam being rotatably mounted on a first structural member and having (1) an arcuate surface thereon, capable of preventing movement of a movable structural member in a first or opening direction, and (2) a cam surface thereon, capable of moving the movable structural member in the first or opening direction; and the actuating means being capable of rotating the self-locking cam in an angular direction whereby the cam surface contacts an ear on the movable structural member to forcibly move it in the first or opening direction, while the arcuate surface is being simultaneously moved out of the way of the movable structural member, due to the angular rotation of the self-locking cam, to permit the movement of the movable structural member in
    Type: Grant
    Filed: April 13, 1976
    Date of Patent: June 14, 1977
    Assignee: Edson Tool and Manufacturing Company, Inc.
    Inventors: Joseph E. Prather, Ramzi A. Khalifa
  • Patent number: 3977711
    Abstract: This invention relates to a sash lock for swinging and/or sliding enclosure windows and doors and the like. The lock consists of a cam rod adapted to be arranged relative to hingedly swinging or sliding windows and mounted in the window wall opening so as to be engageable with edges thereof. The rod is inset to provide a lip extending longitudinally and spirally thereof whereby it flatly engages a window edge when rotated by an operating lever at one end thereof to lock the window in closed position.
    Type: Grant
    Filed: January 12, 1976
    Date of Patent: August 31, 1976
    Inventor: Stephan Lajcak
  • Patent number: 3966245
    Abstract: A multioperational latch is disclosed, in the preferred form, as including a member pivotally mounting a latch member to the inside surface of a door and a member mounted in a stationary position with respect to the door frame which receives and removably captures an enlarged end of the latch member. Therefore, the latch can be placed in a first, privacy position to prevent the door from being moved from its closed position, in a second, latch position where the enlarged end of the latch member is captured within the receiving member to hold the door in its open position, and in a third, inoperative position allowing the door to be freely moved either to or from its open or closed position.
    Type: Grant
    Filed: January 30, 1975
    Date of Patent: June 29, 1976
    Inventor: Luigi G. Losenno
  • Patent number: 3934925
    Abstract: To meet the legal requirements for bus safety, all locking devices on entrance and emergency doors must be removed before the bus is placed in service. For that purpose, the ignition key is made part of a simple locking assembly that is used to lock the emergency door. The driver's obtaining the key to operate the bus engine, insures the unlocking of the emergency door. The unlocking of the entrance door is accomplished by an inside pivoted cam assembly, actuated by a locking handle on the outside of the bus. The unlocking pivoted cam assembly inside the bus, then entirely disengages the door controlling mechanism, which then has normal operating freedom.
    Type: Grant
    Filed: February 14, 1974
    Date of Patent: January 27, 1976
    Inventor: Joseph T. Fetsch