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US 5,051,148 AGranted
Device for welding synthetic resin sheeting
OwnerWilfried Reschinventor
Life of this patent
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OwnerWilfried Reschinventor
Estimating the term…
A welding device for joining overlapping lengths of thermoplastic synthetic resin along the margins comprises two welding rollers (8) and (9). One of the welding rollers (9) is arranged at a lever (7) pivotably supporting at the base member (1) of the device, this lever being associated with a setting means (24). The pressure exerted by the setting means (24) on the lever (7) is detected by way of a pressure sensor (23) and fed to a control and/ or display unit. The device exhibits a wedge-shaped heated member (14) associated with the gap between the two welding rollers (8) and (9), this member being displaceably guided in the base member (1). The wedge-shaped heated member (14) is supported at a support, by way of which it is adjustable in the base member (1), via a pressure sensor (43) transmitting signals corresponding to the contact pressure of the wedge-shaped heated member (14) against the sheets of synthetic resin entering in between the welding rollers ( 8) and (9) to a control and/or display unit. Furthermore, a temperature probe is provided in the wedge-shaped heated member (14) which transmits its signals to a thermostat control. The energy supply to the welding device is effected by way of a portable accumulator via a cable (50).
Device for welding lengths of synthetic resin overlapping each other along the margin, by means of a wedge-shaped heated member (14) directed toward the gap between welding rollers (8, 9) wherein the wegde-shaped heated member (14) is arranged on a support (33) displaceably guided on a guide means (34) said guide means (34) being attached to a base member (1) of the device, one welding roller (8) being supported at the base member (1) and the other welding roller (9) being supported at a lever (7) mounted at the base member (1) to be pivotable about an axle (6) in parallel to the axes of rotation (12, 13) of the welding rollers (8, 9), wherein wheels or casters (3, 4, 5) are provided at the base member (1) and at the pivotably arranged lever (7), the device being movable by way of these wheels or casters, and wherein each welding roller (8, 9) is coupled with a drive motor (15, 18), characterized in that the lever (7) carrying one welding roller (9) is connected with an arm (22, 50) which is preferably perpendicular to this lever;
Dependencies are inferred from the claim text.