Patents Represented by Attorney Arthur A. March
  • Patent number: 4010769
    Abstract: A valve includes a plunger which is movable by actuating means such as a solenoid coil, air pressure or other means to move a valve member toward and away from a valve seat. The fluid flow area of the valve is sealed from the actuating means by the diaphragm, O-rings or other forms of sealing structure. In order to insure against leakage past the diaphragm or seal and especially against leakage into the actuating means, the construction includes another diaphragm or seal spaced from the first seal providing a seal space between the first and second diaphragms or seals. In the event of leakage past the first sealing means, flow of the liquid into the space between the first and second sealing means causes an outward flow of the fluid through a detecting passage which thereby provides means which disclose the leakage past the first sealing means so that the first sealing means can be immediately replaced before any damage to the actuating means or to the system itself.
    Type: Grant
    Filed: November 25, 1974
    Date of Patent: March 8, 1977
    Assignee: Plast-O-Matic Valves, Inc.
    Inventors: Bruce L. De Lorenzo, Daniel J. McCarthy
  • Patent number: 4000838
    Abstract: Container with pull-tab opener and score line opening area type lid, having a fan-folded member within the container and secured at its edge portions to the underside of the lid in the opening area marginal portions and at its central portion to the underside of the lid in the corresponding central pull-tab opening area and being freely disposed in corresponding fold portions disposed between its edge portions and central portion and folded to a collected position substantially adjacent to the lid, whereby when the tab opener is lifted to provide the lid opening, the attendant displaceable portions of the fan-folded flexible member are outwardly drawn therewith to form a pouring spout for the container.
    Type: Grant
    Filed: June 11, 1975
    Date of Patent: January 4, 1977
    Inventor: Clayton Bogert
  • Patent number: 3995462
    Abstract: A structure for preventing the movement of a vehicle by preventing the movement of the gear shift rod. A locking unit is mounted in any suitable place within the vehicle and comprises a clamp which is connected onto a linkage rod to the gear shift and which is normally freely movable with the movement of the gear shift. The clamp unit also comprises a plate portion having an aperture into which a cable having a lock pin on one end can extend when it is desired to prevent any movement of the clamp. The cable is able to extend the pin into and out of the aperture and clamp from a place remote from the clamp itself by a plunger arrangement which is normally extended in an unlocked position but when depressed or urged inwardly causes the entry pin at the other end to move into the aperture and prevent movement of the clamp and thereby prevent movement of the gear shift. A key may be turned to maintain the plunger in locked position against the action of a spring normally urging the unit into unlocked position.
    Type: Grant
    Filed: December 10, 1975
    Date of Patent: December 7, 1976
    Inventor: George W. Boyle
  • Patent number: 3988810
    Abstract: The present invention relates to a jamming cleat for quickly securing the end of a rope, cable or cord. Such a cleat is disclosed in my U.S. Pat. No. 3,574,900. In that known device one end of a cord is held between the walls of a V-shaped groove and the walls are formed with ridges sloping in such a way that the greater the load on the cord the more securely is the cord held in the groove. In the present invention means are provided whereby the cord may be passed around an object and then both ends secured in the cleat. For this purpose the cleat is formed with a fairlead serving to hold the cord in a position such that one end can be engaged in the V-groove with greater certainty and also with an anchorage for the other end of the cord.
    Type: Grant
    Filed: January 20, 1975
    Date of Patent: November 2, 1976
    Inventor: Reginald John Emery
  • Patent number: 3988655
    Abstract: Apparatus to control the direction of movement of a mechanism over a surface. The surface is provided with a plurality of substantially parallel strips of conductive material alternately connected to opposite terminals of a source of current supply. The mechanism has a plurality of conductive discs or wipers so disposed that at least two of the wipers contact a pair of the conductors which are each connected to oppositely disposed terminals. The mechanism also has driving means such as wheels for movement and a motor engaged through the wipers for propelling the wheels over the surface. The mechanism can move forwardly, rearwardly, laterally or in a zig-zag motion. Control means are provided between the motor and the driving means so that the direction of movement may be varied in response to the voltage across the alternate conductors engaged by the wipers.
    Type: Grant
    Filed: October 21, 1974
    Date of Patent: October 26, 1976
    Inventor: Henry A. Sherwood
  • Patent number: 3988754
    Abstract: This invention is directed to a photographic camera having a slit shutter which utilizes two cover systems which operate above the plane of the image. These systems are movable perpendicularly to the direction of movement of the film within the camera. Each cover system comprises displaceable segments movable relative to each other. These can be brought into and out of overlapping position at a corresponding opposed end of the image window. When open, they extend across the window to cover the window, and when closed they recede into overlapping position to uncover the window. While broadly speaking, the so-called "slit shutter" type of shutter has been used, the herein described proposal for providing the open and closed systems is unique.
    Type: Grant
    Filed: May 28, 1975
    Date of Patent: October 26, 1976
    Assignee: Prontor-Werk, Alfred Gauthier GmbH
    Inventors: Waldemar T. Rentschler, Franz W. R. Starp
  • Patent number: 3984853
    Abstract: The described invention relates to a focal-plane shutter for a photographic camera. This shutter is a slide system having a plurality of parts which move in timed sequence during exposure. The parts include a plurality of sliders which are displaceable relative to one another.This invention provides a form of focal-plane shutter for a photographic camera wherein there are slide systems which function during exposure in timed succession with each system having a plurality of slides which are movable relative to one another. Each of the slide systems has a driven element which is rectilinearly guided by a single rotatably mounted part held in operational engagement with each individual slide system in such a manner that the slide participating in forming the focal-plane slit width engages its driving part at a point which is at the maximum possible radial distance from the axis of rotation.
    Type: Grant
    Filed: March 10, 1975
    Date of Patent: October 5, 1976
    Assignee: Prontor Werk
    Inventors: Reinhold Bott, Dieter Rittmann
  • Patent number: 3979001
    Abstract: The invention provides a protective or safety closure which inhibits inadvertent opening of the container. The neck portion of the container itself is provided with threads along which a notched portion, for example, in the form of serrations, is provided. The interior of the cap itself is also provided with threads which cooperatively engage the threads in the neck portion. Along the threads in the cap a notched portion, such as in the form of serrations, is provided to engage the serrations of the neck portion to lock the cap in position. Resilient members are also provided on the underside of the cap portion to engage the top of the neck portion which perform the function of bringing the notched portion in the cap into engagement with the notched portion on the neck of the container.
    Type: Grant
    Filed: November 29, 1974
    Date of Patent: September 7, 1976
    Inventor: Clayton Bogert
  • Patent number: 3973842
    Abstract: This invention relates to camera apparatus having a mechanism containing transparent slides for projection, and, with this, there is provided a mechanism for including with these slides related sound records for reproduction concurrently with the pictorial representations.
    Type: Grant
    Filed: March 10, 1975
    Date of Patent: August 10, 1976
    Assignee: Pronton-Werk Alfred Gauthier GmbH
    Inventor: Hans Woerner
  • Patent number: 3973343
    Abstract: A picture frame includes an outer glass or plastic enclosure and an inner mounting base or board made of a fibrous or porous material such as fiberboard, cork and the like, to facilitate the mounting of picture elements either by pressure or by pin fasteners thereon. In one embodiment, the frame includes an outer rectangular glass or transparent plastic panel, an intermediate panel of cork or fiberboard or other material and an end panel of a backing board or of glass or plastic which are held in assembly by screw bolts, which are secured at their ends by bolt heads which also engage on the picture frame supporting bracket. Various holders are associated with the fiberboard or mounting board which provide ornamental pin elements which may be used for holding the pictures in an oriented position. The frame may however be used without these as the pressure of the screw or bolt will hold pictures in place under the glass or transparent plastic.
    Type: Grant
    Filed: April 21, 1975
    Date of Patent: August 10, 1976
    Inventor: Miriam O. Tolfsen
  • Patent number: 3935581
    Abstract: The invention is related to a sector system capable of providing lens elements of different aperture held in different support means. Exposure of a film through the lens is determined by the opening and closing of a sector plate system and the time and extent of opening and closing is appropriately controlled by changing the position of the drive means relative to the lens forming means. In this way the sector plates for exposing the camera film to light passing through the lens travel different distances which depend upon the light aperture required in order that the exposure shall be consistent with the lens aperture and its speed and at least approximately equal to the overlap and overswing phases of the sector system.
    Type: Grant
    Filed: February 9, 1973
    Date of Patent: January 27, 1976
    Inventor: Franz W. R. Starp