Abstract: An aperture seal (30) is providing including a base member (32) having an insulating member (34) coupled thereto. A cover member (36) is coupled to the insulating member (34) on a side opposite the base member (32). A bead of sealant (38) is coupled around the periphery of the cover member (36). A second cover member (42) is provided to hold and protect the bead of sealant (38) in the first cover member (36) until the bead of sealant is released to secure the aperture seal (30) to the roof (12) and close the roof ventilator aperture (14).

Abstract: The invention concerns novel pharmaceutical preparations containing (A) an extract of the mollusc Perna canaliculus, a mussel which is found on the shores of New Zealand, and (B) a pharmaceutically active substance, especially medicaments having anti-phlogistic, antipyretic and/or analgetic action, which, when taken per se, may cause as a side effect irritation of the gastro-intestinal mucosae and possibly the formation of ulcers. The addition of a mollusc extract according to (A) to the said medicaments has a gastro-protective action, in that the occurence of the said side effects is prevented or diminished. The component (A) is preferably used as a dry powder of the whole of the flesh of the mollusc or a dry powder obtained from the gonads thereof. In a typical preparation according to the invention an extract of the gonads is e.g. combined with acetyl-salicylic acid. The preparations may contain the 2 components in one and the same dosage unit form, e.g. a capsule or in 2 different ones, e.g.