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| Number | Title | Issue Date |
| 3983632 | Contour transfer device The disclosure relates to a contour transfer device which may be used to transfer contours such as those found on the bodies of automobiles so that a proper contour from one side may be transferred to an opposite side of the vehicle which has been damaged... | 10/05/1976 |
| 3982471 | Seal in pump piston intermittently permitting conduction of pump fluid An improvement in liquid pumps having a piston with a packing surface which reciprocates in contact with a cylinder, comprising means for increasing the life of the packing by transmitting thereto a small portion of the liquid being pumped, for absorption... | 09/28/1976 |
| 3979129 | Valve construction and improved parts for the same or the like A valve construction having a valve bonnet provided with opposed ends and an external peripheral surface intermediate those ends, the internal peripheral surface having locking recesses formed therein. A cover member is telescoped over the valve bonnet an... | 09/07/1976 |
| 3977737 | Seal assembly for rotating shaft A mechanical seal assembly for a rotating shaft passing into a pressure vessel and being axially adjustable is formed by a first seal face rotating with the shaft and engaging a fixed seal face. This latter face is supported in a housing which is axially ... | 08/31/1976 |
| 3971450 | Well drilling tool There are disclosed several embodiments of a well drilling tool which is adapted to be connected to the lower end of a drill string above the drill bit, and which comprises inner and outer members which are rotated with respect to one another by a motor b... | 07/27/1976 |
| 3964662 | Sealing apparatus A seal suitable for use in a barrel-type rotary machine having an inner casing mounted within an outer casing to provide a chamber therebetween which is pressurized by exposing the chamber to high pressure fluids processed in the machine. One end of the c... | 06/22/1976 |
| 3963014 | Fuel injection pump for internal combustion engines A fuel injection pump for internal combustion engines includes a housing, which defines an elongated chamber, within which serial pumps including, in respective cylinders, pump pistons driven by a cam shaft via respective cams. The elongated chamber is cl... | 06/15/1976 |
| 3951420 | Elastic roll ring A roll ring for sealing socket-type joints is provided with a circumferentially extending lip having an abutment surface which is positioned to lie in a plane extending through the circumferential axis of the roll ring. The abutment surface tightly engage... | 04/20/1976 |
| 3948498 | Fluid filled spring damper including flexible end wall A cap member is fitted in a liquid-tight fashion to the open end of a cylinder. The cap member has a flexible member made of rubber etc. A piston rod connected to a piston within the cylinder is slidably inserted through the cap member. When an impact loa... | 04/06/1976 |
| 3945650 | Lip seal assembly A lip seal assembly establishing a sealed relationship between two spaced relatively movable members wherein one of the members has a pair of adjacent annular recesses of different effective diameters. An annular lip seal element of resilient material is ... | 03/23/1976 |
| 3938709 | Gas pressure actuated plastic squeeze dispenser and valving means therefor A plastic material squeeze tube dispenser comprising an elongated conical housing having an opening at one end through which is passed in a sealed manner the nozzle end of a squeeze tube containing a plastic material to be dispensed therefrom. A handle bo... | 02/17/1976 |
| 3937442 | Gate valve having O-ring seal In a knife gate valve, an elastomer O-ring is held in an annular groove in a face of a valve seat by cotter pins having their eyes embedded in the O-ring and their shanks extending through the valve seat and clinched over. The eyes are adhered to the O-ri... | 02/10/1976 |
| 3933358 | O-Ring port contour sheath and seal A frusto-conical sheath of a heat resisting, non-porous, extrudable, low coefficient of friction material for sheathing the frusto-conical contour of a hydraulic port part to receive an O-ring when a mating fitting is screwed into the port part.... | 01/20/1976 |
| 3930657 | Device for sealing between preferably movable parts A device for producing a seal between movable and/or stationary parts, such as a piston and a cylinder particularly under conditions of high fluid pressures, comprises a sealing ring having an O-ring configuration and fabricated of a material such as rubb... | 01/06/1976 |
