Abstract: A gun bore cleaning system for efficiently cleaning a bore of a gun. The gun bore cleaning system includes a cleaning member having a spiral groove and a length of cord positionable within the spiral groove. The cord is extended through a bore of a gun with the cleaning member cleaning the bore of the gun.

Abstract: A conventional roll of construction line can be outfitted with a reel having two shoulders connected by a shank through a spool on which the construction line is wound. The shank extends longitudinally from one of the shoulders and is releasably fastened to the other shoulder. A handle is mounted rotatably on either a longitudinal extension of the shank or one of the shoulders. Wedges on the shoulders engage the ends of the reel, and spurs on the shank engage the inside surface of the reel. A brake mechanism on the handle and a removable crank or winding knob are also provided.

Abstract: A line reel for dispensing string, construction line, or cord includes a cap that can be inserted into one end of a spool holding the material to be dispensed, a midsection that can be inserted into the other end of the spool, and a rotatable handle connected to the midsection on the opposite side from the spool. In one embodiment, the cap and midsection frictionally engage the inside of the spool and can be pulled out of the spool for re-use with another spool. In an alternate embodiment, a latch structure on the cap and midsection latches the cap to the midsection in the spool so they cannot be easily removed from the spool once assembled. The line reel includes a notch to hold the free end of the construction line or string. The cap, spool, and midsection, while positioned structurally so that they do not rotate in relation to each other, are able to rotate in relation to the handle to facilitate dispensing the construction line.

Abstract: A caulking tape for sealing joints such as around bath tubs and shower bases. A bead of butyl rubber based sealant permanently adheres to one side of a flexible strip of opaque polyester film. The tape is wound in a spiral roll and one side of the polyester strip is coated with a siliconized release agent from which the sealant releases to permit the tape to be drawn off of the roll for use. The bead of sealant is set back from the edges of the carrier strip so that it does not squeeze past the strip when the tape is applied and pressed against the joint. When the tape is fully applied to the joint, the sealant provides an effective seal and is completely covered by the attractive polyester strip to enhance the appearance of the caulked joint.

Abstract: A velocity control apparatus for a disk drive of the type comprising a recording disk rotatable about its axis, an electromagnetic read/write head for reading data from and writing data onto tracks on a surface of the disk, and means coupled to the head and responsive to velocity command signals for controlling the direction and speed of movement of the head. The velocity control apparatus includes a memory divided into a plurality of sections respectively associated with different ranges of desired distances to be traveled by the head, each section containing a predetermined number of addressable storage locations together defining an approximation of a desired velocity trajectory curve for a desired distance to be traveled included within the range associated with said section.