Patents by Inventor Henry W. Wiklund

Henry W. Wiklund 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: 5292165
    Abstract: A lifting hook comprising a suspension part (1) fitted with a suspension shaft (7) which supports a hook part (5) provided with a slot (6). A safety latch (11) is pivotally journalled in the hook part. In a raised position, the safety latch keeps the suspension shaft distanced from an upper end portion (32) of the slot by engaging contact surfaces (16, 17) of the suspension part. When the safety latch is swung down, the suspension shaft moves into said end portion, whereby the safety latch is locked. The hook part (5) can be arranged, when being lowered into contact with the load or another surface and thereupon lifted again, to perform a turning movement into an upside down position during which the safety latch is opened and the load is released. The turning movement is caused by a displacement of the suspension shaft (7) and the hook part (5) in relation to each other along the slot (6), which results in a displacement of the center of gravity of the hook part.
    Type: Grant
    Filed: February 10, 1993
    Date of Patent: March 8, 1994
    Inventor: Henry W. Wiklund
  • Patent number: 5249645
    Abstract: A pressure fluid actuated lubricator having a housing (46), a pressure fluid channel (43, 42, 21) leading from an inlet opening (2) to an outlet opening (7), a reservoir (44) for a lubricant and a discharge device (19) for the lubricant. The reservoir (44) is arranged to be movable by being acted on by the pressure fluid and transfers the pressure force to the lubricant and the discharge device (19). The reservoir is sealed against the penetration of pressure fluid and decreases in effective volume in proportion to the discharged amount of lubricant.
    Type: Grant
    Filed: September 8, 1992
    Date of Patent: October 5, 1993
    Inventor: Henry W. Wiklund
  • Patent number: 5161645
    Abstract: A lubricator intended to feed lubricant, by a short impulse, to a pressure fluid line each time that tapping of pressure fluid is started. In the lubricator, a pressure fluid valve (29) is provided which, after a delay of a fraction of a second, is opened for the passage of pressure fluid when tapping is started. During the delay, a pressure drop results on one side of a lubricant valve (23) while simultaneously a higher pressure prevails in a lubricant reservoir (39) and imposes a movement on the lubricant valve during which lubricant is discharged.
    Type: Grant
    Filed: April 7, 1992
    Date of Patent: November 10, 1992
    Inventor: Henry W. Wiklund
  • Patent number: 5009013
    Abstract: The present invention provides a device to be used in machines which mark workpieces with characters or other symbols and have marking tools for applying the symbols to the workpiece, and elements for selecting the symbols and controlling the movements of the tools to obtain a desired shape and size of the symbols. In the device of the present invention, a lower frame part (1) receives a workpiece (7), and an upper frame part (2) is arranged on the lower frame part. The upper frame is capable of being raised and lowered and supporting the marking tool (43) and the symbol selection and control elements (36-42, 47-52, 69-74) of the machine. During a marking operation, the upper frame part (2) is arranged to rest on the workpiece (7) and clamp it against the lower frame part (1). A marking tool can work on the workpiece through an opening (44) in the upper frame part (2) of the device.
    Type: Grant
    Filed: November 17, 1989
    Date of Patent: April 23, 1991
    Inventor: Henry W. Wiklund
  • Patent number: 4605073
    Abstract: A device in pressure medium operated needle hammers, the needles (24) being arranged in a reciprocatingly movable working member (3) by at least one flexible holder member (31, 39) and, by a friction grip of the holder member being caused to follow the movements of the working member, but being permitted an axial play within predetermined limits through overcoming the frictional resistance. In addition, the rear portions of the needles can be arranged in a sealed chamber (34) filled with a hydraulic medium (35).
    Type: Grant
    Filed: June 27, 1984
    Date of Patent: August 12, 1986
    Inventors: Goran A. Nilsson, Kjell E. E. Edstrom, Henry W. Wiklund