Patents by Inventor Charles H. Schaar

Charles H. Schaar 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: 4378800
    Abstract: A diaper fastener which comprises tape and has first and second anchoring portions and an attachment portion. The first and second anchoring portions are secured, respectively, to the inner and outer surfaces of the diaper adjacent a lateral margin and each is in a force-transmitting relation to the attachment portion. The attachment portion has a pressure-sensitive adhesive disposed on one surface thereof, whereby it is securable to a remote region of the diaper for retaining the diaper on the wearer.
    Type: Grant
    Filed: February 17, 1977
    Date of Patent: April 5, 1983
    Assignee: Colgate-Palmolive Company
    Inventor: Charles H. Schaar
  • Patent number: 4341209
    Abstract: The pressure sensitive adhesive bandage disclosed includes a novel low density polyethylene closed cell foam backing sheet with a glossy, smoothly pebbled, low friction, non-adherent face surface and a coating-adherent rear surface having a pressure sensitive adhesive to which is adhered an absorbent pad. In comparison with bandages having a vinyl backing sheet, the novel plasticizer-free polyethylene foam backing sheet provides improved shelf life, while its low density and low hand provides superior smoothness, flexibility, conformability and softness.
    Type: Grant
    Filed: January 12, 1981
    Date of Patent: July 27, 1982
    Assignee: The Kendall Company
    Inventor: Charles H. Schaar
  • Patent number: 4330220
    Abstract: A scrub sponge comprising, a packet having a rupturable wall and a closed chamber containing a liquid scrub agent, and a cover of foam material having a cavity to receive the packet. The sponge has a puncture member intermediate the cover and the rupturable wall, with the puncture member having a projection facing toward the puncturable wall such that the projection pierces the puncturable wall when the puncture member is pressed toward the packet to release the scrub agent into the cover.
    Type: Grant
    Filed: June 12, 1980
    Date of Patent: May 18, 1982
    Assignee: The Kendall Company
    Inventors: Charles H. Schaar, Nicholas A. Marra, William J. Dunn, Frank K. Villari
  • Patent number: 4265234
    Abstract: A dressing composite comprising, a bandage comprising an elongated backing sheet having a back surface facing away from a patient after application of the bandage, a front surface facing toward the patient after application of the bandage, an absorbent pad located over the front surface of the backing sheet and intermediate opposed ends of the backing sheet, and an adhesive covering a substantial portion of the front surface of the backing sheet intermediate the pad and the opposed ends of the backing sheet. The dressing composite has a package comprising a front cover sheet extending the length of the bandage, and having a width greater than the width of the bandage backing sheet, with opposed side margins of the front cover sheet extending past opposed sides of the bandage, and an inner release surface releasably attached to the exposed adhesive of the bandage.
    Type: Grant
    Filed: November 14, 1979
    Date of Patent: May 5, 1981
    Assignee: The Kendall Company
    Inventor: Charles H. Schaar
  • Patent number: 4212296
    Abstract: A bandage comprising, a pressure-sensitive tape strip having a central portion, and a pair of opposed end portions extending from the central portion for securing the bandage to a patient. The bandage has a protective member having a back surface secured to the front surface of the tape strip central portion, and a front surface defining a cavity. The bandage also has an absorbent pad received in the cavity with the protective member absorbing blows applied to the bandage to minimize trauma to a wound covered by the bandage.
    Type: Grant
    Filed: April 20, 1978
    Date of Patent: July 15, 1980
    Assignee: The Kendall Company
    Inventor: Charles H. Schaar
  • Patent number: 4211226
    Abstract: A disposable diaper comprising, an absorbent pad assembly having an absorbent pad, and a sheet covering a surface of the pad. The sheet has a slit defining a strip connected to the remaining portion of the sheet. The diaper has a pressure-sensitive tape strip secured to the pad assembly and extending across an opening defined by the slit, with the tape strip having adhesive facing toward the sheet strip. The sheet strip is releasably attached to the adhesive and is peeled from the tape strip in order to expose the adhesive through the opening for use in securing the diaper about an infant.
    Type: Grant
    Filed: April 16, 1979
    Date of Patent: July 8, 1980
    Assignee: Colgate-Palmolive Company
    Inventor: Charles H. Schaar
  • Patent number: 4209016
    Abstract: A disposable diaper comprising, an absorbent pad assembly having opposed surfaces, a pair of side edges, and a pair of end edges connecting the side edges. The diaper has a tape fastener comprising, tape means having a first portion secured to one of the surfaces of the pad assembly, a split securement portion for attachment to a spaced portion of the diaper and distribution of forces in the fastener.
    Type: Grant
    Filed: March 6, 1978
    Date of Patent: June 24, 1980
    Assignee: Colgate-Palmolive Company
    Inventor: Charles H. Schaar
  • Patent number: 4207895
    Abstract: A disposable diaper comprising, an absorbent pad assembly, a release sheet on a surface of the pad assembly adjacent a side edge, a rape strip having a first portion secured to the surface of the pad assembly, a securement portion releasably attached to the release sheet, and an extensible central portion connecting the first and securement portions.
    Type: Grant
    Filed: December 11, 1978
    Date of Patent: June 17, 1980
    Assignee: Colgate-Palmolive Company
    Inventor: Charles H. Schaar
  • Patent number: 4182333
    Abstract: A disposable diaper comprising, an absorbent pad assembly having an absorbent pad, a front surface, a back surface, a pair of side edges, and a pair of end edges connecting the side edges. The pad assembly has a plurality of longitudinally extending folds defining a box-pleat configuration of the pad assembly having a pair of first fold lines defining a longitudinally extending central panel, and a pair of second fold lines defining a pair of first pleat panels intermediate the first and second fold lines and overlying the central panel, and defining a pair of second pleat panels extending from the second fold lines. The pad assembly has a lateral fold of the box-pleat assembly along a fold line spaced slightly from one of the end edges and defining an end section of the pad assembly intermediate the lateral fold line and the one end edge, with the end section being folded over the front surface of an adjacent portion of the pad assembly.
    Type: Grant
    Filed: August 10, 1977
    Date of Patent: January 8, 1980
    Assignee: Colgate-Palmolive Company
    Inventor: Charles H. Schaar
  • Patent number: 4158363
    Abstract: A disposable diaper comprising, an absorbent pad assembly, a release sheet on a surface of the pad assembly adjacent a side edge, a tape strip having a first portion secured to the surface of the pad assembly, a securement portion releasably attached to the release sheet, and an extensible central portion connecting the first and securement portions.
    Type: Grant
    Filed: February 22, 1978
    Date of Patent: June 19, 1979
    Assignee: Colgate-Palmolive Company
    Inventor: Charles H. Schaar
  • Patent number: 4100921
    Abstract: A diaper fastener which comprises tape and has first and second anchoring portions and an attachment portion. The first and second anchoring portions are secured, respectively, to the inner and outer surfaces of the diaper adjacent a lateral margin and each is in a force-transmitting relation to the attachment portion. The attachment portion has a pressure-sensitive adhesive disposed on one surface thereof, whereby it is securable to a remote region of the diaper for retaining the diaper on the wearer.
    Type: Grant
    Filed: October 29, 1973
    Date of Patent: July 18, 1978
    Assignee: Colgate-Palmolive Company
    Inventor: Charles H. Schaar
  • Patent number: 4090516
    Abstract: A disposable diaper comprising, an absorbent pad assembly having opposed surfaces, a pair of side edges, and a pair of end edges connecting the side edges. The diaper has a tape fastener comprising, tape means having a first portion secured to one of the surfaces of the pad assembly, a securement portion for attachment to a spaced portion of the diaper, an extensible portion connecting the first and securement portions, and elastic means constraining expansion of the extensible portion.
    Type: Grant
    Filed: September 23, 1977
    Date of Patent: May 23, 1978
    Assignee: Colgate-Palmolive Company
    Inventor: Charles H. Schaar
  • Patent number: 4074716
    Abstract: A disposable diaper comprising, an absorbent pad assembly having opposed surfaces, a pair of side edges, and a pair of end edges connecting the side edges. The diaper has a tape fastener comprising, tape means having a first portion secured to one of the surfaces of the pad assembly, a securement portion for attachment to a spaced portion of the diaper, an extensible portion connecting the first and securement portions, and elastic means constraining expansion of the extensible portion.
    Type: Grant
    Filed: January 3, 1977
    Date of Patent: February 21, 1978
    Assignee: Colgate-Palmolive Company
    Inventor: Charles H. Schaar
  • Patent number: 4066081
    Abstract: A disposable diaper comprising, an absorbent pad assembly having opposed surfaces and a side edge. The diaper has a tape fastener comprising, a pressure-sensitive tape strip having a first end portion secured to one of the surface of the pad assembly adjacent a side edge, a second securement end portion for securing the diaper about an infant, and an elastic band extending around and laterally constraining a central portion of the strip intermediate the first and second portions. The band reduces the lateral dimensions of the central portion and the effective normal length of the strip, such that the second strip portion is longitudinally extensible relative the first portion by increasing the size of the central portion from reduced to enlarged lateral dimensions while expansing the band responsive to forces applied in a longitudinal direction against the strip.
    Type: Grant
    Filed: November 18, 1976
    Date of Patent: January 3, 1978
    Assignee: Colgate-Palmolive Company
    Inventor: Charles H. Schaar
  • Patent number: 4062362
    Abstract: A disposable diaper comprising, an absorbent pad assembly having a backing sheet, a top sheet, a pair of side edges, a pair of end edges, and a plurality of longitudinally extending absorbent pads disposed in a contiguous relationship laterally across the pad assembly between the backing sheet and the top sheet. Adjoining pads of the pad assembly are longitudinally separated along a line extending between end edges of the pads and through the thickness of the pads to permit relative longitudinal movement of opposed lateral side margins of the pad assembly.
    Type: Grant
    Filed: December 29, 1975
    Date of Patent: December 13, 1977
    Assignee: Colgate-Palmolive Company
    Inventor: Charles H. Schaar
  • Patent number: 4050463
    Abstract: In a disposable diaper comprising a porous absorbent pad of cellulosic fibers and a water impervious back sheet adjacent and bonded to one surface of the pad, that improvement wherein the fibers at the surface of the pad opposite the backing sheet are bonded together with a resinous material, the bonded fibers forming a porous matrix defining the top layer of the diaper and being adapted for placement in direct contact with the infant's skin.
    Type: Grant
    Filed: August 20, 1976
    Date of Patent: September 27, 1977
    Assignee: Colgate-Palmolive Company
    Inventor: Charles H. Schaar
  • Patent number: 4014338
    Abstract: A disposable diaper comprising, an absorbent pad assembly having front and back waistline portions, a crotch portion intermediate the waistline portions, a plurality of longitudinally extending folds defining an inverted pleat configuration of the pad assembly, and an elastic band extending across a lateral fold in the crotch region.
    Type: Grant
    Filed: January 14, 1976
    Date of Patent: March 29, 1977
    Assignee: Colgate-Palmolive Company
    Inventor: Charles H. Schaar
  • Patent number: 3995640
    Abstract: A disposable diaper comprising, an adsorbent pad assembly having front and back waistline portions, and a plurality of logitudinally extending folds defining an inverted pleat configuration of the pad assembly. The diaper has an elastic band secured to panels of the pad assembly.
    Type: Grant
    Filed: January 5, 1976
    Date of Patent: December 7, 1976
    Assignee: Colgate-Palmolive Company
    Inventor: Charles H. Schaar
  • Patent number: 3995637
    Abstract: A disposable diaper comprising, an absorbent pad assembly having front and back waistline portions, a crotch portion intermediate the waistline portions, a lateral fold in the crotch region along a laterally extending fold line, and an elastic constraint across the location of the lateral fold line.
    Type: Grant
    Filed: December 17, 1975
    Date of Patent: December 7, 1976
    Assignee: Colgate-Palmolive Company
    Inventor: Charles H. Schaar
  • Patent number: RE30057
    Abstract: A disposable diaper comprising, an absorbent pad assembly having a pair of waistline portions, a crotch region intermediate the waistline portions, a fluid impervious backing sheet, a fluid pervious cover sheet, and an absorbent pad intermediate the backing and cover sheets. The pad assembly may have a plurality of longitudinally extending folds defining a pleated configuration of the pad assembly having a longitudinally extending central panel, and a pair of outermost panels overlying the central panel. The pad assembly also has a lateral fold of the pleated pad assembly in the crotch region. The diaper has means for securing a sufficient portion of the outermost panels together in the lateral fold to maintain the pad assembly in its laterally folded configuration, in order that the diaper assumes a contoured configuration responsive to longitudinal expansion of the central panel.
    Type: Grant
    Filed: September 26, 1977
    Date of Patent: July 31, 1979
    Assignee: Colgate-Palmolive Company
    Inventor: Charles H. Schaar