A pressure screen comprises an outer housing with a pulp inlet, and accepts and rejects outlets and an advantageous mount of a stationary screen drum (screen cylinder) in the housing. The screen drum is secured at an upper end flange with bolts to an intermediate ring and supported via the intermediate ring by the housing. A rotating rotor is disposed inside the screen drum. The bottom end of the screen drum is provided with at least one groove with at least one primarily flexible material ring ...

A screen intended for screening pulp chips or equivalent, wherein two or more screen baskets are fitted one above the other. At least one of these baskets consists of two or more screw spirals journalled to the screen basket, the spiral wings of said spirals being fitted as interlocking in between each other. The outer circumference of each wing extends to the proximity of the mantle face of the core part of the adjoining spiral. The adjoining spirals are opposite-handed and have opposite direct...

A screen for extending between two surfaces, for example, a floor and a ceiling, the screen comprising a sheet of flexible material, pairs of optionally interengageable battens and support means, the support means being biased to urge the pairs of battens against the surface retaining the sheet extended between them. If the battens are engaged, they may be pivotable about the means engaging them.

A screen particularly suitable for use in deep well comprises a reinforcing member (2) of a generally cylindrical configuration, a plurality of support rods (3) arranged on the outside of the reinforcing member (2) in the axial direction thereof and a wire (4) wound helically on the outside of the support rods (3). A multitude of slits (2b) continuous in substantially the circumferential direction of the reinforcing member (2) are formed at a predetermined pitch in the reinforcing member (2). Th...

A screen is constructed to have a screen case, a support member fastened to one side of the screen case and a reel pivotally mounted inside the screen case and rolling up a screen body. The reel has a flat inside stop face and a plug member is fixedly fastened to one end of the reel. An axle is suspended inside the reel, the axle having a first end fixedly fastened to the screen case and a second end fastened pivotally with the plug member. A spring member is sleeved onto the axle inside the ree...

A screen for use in a work environment providing a generally planar surface is disclosed. The screen includes a frame providing an outer perimeter tending to a first shape. The screen further includes a web at least partially circumscribed by the frame and having a shape at least partially defined by the shape of the outer perimeter of the frame. The screen also includes a mounting assembly configured to attach the frame to the surface.

The invention relates to a screen (300), which is particularly intended for a functional unit measuring heart rate from a user's chest. Electrodes (304) of the functional unit and preferably also an electric circuit (306) are protected against extracorporeal interference by the screen (300), which closely follows the electrode (304) or a supporting structure (40, 50, 60, 70) at least at the electrode (104, 204, 304, 402, 502, 602, 702).

A screen assembly is described which comprises a flow channel along which sewage is intended to flow, in use, a continuous flexible belt entrained around roller or wheel means and projecting into the channel, and means for driving the belt. The belt is perforated such that relatively large solids carried along the flow channel in the sewage are trapped by the belt adhering thereto due to a pressure differential across the belt. Movement of the belt lifts such solids from the flow channel. The be...

A screen saver (10) capable of attachment to a screen door screen (14) of a screen door. The screen saver (10) has an inner member (12A) and an outer member (12B) attached to each other through mesh of a screen door utilizing hook and loop. The inner member (12A) having an inner member front (12AA) and an inner member back (12AB). The inner member back (12AB) further comprises inner member back fastening means (12ABA) securely affixed thereon. The outer member (12B) having an outer member front ...

The present invention is a screen frame and screen positionable in most window frames and door frames. The invented screen frame is comprised of four screen frame segments joined together at corners to form a generally rectangular or multi-sided screen frame. Corner joint inserts are inserted in each corner of the four screen frame segments and the inserts are spot welded to adjoining screen frame segments to provide a sturdy and rigid screen frame. The screen frame segments are preferably stain...