Patents by Inventor Trygve Gustavsson

Trygve Gustavsson 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: 7984837
    Abstract: Stapler (1) which in the course of a reciprocating working stroke (V) staples a workpiece (4), preferably a sheaf of papers, which stapler is powered by an electric motor which, via a transmission arrangement (5) drives the stapler during the working stroke, whereby the motor is activated and initiates the working stroke from a certain starting region as a result of the workpiece moving a trigger (32,33) which forms part of a trigger device (6) to a position at which a circuit-breaker (7), which forms part of the same electrical circuit (8) as the motor is connected to, is closed by the trigger, and whereby a release arrangement (9) connected to, and operatively acted upon, by a rotating means (11) which forms part of the transmission arrangement moves the trigger during the return phase of the working stroke to a non-closing position at which the circuit-breaker returns to an open position, thereby breaking the electric circuit and deactivating the motor, with the result that the working stroke ends in the s
    Type: Grant
    Filed: March 9, 2006
    Date of Patent: July 26, 2011
    Assignee: Isaberg Rapid AB
    Inventors: Mattias Palmquist, Mats Andersson, Trygve Gustavsson
  • Patent number: 7726535
    Abstract: A stapler for stapling together a workpiece, primarily a sheaf of papers, in which the stapler comprises a stapling unit and an anvil, which interacts with the stapling unit and on which the workpiece is placed, and against which stapling is performed, which stapling unit and an anvil are, driven relative to each other in a reciprocating stapling movement, during which movement stapling takes place, the stapling unit comprises a frame and a staple cassette which houses staple blanks and which is exchangeable, and which is detachably connected to the frame by attachment devices, and the staple blanks are fed one by one to an outlet channel by a feeding device incorporated in the stapler.
    Type: Grant
    Filed: April 13, 2005
    Date of Patent: June 1, 2010
    Assignee: Isaberg Rapid AB
    Inventors: Ulf Jönsson, Lars-Inge Magnusson, Frank Ambjörnsson, Trygve Gustavsson
  • Publication number: 20080265000
    Abstract: A stapler (1) for stapling together a workpiece (7), primarily a sheaf of papers, in which the stapler comprises a stapling unit (3) and an anvil (2), which interacts with the stapling unit and on which the workpiece is placed, and against which stapling is performed, which stapling unit and an anvil are, by means of a drive means (4), driven relative to each other in a reciprocating stapling movement (P), during which movement stapling takes place, wherein the stapling unit comprises a frame (8) and a staple cassette (9) which houses staple blanks (32) and which is exchangeable, and which is detachably connected to the frame by attachment devices (10), wherein the staple blanks are fed one by one to an outlet channel (56) by a feeding device (13) incorporated in the stapler, through which outlet channel a staple (35) which has been fed and formed into staple shape during the stapling movement is driven, by a blade-shaped driver (45) incorporated in the stapler, to staple the workpiece, which driver is driven
    Type: Application
    Filed: April 13, 2005
    Publication date: October 30, 2008
    Applicant: ISBERG RAPID AB
    Inventors: Ulf Jonsson, Lars-Inge Magnusson, Frank Ambjornsson, Trygve Gustavsson
  • Publication number: 20080190984
    Abstract: Stapler (1) which in the course of a reciprocating working stroke (V) staples a workpiece (4), preferably a sheaf of papers, which stapler is powered by an electric motor which, via a transmission arrangement (5) drives the stapler during the working stroke, whereby the motor is activated and initiates the working stroke from a certain starting region as a result of the workpiece moving a trigger (32,33) which forms part of a trigger device (6) to a position at which a circuit-breaker (7), which forms part of the same electrical circuit (8) as the motor is connected to, is closed by the trigger, and whereby a release arrangement (9) connected to, and operatively acted upon, by a rotating means (11) which forms part of the transmission arrangement moves the trigger during the return phase of the working stroke to a non-closing position at which the circuit-breaker returns to an open position, thereby breaking the electric circuit and deactivating the motor, with the result that the working stroke ends in the s
    Type: Application
    Filed: March 9, 2006
    Publication date: August 14, 2008
    Inventors: Mattias Palmquist, Mats Andersson, Trygve Gustavsson