Abstract: A resilient, modular closure for selectively sealing an opening in a pry tab beverage can. The closure comprises a handle perpendicularly extending from an integral body. The handle is grasped between the thumb and the forefinger of the user. The body comprises a downwardly-projecting, beveled offset adapted to mate with the can opening, and a notch adapted to wedgably engage the pry tab. The ventral surface of the body comprises a circumferential ridge adapted to contact a top of a beverage can to seal around the opening or to mate with a reinforcement channel surrounding the can opening. Raised guides are defined along the dorsal surface of the notch for captivating the pry tab during installation of the closure. A snap fit yieldably engages the rim of the can when the closure is installed. The snap fit comprises a rim-receptive slot. A stop extends rearwardly from the body to contact an inner surface of the rim, and an "L" shaped jaw extends downwardly from the handle.

Abstract: A pull tab for a metal container. The pull tab has a cover portion of a size at least as large as the container opening for covering said opening after rupturing of said score line.

Abstract: A pull tab for a metal container. The pull tab has a cover portion of a size at least as large as the container opening for covering said opening after rupturing of said score line.

Abstract: Ultrasonic instrumentation for the removal of unwanted tissue material from an animal, such as a human, and more particularly, adapted for the removal of cataracts, in surgical operations. The ultrasonic instrumentation includes a hand-held instrument adapted to have a vibrating tool to reduce the volume of the cataract and thereafter, through the simultaneous introduction of a fluid and creating a flow, the cataract mass exits through the incision around the vibrating tool until all of the unwanted tissue forming the cataract is removed. The cataract may be removed substantially intact or by forming a plurality of masses.

Abstract: Ultrasonic and cryogenic instrumentation for the removal of unwanted tissue material from an animal, such as a human, and more particularly, adapted for the removal of cataracts, in surgical operations. The ultrasonic and cryogenic instrumentation include hand-held instruments with the cryogenic instrumentation adapted to first freeze the cataract lens and after the cataract lens has unfrozen the ultrasonic instrumentation is adapted by a vibrating tool to reduce the volume of the cataract and thereafter, through the simultaneous introduction of a fluid and creating a flow, the cataract mass exits through the incision around the vibrating tool until all of the unwanted tissue forming the cataract lens is removed.