A wound capacitor comprising a cylindrical housing which includes an expansion space which is closed on the one side by a lid and which is bounded on the other side by a rigidly arranged centering disc which is provided with openings. Through such openings the expansion space is in open communication with a space in which a capacitor roll, disposed on a cylindrical core, is arranged. Connection wires are connected to the electrodes in the capacitor roll. These wires are anchored in the lid as well as in a centering member arranged in the centering disc. The centering member is locked against axial displacement by way of a shoulder which bears against the centering disc. In the case of an inadmissibly high gas pressure in the capacitor, the lid is displaced relative to the centering member and the connection wires are broken, the capacitor thus being rendered explosion-proof.

An electrical device has an electrical component, a housing having an open end for receiving the electrical component, a closure member for sealing the open end of the housing, the housing including an inner wall and a shoulder on the inner wall providing a seat for the closure member, and a retainer for retaining the closure member in sealing engagement with the seat. The retainer includes a plurality of radially outwardly extending ears for gripping the inner wall of the housing. A plurality of radially inwardly projecting lugs are provided on the inner wall and each lug has an axially inwardly facing surface for engaging the ears to maintain the closure member in sealing engagement with the seat.

An electrical device includes a housing having an open end for receiving an electrical component, a rigid member for sealing the open end to contain the electrical component within the housing, and an apparatus positioned between the electrical component and the rigid sealing member for anchoring the electrical component within the housing. The anchoring apparatus includes a center section, at least two angularly spaced arms extending radially outward from the center section, a locator extending axially outward from the center section for engaging the electrical component, posts extending axially outward from each of the arms for engaging the rigid sealing member to restrict movement of the center section and the arms relative to the rigid sealing member, and a plurality of spaced fingers extending axially outward from the arms for engaging the electrical component.

A wound capacitor having at least two conductive layers with non-conducting spacer layers disposed between them. Means for conducting electricity is attached to each of the conductive layers. An open hollow cored member having a flange extending outwardly from it has the layers wound around it and on one side of the flange with the hollow cored member remaining open. A member cofitting with the hollow cored member and flange sealingly encloses the layers. The means for conducting electricity extend out from the formed enclosure.

An electrical device includes a housing having an open end for receiving an electrical component, the housing including an inwardly extending flange located in proximity to the open end and the flange having surface area facing into the housing and away from the open end, anchoring structure adapted for positioning between the electrical component and the open end, the anchoring structure including a hub and at least two arms extending radially outwardly from the hub, the arms including radially extending ends having an effective distance therebetween which is larger than the size of the open end of the housing, and an abutment for abutting the hub against the electrical component, the arms being adapted for concave resilient deflection thereof into the housing for creating a biasing force against the electrical component and for reducing the effective distance between the radially extending ends for permitting installation of the anchoring structure into the open end and past the flange for engaging the radially extending ends against the surface area to maintain the deflection of the arms and thus the biasing force on the electrical component.