Patents by Inventor Joseph E. Marler

Joseph E. Marler 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: 7506907
    Abstract: An improved apparatus for latching and unlatching a load from a sling comprises a housing attachable to a load lift line extending from a crane or other similar equipment. Contained at least partially within the housing is a load engaging assembly including a latch, such as a conventional sling hook used to attach a load containing sling. The load engaging assembly further includes a latch attachment assembly and an unlatching trigger assembly. The apparatus further includes a load activated lock operatively attached to the latch attaching assembly to latch and unlatch the load engaging assembly. The load activated lock includes a support structure affixed to the housing, a latch activating member slidably mounted on the support structure and a movable locking structure positioned within the housing and operatively adjacent the latch activating member to engage and prevent latch activating member from sliding movement when a load is applied to the latch.
    Type: Grant
    Filed: April 20, 2006
    Date of Patent: March 24, 2009
    Inventor: Joseph E. Marler
  • Patent number: 7032943
    Abstract: An apparatus for the loading and unloading of material is disclosed. The apparatus comprises a latching and unlatching mechanism that safely and efficiently releases an attached load from a sling after the load has been transported to the desired location. The apparatus further comprises a load-activated locking mechanism that prevents inadvertent release of the attached load, yet is adjustable to the weight of the lifting slings and hardware so as to prevent a premature locking.
    Type: Grant
    Filed: February 3, 2005
    Date of Patent: April 25, 2006
    Inventor: Joseph E. Marler
  • Patent number: 6024394
    Abstract: An apparatus for releasing an attached load, with the load being attached with a sling is described. Generally, the apparatus comprises a plate having an underside face, and a latch member, operatively associated with the underside face, for latching and unlatching the sling from the load. The apparatus may contain an activating line attached with the latch member, and activating member, operatively associated with the activating line, for activating the latch member. In the preferred embodiment, the latch member comprises a first member mounted on the plate, with the member having an opening therein, a second member mounted on the plate, with the member having an opening therein, and a third member mounted on the plate, with the member having an opening therein. A load pin is placed within the openings. A fulcrum point is provided so that the load pin may be pivoted for latching and unlatching. A gravity centering system is also included that allows for a single point release system.
    Type: Grant
    Filed: April 24, 1997
    Date of Patent: February 15, 2000
    Inventor: Joseph E. Marler
  • Patent number: 5791710
    Abstract: An apparatus for releasing an attached load, with the load being attached with a sling is described. Generally, the apparatus comprises a plate having an underside face, and a latch member, operatively associated with the underside face, for latching and unlatching the sling from the load. The apparatus may contain an activating line attached with the latch member, and activating member, operatively associated with the activating line, for activating the latch member. The apparatus may further comprise a spreader bar that is selectively attached to the plate. In the preferred embodiment, the latch member comprises a first member mounted on the plate, with the member having an opening therein, a second member mounted on the plate, with the member having an opening therein, and a third member mounted on the plate, with the member having an opening therein. A load pin is placed within the openings. A fulcrum point is provided so that the load pin may be pivoted for latching and unlatching.
    Type: Grant
    Filed: January 8, 1997
    Date of Patent: August 11, 1998
    Inventor: Joseph E. Marler
  • Patent number: 5762389
    Abstract: An apparatus for releasing an attached load, with the load being attached with a sling is described. Generally, the apparatus comprises a plate having an underside face, and a latch member, operatively associated with the underside face, for latching and unlatching the sling from the load. The apparatus may contain an activating line attached with the latch member, and activating member, operatively associated with the activating line, for activating the latch member. The apparatus may further comprise a spreader bar that is selectively attached to the plate. In the preferred embodiment, the latch member comprises a first member mounted on the plate, with the member having an opening therein, a second member mounted on the plate, with the member having an opening therein, and a third member mounted on the plate, with the member having an opening therein.
    Type: Grant
    Filed: May 30, 1996
    Date of Patent: June 9, 1998
    Inventor: Joseph E. Marler