Abstract: Disclosed herein include antibodies or fragments thereof having specificity to a sarbecovirus spike protein. Also provided are compositions, methods, and kits for using said antibodies or fragments thereof for preventing or treating, for example a coronavirus infection.

Abstract: A contact assembly for a vacuum switching apparatus includes a contact member and a reinforcing member adapted to structurally reinforce the contact member. The contact member includes first and second opposing sides, and a contact thickness. The reinforcing member has a reinforcement thickness, which is less than the contact thickness. The contact member is made from a first material having a first coefficient of thermal expansion, and the reinforcing member is made from a second different material having a second coefficient of thermal expansion. The first coefficient of thermal expansion is substantially the same as the second coefficient of thermal expansion.

Abstract: A contact assembly for a vacuum switching apparatus includes a contact member and a reinforcing member adapted to structurally reinforce the contact member. The contact member includes first and second opposing sides, and a contact thickness. The reinforcing member has a reinforcement thickness, which is less than the contact thickness. The contact member is made from a first material having a first coefficient of thermal expansion, and the reinforcing member is made from a second different material having a second coefficient of thermal expansion. The first coefficient of thermal expansion is substantially the same as the second coefficient of thermal expansion.

Abstract: A contact assembly for a vacuum switching apparatus includes a contact member and a reinforcing member adapted to structurally reinforce the contact member. The contact member includes first and second opposing sides, and a contact thickness. The reinforcing member has a reinforcement thickness, which is less than the contact thickness. The contact member is made from a first material having a first coefficient of thermal expansion, and the reinforcing member is made from a second different material having a second coefficient of thermal expansion. The first coefficient of thermal expansion is substantially the same as the second coefficient of thermal expansion.

Abstract: A contact assembly for a vacuum switching apparatus includes a contact member and a reinforcing member adapted to structurally reinforce the contact member. The contact member includes first and second opposing sides, and a contact thickness. The reinforcing member has a reinforcement thickness, which is less than the contact thickness The contact member is made from a first material having a first coefficient of thermal expansion, and the reinforcing member is made from a second different material having a second coefficient of thermal expansion. The first coefficient of thermal expansion is substantially the same as the second coefficient of thermal expansion.

Abstract: A contact assembly for use in a vacuum switch includes an electrode stem and a contact coupled to an end portion of the electrode stem via a threaded fastener which threadingly engages a threaded portion of the electrode stem.

Abstract: A vacuum switching apparatus includes a vacuum envelope; a fixed contact assembly partially within the vacuum envelope; a first movable contact assembly partially within the vacuum envelope; a second movable contact assembly partially within the vacuum envelope; a first bellows within the vacuum envelope and cooperating with the first movable contact assembly to maintain a partial vacuum within the vacuum envelope; and a second bellows within the vacuum envelope and cooperating with the first movable contact assembly and the second movable contact assembly to maintain a partial vacuum within the vacuum envelope.

Abstract: A vacuum switching apparatus includes a vacuum envelope; a fixed contact assembly partially within the vacuum envelope; a first movable contact assembly partially within the vacuum envelope; a second movable contact assembly partially within the vacuum envelope; a first bellows within the vacuum envelope and cooperating with the first movable contact assembly to maintain a partial vacuum within the vacuum envelope; and a second bellows within the vacuum envelope and cooperating with the first movable contact assembly and the second movable contact assembly to maintain a partial vacuum within the vacuum envelope.

Abstract: An electrode assembly for a vacuum interrupter is disclosed having a coil structure that produces an axial magnetic field during operation of the assembly. The electrode coil includes at least one arcuate arm having a radial cross section which provides more material adjacent to a base of the coil than adjacent to a contact plate of the assembly. In a preferred embodiment, the cross sectional area of the arcuate arm has a trapezoidal shape. The electrode assembly provides improved heat transfer during operation of the vacuum interrupter while maintaining a sufficient axial magnetic field. As a result, the electrode assembly may be operated at higher continuous currents than conventional designs.