| Patent Number |
Title Of Patent |
Date Issued |
| 4223896 |
Sealing ring |
September 23, 1980 |
| A sealing ring to be received by an annular groove in one of two pipe elements which can be inserted one into the other, to seal between the pipe elements. The sealing ring comprises two integrated portions of different hardnesses, forming two surfaces enclosing an obtuse angle one o |
| 4209597 |
Process for extruding and cross-linking olefin polymers, diolefin polymers, and copolymers of ol |
June 24, 1980 |
| A process is provided for extruding and cross-linking olefin polymers, diolefin polymers and copolymers thereof with other olefins, diolefins, or monomers copolymerizable therewith, using as the cross-linking agent an azo compound of the formula: ##STR1## wherein R.sub.1, R.sub.2 |
| 4209093 |
Card box |
June 24, 1980 |
| A card box for storing cards or the like includes a tray-like rectangular box member for storing cards and movable, tiltable supports which can be inserted into a series of holes or recesses provided lengthwise and widthwise along the edges of the bottom of the box. Pins at the opposite |
| 4202568 |
Tube joint |
May 13, 1980 |
| In a joint between two tubes having a corrugated outer wall and a smooth or corrugated inner wall the tubes are cut to form each an open annular space between said walls at the end. A sealing ring is received by the spaces, and the tubes are pressed against the sealing ring by means of a |
| 4190910 |
Plumbing apparatus including means for producing a water-plug effect in sanitation appliances |
March 4, 1980 |
| A sanitation appliance such as a water-closet or the like equipped with a generally vertically extending outlet pipe is provided with a resilient diaphragm mounted within said pipe and extending thereacross to stem the flow of flushing water passing through said pipe until a sufficient |
| 4171150 |
Mountable storage furniture |
October 16, 1979 |
| A kit composed of a plurality of parts capable of being assembled without tools into a cubical cabinet includes four wall panels made of injection molded plastic which may be joined together to form four sides of a six sided cubical cabinet. Each of the four wall panels is formed with |
| 4077828 |
Machine for manufacturing reinforced tubes |
March 7, 1978 |
| In a machine for manufacturing reinforced tubes there are provided individually rotatable members supplying reinforcement threads around the tube. |
