Transparent Patents (Class 220/377)
  • Patent number: 4486018
    Abstract: A puzzle assembly having a plurality of pieces which are identical and which interfit without interlocking are assembled in a recess of the base of a container and the container is closed by a cover hinged to the base. When the cover is closed, the puzzle pieces are disposed between top and bottom walls formed respectively on the cover and the base. The pieces are made of a resiliently yieldable material and their normal thickness is greater than the spacing between the walls when the cover is closed so that the pieces are clamped between the walls and are held against sliding even though only some of the pieces have been assembled. The puzzle has a design on both sides and the top and bottom walls are transparent so that both designs may be viewed with the cover closed.
    Type: Grant
    Filed: March 11, 1983
    Date of Patent: December 4, 1984
    Inventor: Claude E. Keller, Jr.
  • Patent number: 4469238
    Abstract: A protective cover arrangement for a computer or a similar machine which has a panel provided with an opening through which access may be had to switches or similar control or actuating devices, this opening being surrounded at least along a part of its periphery by an inwardly extending flange, includes a cover and a clip member on which the cover is mounted for pivoting and which is clampingly mounted on the flange. The clip member includes two arms which clampingly confine the flange between themselves. One of the arms is provided on a clip component, while the other arm is a portion of a hinge component that is mounted on the clip component for adjustment of its position relative thereto, by two screws passing through orifices at least some of which are elongated to provide for the adjustment. Another hinge component is connected to the cover and is pivotably mounted on the first-mentioned hinge component by a pivot pin.
    Type: Grant
    Filed: January 30, 1984
    Date of Patent: September 4, 1984
    Inventor: Lawrence A. Ranalli
  • Patent number: 4436213
    Abstract: There is provided a tamper evident container seal comprising a normally transparent polymer film which can be rendered translucent by stretching and transparent by relaxing. There is also provided a polymer film useful as a seal of the same type of film which bears an image which is not readily visible when the film is relaxed, but becomes readily visible when the film is stretched.
    Type: Grant
    Filed: November 5, 1982
    Date of Patent: March 13, 1984
    Assignee: Minnesota Mining and Manufacturing Co.
    Inventors: Fred R. Paul, Jr., James S. Mrozinski
  • Patent number: 4422560
    Abstract: A frypan lid comprises an upper transparent plastic cover and a lower heat resistant plastic collar fixedly connected to the transparent cover and adapted to fit on a rim of the frying pan. The collar acts as a heat insulating body between the cover and the frying pan so as to prevent heat generated by the frying pan during use from adversely affecting the cover. The frypan lid prevents grease or the like from spattering out over the area immediately surrounding the pan, while at the same time enabling one to view the contents of the pan. Since both the cover and collar are made of plastics, the lid is also light-weight and practically non-breakable.
    Type: Grant
    Filed: August 20, 1982
    Date of Patent: December 27, 1983
    Assignee: Toastess Inc.
    Inventor: Harry Solomon
  • Patent number: 4407504
    Abstract: An amusement device consists of a box-like structure having a transparent lid which may be opened through the proper positioning of a plurality of tumblers contained on an exterior face of the structure. The transparent lid is of a spring biased construction to facilitate its opening once the proper combination on the tumblers has been set, and a troll-like figurine is releaseable from an interior portion of the structure upon an opening of the lid. If desired, the troll may be provided with an award deliverable to the bearer. Further, the combination required to open the structure is changeable through the use of selectively positionable gears associated with the tumblers.
    Type: Grant
    Filed: July 22, 1981
    Date of Patent: October 4, 1983
    Inventor: Richard Popov
  • Patent number: 4406457
    Abstract: A pinball machine having multi-level playfields with a transparent window mounted in at least an upper level playfield to allow observation therethrough to a lower level playfield. The window is mounted on a ledge in an opening in the upper level playfield with compressible rings and screws extending through the window, rings and ledge to compress said rings until the window is in the same plane as said playfield.
    Type: Grant
    Filed: July 31, 1981
    Date of Patent: September 27, 1983
    Assignee: D. Gottlieb & Co.
    Inventors: Algimantis J. Gabrius, John W. Buras
  • Patent number: 4364666
    Abstract: A machine for mixing and cooling batches of dry powder ingredients and water comprising, a horizontal mixing cylinder open at one end and having a rotary mixer in the cylinder. Refrigerating mechanism is provided for cooling the walls of the cylinder and for maintaining the mixing cylinder temperature in a range below F. and above F., a door for closing said one end of the cylinder. The mixing cylinder has a dry powder ingredient inlet passage extending through the cylindrical side wall at the top of the cylinder at a location spaced from said one end. The door has a mix dispensing outlet communicating with the lower portion of the cylinder and a dispensing valve for controlling flow through the dispensing outlet and the door has a water inlet communicating with the upper portion of the cylinder and a funnel at the outside of the door extending upwardly to a level above the cylinder.
    Type: Grant
    Filed: October 3, 1980
    Date of Patent: December 21, 1982
    Assignee: Beatrice Foods Co.
    Inventor: Richard M. Keyes
  • Patent number: 4335825
    Abstract: The invention is related to a reservoir tank receiving liquid therein and having a peep hole in a side wall for visually inspecting the interior of the tank. The peep hole is formed by a cup-shaped member having a transparent bottom wall, a cylindrical side wall sealingly fitted into an opening formed in the side wall of the reservoir tank, and a plurality of retaining portions formed adjacent the open end portion of the cup-shaped member for engagement with the peripheral edge of the opening.
    Type: Grant
    Filed: July 21, 1980
    Date of Patent: June 22, 1982
    Assignee: Tokico Ltd.
    Inventor: Takeshi Sakazume
  • Patent number: 4311492
    Abstract: A soft, flexible cover which is adapted to be attached over the open top of a container has a transparent section for viewing the contents of a container with which the cover is used, a filter section for removing entrained matter from air entering the container, and a tubular section for sealable attachment to a suction tube extending therethrough into the container.
    Type: Grant
    Filed: September 22, 1980
    Date of Patent: January 19, 1982
    Inventor: Frank Eltvedt
  • Patent number: 4100613
    Abstract: The center portion of the lid for a high speed food processing apparatus is flexible, preferably transparent and is supported by a rigid lid support member. The outer portion of the lid is stiff so that the center portion acts as a spring when compressed by the support member onto the edge of the bowl of the food processing apparatus.
    Type: Grant
    Filed: June 6, 1977
    Date of Patent: July 11, 1978
    Assignee: Hobart Corporation
    Inventor: Raymond P. Shaeffer
  • Patent number: 4069935
    Abstract: A screw-on child resistant double cap closure in which the inner screw cap has printing and coloration on the exterior surface of its crown and the cover is transparent. The cover and the screw cap include two halves of a selectively engagable, normally disengaged, torque coupling.
    Type: Grant
    Filed: May 6, 1977
    Date of Patent: January 24, 1978
    Assignee: Ferdinand Gutmann & Co.
    Inventor: Alfred H. Hampel
  • Patent number: 3963120
    Abstract: A container for prepackaging materials, as for example silver alloy and mercury for dental amalgam, which must be kept separate until just prior to combination and use is disclosed which comprises two chambers. During storage of the materials, the two chambers are separated by a barrier to prevent mixing of the ingredients therein. Combination of the ingredients is effected by twisting the top portion of the container to align a conduit therein with an opening in the barrier between the two chambers. After the material in the upper chamber flows into the lower chamber, the top portion is twisted back to close off the opening and the materials are mixed together by agitating the container.
    Type: Grant
    Filed: February 7, 1975
    Date of Patent: June 15, 1976
    Assignee: Johnson & Johnson
    Inventor: Alan J. Perfect
  • Patent number: 3951301
    Abstract: A sight glass assembly comprising a housing having an opening therethrough, the opening having an enlarged section providing a shoulder, a face plate having an opening registered with the opening in the housing, mounted on the housing in opposed relation to the shoulder, a lens disposed in the enlarged section of the opening in the housing and interposed between the shoulder and the face plate, a resilient packing disposed in the enlarged section of the opening in the housing, between the lens and the housing structure, said face plate having a flange portion projecting into the enlarged section of said housing opening and engaging said resilient packing, and means for securing said face plate to said housing to apply a compressive force on the packing, causing the packing to expand laterally to provide a compressive force about the periphery of the lens.
    Type: Grant
    Filed: November 8, 1974
    Date of Patent: April 20, 1976
    Inventor: Charles E. Meginnis
  • Patent number: D267700
    Type: Grant
    Filed: August 22, 1978
    Date of Patent: January 25, 1983
    Assignee: Partex Fabriksaktiebolag
    Inventor: Lars Skarin