Sfs Industrie Holding Ag

Cws-boco Supply Ag

Felix Scheiwiller

Norbert Koeppel

Helmut Oesterle

Peter Kouwenhoven

Markus Erb

Marco Zund

A valve for opening and closing a liquid vessel or pouch, which includes a valve body having a central axis, top and bottom sides arranged transversely with respect to the central axis, and a passage opening that extends through the valve body coaxially from the top side to the bottom side. A closure element can be pressed into the passage opening by a spring element coaxially with respect to the central axis from the underside such that the passage opening can be closed in a liquid-tight manner. The closure element includes a first sealing lip which can be pressed into the passage opening with an interference fit Pand, axially behind said first sealing lip, a second sealing lip, which can be pressed into the passage opening with an interference fit P, wherein Pis a stronger interference fit than P

Valve for liquid vessels

A screw ( ) is provided with a shank ( ), a head ( ) and a boring part ( ). The shank ( ) is provided with a thread ( ). The head ( ) has a shoulder ( ) disposed at an axial distance (B) from the bearing face ( ), while a portion ( ) adjoining the shoulder on the shank side is provided with a tool drive ( ). The head ( ) of the screw can therefore be seized in axially secure manner by a tool in the region of the shoulder ( ), and this tool can then simultaneously transmit the necessary torque in the region of the tool drive ( ) as well.

Screw with tamper-proof head

In a screwing element ( ) for accommodation of a fastener head ( ) of a fastener ( ) there are provided jaws ( ) for seizing the fastener head. The jaws ( ) can be axially inserted into or withdrawn from the holder ( ), wherein the jaws in the withdrawn position can be pivotably forced apart into open position. At their free end the jaws are provided with incisions ( ) and, adjoining these, with gripper-like parts ( ) jutting outwardly toward the central axis for the purpose of engaging mechanically and/or frictionally with the fastener head ( ) from behind.

Screwing element

A socket and/or insert ( ) for accommodating a fastener head is inserted in a screwing attachment ( ). The socket and/or insert ( ) comprises two jaws ( ) which engage in a tubular holder ( ) in which they are locked against rotation. The jaws can slide in axial direction relative to the holder ( ). In their one end position, the jaws ( ) can be forced apart in radial direction for insertion of a fastener head. Under the effect of axial force in the direction of the arrow ( ), the jaws ( ) are pressed into the holder ( ), whereby the jaws are necessarily squeezed toward each other in radial direction by virtue of the tapered camming faces ( ), so that the inserted fastener head becomes firmly clamped.

Nut for accommodating the head of a fastening element or for inserting into the same

In a screwing element (,) for accommodation of a fastener head (,) of a fastener (,) there are provided jaws (,) for seizing the fastener head. The jaws (,) can be axially inserted into or withdrawn from the holder (,), wherein the jaws in the withdrawn position can be pivotably forced apart into open position. At their free end the jaws are provided with incisions (,) and, adjoining these, with gripper-like parts (,) jutting outwardly toward the central axis for the purpose of engaging mechanically and/or frictionally with the fastener head (,) from behind.

Growing community of inventors

Diepoldsau, Switzerland

Felix Scheiwiller