A wrapping unit that wraps a container pack with a piece of film as it moves along a container-transport path includes a linear transporter having an electromagnetic linear drive. This linear transporter circulates movement elements in a common direction around a closed movement-path. Each of these movement elements has a gripping head arranged thereon.

The present invention relates to a wrapping device (1) configured to wrap a bale (12) with a wrapping material (2), wherein the device (1) comprises a wrapping unit (3) which is rotatable clockwise and counterclockwise and which is configured to wrap part of the bale by rotating the wrapping unit (3) counterclockwise around the bale and to wrap another part of the bale by rotating the wrapping unit (3) clockwise around the bale. By means of such a device, it is possible to wrap a bale without using a welding device. By means of such a device, it is also possible to use not readily weldable wrapping material (such as e.g. tape fabric made from PP or PE).

The present invention relates to a wrapping device (1) configured to wrap a bale (12) with a wrapping material (2), wherein the device (1) comprises a wrapping unit (3) which is rotatable clockwise and counterclockwise and which is configured to wrap part of the bale by rotating the wrapping unit (3) counterclockwise around the bale and to wrap another part of the bale by rotating the wrapping unit (3) clockwise around the bale. By means of such a device, it is possible to wrap a bale without using a welding device. By means of such a device, it is also possible to use not readily weldable wrapping material (such as e.g. tape fabric made from PP or PE).

Described is a machine for wrapping groups (1) of products in a roll, comprising: a packaging unit (2) positioned above a feed channel (3); a transfer element (5) configured for feeding, in a feed direction (V5), to the packaging unit (2) the groups (1) of products in a roll with a corresponding sheet of wrapping material (6); feed and positioning units (8) configured for feeding the sheet (6) of wrapping material inside the vertical channel (3), in a direction (T6) transversal to the direction (V5) for feeding the group (1) of products; the machine also comprises means (9) for controlled retaining and unwinding of the sheet (6) of wrapping material positioned along the vertical feed channel (3); a first movement unit (10) connected to the controlled retaining and unwinding means (9) and configured to move the controlled retaining and unwinding means (9) from a position of free passage of the sheet (6) of wrapping material to a position for bilateral retaining of the sheet (6) of wrapping material positioned in the channel (3); a second movement unit (11) connected to the controlled retaining and unwinding means (9) and configured to move the controlled retaining and unwinding means (9), located in the retaining position, so as to unwind the sheet (6) of wrapping material in a controlled manner and at the movement of the transfer element (5) from the first lower operating position to a second upper operating position.

Described is a machine for wrapping groups (1) of products in a roll, comprising: a packaging unit (2) positioned above a feed channel (3); a transfer element (5) configured for feeding, in a feed direction (V5), to the packaging unit (2) the groups (1) of products in a roll with a corresponding sheet of wrapping material (6); feed and positioning units (8) configured for feeding the sheet (6) of wrapping material inside the vertical channel (3), in a direction (T6) transversal to the direction (V5) for feeding the group (1) of products; the machine also comprises means (9) for controlled retaining and unwinding of the sheet (6) of wrapping material positioned along the vertical feed channel (3); a first movement unit (10) connected to the controlled retaining and unwinding means (9) and configured to move the controlled retaining and unwinding means (9) from a position of free passage of the sheet (6) of wrapping material to a position for bilateral retaining of the sheet (6) of wrapping material positioned in the channel (3); a second movement unit (11) connected to the controlled retaining and unwinding means (9) and configured to move the controlled retaining and unwinding means (9), located in the retaining position, so as to unwind the sheet (6) of wrapping material in a controlled manner and at the movement of the transfer element (5) from the first lower operating position to a second upper operating position.

Bioprosthetic heart valves and methods for fabricating bioprosthetic heart valves are provided. Biological tissue is attached to biocompatible material. The biocompatible material is folded to form a tubular structure with the attached biological tissue located on the inner surface of the tubular structure, the biological tissue forming leaflets of the heart valve. A stent is secured around the outer surface of the tubular structure. A region of the biocompatible material is cut. The biocompatible material is folded at the cut region away from the tissue and around the downstream edge of the stent and is secured to the stent's outer surface. The biocompatible material is folded at the upstream end of the tubular structure around the upstream edge of the stent and attached to the stent's outer surface so that the stent's inner and outer surfaces are covered with no more than a single layer of the biocompatible material.

A system and method for activating a series of article protection features formed in product cartons in which a series of articles have been packaged includes an actuating assembly mounted along a path of travel for the cartons. The actuating assembly will include a series of actuating elements that are selectively moved into engagement with the article protection features of the cartons. The article protection features are urged into the cartons, between the articles therein and into positions engaging and supporting the articles.

An apparatus for wrapping a stack of objects vertical side faces and a horizontal top face has a unit for wrapping a film wrapper around the stack such that respective sections of the wrapper extend upward from each of the side faces. A first welder welds ends the film wrapper together at one of the side faces of the stack. A fold-over device folding the film sections over onto the top face of the stack. A second welder welds the folded-over film sections together on the top face of the stack.

A bundling machine includes a wrapper that wraps the combination while it rests on a forward end of a paper cutout and a rear end of the paper cutout overlaps the forward end of the paper cutout while the combination moves in a transport direction, a transporter having a wrapping belt and a removal belt that follows the wrapping belt along the transport direction for conveying the combination of packages along a transport plane in the transport direction through the wrapper, and a controller that controls the relative speed of the belts so that, while the combination contacts both belts, the wrapping belt moves faster than the removal belt, thereby causing the rear end to sustain a tension in the direction of the forward end.

A bundling machine includes a wrapper that wraps the combination while it rests on a forward end of a paper cutout and a rear end of the paper cutout overlaps the forward end of the paper cutout while the combination moves in a transport direction, a transporter having a wrapping belt and a removal belt that follows the wrapping belt along the transport direction for conveying the combination of packages along a transport plane in the transport direction through the wrapper, and a controller that controls the relative speed of the belts so that, while the combination contacts both belts, the wrapping belt moves faster than the removal belt, thereby causing the rear end to sustain a tension in the direction of the forward end.