Patents by Inventor Petra Wadstrom

Petra Wadstrom 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: 8303180
    Abstract: A temperature recorder in the form of a tubular cover and with an inside piston, in which an altered position of the piston is carried out by a mechanical movement released from a bimetal washer, which, when making a sudden change, changes its form from convex to concave when a determined temperature level is reached. Two line-formed screen patterns, a picture formed by colored lines on the inner surface of the tubular cover, shows a certain pattern in the original position, and a different pattern is shown when an inside piston has been moved vertically inside the outer tubular cover. Friction between the outside of the piston and the inner surface of the tubular cover forms a braking means. A reset button can by means of a magnet or a spring repulse or press back the piston which is in the top of the tubular cover and has a magnet and the piston will be pressed back within the tubular cover to its original position and the first patterns will be shown clearly again by the line-formed screen pattern.
    Type: Grant
    Filed: November 30, 2007
    Date of Patent: November 6, 2012
    Inventor: Petra Wadström
  • Patent number: 8142652
    Abstract: A container for purification of water by a combination of filtering, heating, and UV-radiation of the water is disclosed. The container includes a first section, which at least partly includes a sunlight permeable layer, and a second section, which at least partly is opposite the first section and at least partly includes a sunlight absorbing and infrared radiation emitting (IR-emitting) layer. The first and the second section together enclose a volume, in which the water can be received to be heated by and exposed to sunlight. According to the present invention, the first section is arranged such that the permeable layer is essentially flat, and the second section is arranged such that the volume includes at least a first and a second portion, wherein the first and the second portion, respectively, have a first and a second distance, respectively, between the permeable layer and the sunlight absorbing and IR-emitting layer, where the first and second distances are mutually different.
    Type: Grant
    Filed: December 5, 2008
    Date of Patent: March 27, 2012
    Inventor: Petra Wadström
  • Publication number: 20100314306
    Abstract: A container for purification of water by a combination of filtering, heating, and UV-radiation of the water is disclosed. The container includes a first section, which at least partly includes a sunlight permeable layer, and a second section, which at least partly is opposite the first section and at least partly includes a sunlight absorbing and infrared radiation emitting (IR-emitting) layer. The first and the second section together enclose a volume, in which the water can be received to be heated by and exposed to sunlight. According to the present invention, the first section is arranged such that the permeable layer is essentially flat, and the second section is arranged such that the volume includes at least a first and a second portion, wherein the first and the second portion, respectively, have a first and a second distance, respectively, between the permeable layer and the sunlight absorbing and IR-emitting layer, where the first and second distances are mutually different.
    Type: Application
    Filed: December 5, 2008
    Publication date: December 16, 2010
    Inventor: Petra Wadström
  • Patent number: 7837865
    Abstract: The present invention relates to a container (2) for purifying water by utilization of sunlight, comprising a first surface (4, 8?, 9?, 10?, 12?) that is formed of a permeable layer for sunlight and a second surface (6, 8?, 9?, 10?, 12?) that is formed of an absorbing layer for sunlight. Further, the container comprises a first opening (14) and a second opening (16), respectively, provided with filter elements (18, 19). Filling with water is intended to be done in the first opening (14) and discharge of water is intended to be done through the second opening (16) after the water in the container (2) has been heated to a temperature of at least 600 C after exposure by sunlight and also exposure of ultraviolet radiation in order to make it possible to kill undesired micro-organisms.
    Type: Grant
    Filed: December 1, 2005
    Date of Patent: November 23, 2010
    Inventor: Petra Wadström
  • Publication number: 20100067561
    Abstract: A temperature recorder in the form of a tubular cover and with an inside piston, in which an altered position of the piston is carried out by a mechanical movement released from a bimetal washer, which, when making a sudden change, changes its form from convex to concave when a determined temperature level is reached. Two line-formed screen patterns, a picture formed by coloured lines on the inner surface of the tubular cover, shows a certain pattern in the original position, and a different pattern is shown when an inside piston has been moved vertically inside the outer tubular cover. Friction between the outside of the piston and the inner surface of the tubular cover forms a braking means. A reset button can by means of a magnet or a spring repulse or press back the piston which is in the top of the tubular cover and has a magnet and the piston will be pressed back within the tubular cover to its original position and the first patterns will be shown clearly again by the line-formed screen pattern.
    Type: Application
    Filed: November 30, 2007
    Publication date: March 18, 2010
    Inventor: Petra Wadström
  • Publication number: 20070262010
    Abstract: The present invention relates to a container (2) for purifying water by utilization of sunlight, comprising a first surface (4, 8?, 9?, 10?, 12?) that is formed of a permeable layer for sunlight and a second surface (6, 8?, 9?, 10?, 12?) that is formed of an absorbing layer for sunlight. Further, the container comprises a first opening (14) and a second opening (16), respectively, provided with filter elements (18, 19). Filling with water is intended to be done in the first opening (14) and discharge of water is intended to be done through the second opening (16) after the water in the container (2) has been heated to a temperature of at least 600 C after exposure by sunlight and also exposure of ultraviolet radiation in order to make it possible to kill undesired micro-organisms.
    Type: Application
    Filed: December 1, 2005
    Publication date: November 15, 2007
    Inventor: Petra Wadstrom
  • Publication number: 20050154341
    Abstract: The invention relates to a compression bandage for breast operated women consisting of a shirt (2) comprising at least one shoulder band (3,4) or arm portions (11,12), which extend into or ends in a portion extending around the body. The portion extending around the body is formed in one piece and comprises at least a portion (5) covering the breast portion, said portion consists of a material, which is elastic in a transverse, horizontal direction around the body in providing of a support for the breasts at the same time as it has a front portion (6) which can be opened or closed which before the application of the bandage has a bow formed extension and which after the application is formed after the figure of the user and gives an elastic function in the upper- and lower edge of the bandage both over and below the breasts at the same time as a directed compression against the breasts is attained. (FIG.
    Type: Application
    Filed: May 14, 2003
    Publication date: July 14, 2005
    Inventor: Petra Wadstrom