Illinois Tool Works Inc.

James M Van Ingen

Stephen R Dohm

Martin J Nilsen

Jeffrey D Anderson

Michael E Ward

David R Nebl

Taurris D Baskerville

Robert E Brunner

Jennifer L Crumrine

Michael L Ward

A fastener has a recessed drive configuration with outlet channels extending from the recessed drive configuration to the outer surface of the fastener.

Fastener head

A pipe nipple has a bore therethrough, with an entrance chamber at one end of the bore having a larger diameter adjacent a drive configuration of narrower diameter for receiving a tool therein to rotate the nipple about its longitudinal axis. The exterior of the nipple has a surface formation as a stop against which a hose can be inserted over the nipple, and a threaded length for attaching the nipple to another device.

Pipe nipple

A nut cap and assembly therewith is provided. The capped nut assembly is made up of a nut body and a cap. The nut body has an elongated internally threaded member formed with polygonal side walls extending from a collar member at the inner end toward the outer end, and the cap has a hollow shell with an end wall closing one end and being open at an opposite end. The cap is sleeved over said nut body with its side wall surrounding the polygonal side walls and its closed end overlies the outer end of the nut body, and the open end of the cap has a radially inwardly flared resilient lip portion that attaches to the collar member in a snap fitting relationship. The outer end of the nut body has an engagement member protruding therefrom, and the inside surface of the hollow shell has a ramping member at a location that it is adapted to strike the engagement member whenever the cap is rotated about the nut body such that the ramping member biases the resilient lip portion in a direction to release its holding force on the collar portion.

Nut cap and assembly therewith

A quarter turn fastener, for securing a plurality of members together, includes a blade member which has upturned corner portions defining sharp points for bitingly engaging the undersurface of the lowermost one of the plurality of members so as to prevent retrograde movement of the quarter turn fastener from the locked state back to the unlocked state. A quarter turn fastener assembly also comprises a stop member for engaging wall portions of another one of the members to be secured together such that rotation of the quarter turn fastener is limited to 90&deg; arcuate extents either from the unlocked state to the locked state or from the locked state to the unlocked state.

Growing community of inventors

Algonquin, IL, United States of America

James M Van Ingen