Patents by Inventor Stephen F. Evans

Stephen F. Evans has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 5642860
    Abstract: A hand holdable spray delivery system for dispensing a relatively viscous and/or solids laden liquid is provided. This spray delivery system includes a container adapted to house the liquid. A manually actuated pump device is mounted on the container. The pump device including an inlet passage, a pump chamber, and a discharge passage having a distal end connected in liquid communication so that the liquid is pumped from within the container, through the inlet passage, into the pump chamber and through the discharge passage upon manual actuation of the pump device. A slotted spray nozzle including a housing having an inlet side and an exit side is also included. The housing having an internal recess through the inlet side that terminates in an elongated orifice at the exit side.
    Type: Grant
    Filed: April 1, 1996
    Date of Patent: July 1, 1997
    Assignee: The Procter & Gamble Company
    Inventors: Stephan G. Bush, Dimitris I. Collias, Stephen F. Evans
  • Patent number: 4338366
    Abstract: A surface wiping implement is disclosed which is capable of effectively drying a surface. The surface wiping implement has an absorbent core encased in a non-collapsible cloth-like outer layer. The porosity, thickness, and liquid retention characteristics of the outer layer permit rapid penetration of primary drops of liquid into the absorbent core, while secondary drops of liquid are strongly attracted to and held at the interstices of the outer layer. The combined effects of the core and the outer layer remove liquid from the surface and prevent a redepositing of the removed liquid, thus permitting the surface wiping implement to remove all but the very small droplets of liquid which will evaporate in 15 seconds or less without spotting, streaking, or filming the surface.
    Type: Grant
    Filed: March 17, 1981
    Date of Patent: July 6, 1982
    Assignee: The Procter & Gamble Company
    Inventors: Stephen F. Evans, Raymond J. Ludwa, Orn Adalsteinsson
  • Patent number: 4089149
    Abstract: Procedures for forming and filling tampon sacks with absorptive aggregate in a continuous, high speed operation, the aggregate being delivered in uniform condition to a loading gun comprising a rotary loading wheel having pockets into which measured charges of aggregate are drawn by vacuum; the loading gun delivers the charges of aggregate to a discharge nozzle which propels the discrete charges through a hollow mandrel about which a web of sack forming material is tubed, the tubing upon passing beyond the mandrel being pinched between a lugged belt and a rotary transfer wheel at spaced apart intervals corresponding to the length of the tampon sacks being formed, as defined by preprinted transverse adhesive stripes on the tubed web, the discrete charges of aggregate being captured between adjacent pairs of lugs on the belt; the filled tubing is maintained in contact with the transfer wheel by vacuum until released for delivery to a succeeding operating station, a transfer tube being provided to deliver the fi
    Type: Grant
    Filed: July 8, 1976
    Date of Patent: May 16, 1978
    Assignee: The Procter & Gamble Company
    Inventor: Stephen F. Evans
  • Patent number: 4019306
    Abstract: Apparatus and procedures for forming and filling tampon sacks with absorptive aggregate in a continuous, high speed operation, the aggregate being delivered in uniform condition to a loading gun comprising a rotary loading wheel having pockets into which measured charges of aggregate are drawn by vacuum; the loading gun delivers the charges of aggregate to a discharge nozzle which propels the discrete charges through a hollow mandrel about which a web of sack forming material is tubed, the tubing upon passing beyond the mandrel being pinched between a lugged belt and a rotary transfer wheel at spaced apart intervals corresponding to the length of the tampon sacks being formed, as defined by preprinted transverse adhesive stripes on the tubed web, the discrete charges of aggregate being captured between adjacent pairs of lugs on the belt; the filled tubing is maintained in contact with the transfer wheel by vacuum until released for delivery to a succeeding operating station, a transfer tube being provided to
    Type: Grant
    Filed: December 27, 1974
    Date of Patent: April 26, 1977
    Assignee: The Procter & Gamble Company
    Inventor: Stephen F. Evans
  • Patent number: 3991294
    Abstract: An apparatus for making a longitudinally partitioned tubular body and sealingly securing a longitudinally divided head fitment to one end of the body to form a collapsible, longitudinally partitioned tubular dispensing container assembly. A single sheet of body forming material is configured, looped, spindled, and seamed to integrally form a tubular exterior wall and a chordal partition which are sealingly secured together along two longitudinally extending lap seams in the tubular wall. An end of the tubular wall is sealingly secured to the radially outwardly facing cylindrical surface of a longitudinally extending cylindrical skirt portion of the head fitment, and the adjacent end portion of the chordal partition is sealingly secured to a longitudinally extending chordal divider portion of the head fitment.
    Type: Grant
    Filed: October 30, 1975
    Date of Patent: November 9, 1976
    Assignee: The Procter & Gamble Company
    Inventor: Stephen F. Evans
  • Patent number: 3948704
    Abstract: A method of and apparatus for making a longitudinally partitioned tubular body and sealingly securing a longitudinally divided head fitment to one end of the body to form a collapsible, longitudinally partitioned tubular dispensing container assembly. A single sheet of body forming material is configured, looped, spindled, and seamed to integrally form a tubular exterior wall and a chordal partition which are sealingly secured together along two longitudinally extending lap seams in the tubular wall. An end of the tubular wall is sealingly secured to the radially outwardly facing cylindrical surface of a longitudinally extending cylindrical skirt portion of the head fitment, and the adjacent end portion of the chordal partition is sealingly secured to a longitudinally extending chordal divider portion of the head fitment.
    Type: Grant
    Filed: November 13, 1973
    Date of Patent: April 6, 1976
    Assignee: The Procter & Gamble Company
    Inventor: Stephen F. Evans