1
Robert A Ferrell: Reclosable shipping sack and method. KCL Corporation, Hill Van Santen Steadman Chiara & Simpson, December 30, 1980: US04241865 (91 worldwide citation)

A reclosable sack having a pouring mouth from which discrete pourable contents may be discharged, comprises a primary non-reclosable stitched closure fastener across and closing the mouth against unintentional discharge of the contents and includes means such as chain stitch and rip strip for facili ...


2
Robert A Ferrell: Method and apparatus for producing bag making material having reclosable fasteners. Minigrip, Hill Van Santen Steadman & Simpson, April 15, 1986: US04582549 (54 worldwide citation)

Apparatus and method for making bag material from a continuous length of sheet. Side portions of the sheet are turned from opposite sides, and the sheet advanced through a joining station wherein extruded complementary separable fastener profile strips are joined to face of the flange portions which ...


3
Robert A Ferrell, James A Robinette: Method and apparatus for assembling and attaching zipper closure strips to sacks. KCL Corporation, Strong Robinette Company, Hill Van Santen Steadman & Simpson, November 15, 1983: US04415386 (48 worldwide citation)

Apparatus and method for assembling and attaching zipper closure means in strip form to open ends of flat sacks fed serratim into an attachment station. Consecutive sections of the closure means must be in proper registration with the sacks in such station. Assembly of the sections with the sack end ...


4
Brian P Sullivan, Larry T Dennis, Robert A Ferrell: Reclosable bag with sealed laminated liner and method. KCL Corporation, Hill Van Santen Steadman & Simpson, January 13, 1987: US04637063 (44 worldwide citation)

A bag structure and method of making the same, wherein a liner on the inside of the bag body has a closed top within the bag body top providing a primary closure for the bag which must be opened for access to contents within the bag. A secondary closure comprises a reclosable fastener zipper carried ...


5
Robert A Ferrell: Method and apparatus for making printed gusset bags. KCL Corporation, Hill Van Santen Steadman Chiara & Simpson, April 21, 1981: US04262581 (23 worldwide citation)

A method of and apparatus for making printed gusset bags from tubular bag material, which may be extruded film plastic with integral interlocking fastener profiles along the edges of panels of the material which have been collapsed into face-to-face relation, and in which each of the panels will pro ...


6
Robert A Ferrell, Richard G Rebber: Apparatus and method for securing top ends of sack gussets. KCL Corporation, Hill Van Santen Steadman & Simpson, August 13, 1985: US04534752 (19 worldwide citation)

The top end of a side gusset of a reclosable sack is securely closed as by means of spots of adhesive on and between the infolded gusset walls, leaving the bag walls free to spread relative to the gusset, and leaving the remainder of the gusset to its opposite end free to expand. A method and appara ...