Patents by Inventor John A. DaSilveira

John A. DaSilveira 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: 10827721
    Abstract: Apparatus and methods to provide stalls for livestock such as dairy cattle and the like. A staggered/interlocking freestall assembly, which promotes better airflow and utilizes a smaller footprint that conventional freestall designs, is provided by using a plurality of uprights to create staggered and interlocking stalls.
    Type: Grant
    Filed: April 24, 2020
    Date of Patent: November 10, 2020
    Inventor: John DaSilveira
  • Publication number: 20180317446
    Abstract: A livestock stanchion with an improved support yoke including at least one releaseable support yoke comprising a mounting member fixed to and projecting upward from a horizontal rail. A support space formed in an upper end of each mounting member supports a locking bar. A removable pin for a support yoke crosses the upper region of a support space to prevent dislodging of the locking bar. The mounting member can be a plate or have a generally “V,” “U,” “H,” circular, arcuate or poloygonal shaped cross section.
    Type: Application
    Filed: June 18, 2015
    Publication date: November 8, 2018
    Applicant: DaSilveira Southwest, Inc.
    Inventor: John DASILVEIRA
  • Patent number: 9089106
    Abstract: An improved livestock stanchion including a plurality of forked vertical posts fixed between a substantially horizontal base rail and a horizontal rail to form a co-planar frame having at least one livestock opening. The horizontal rail can be serpentine in form to reduce the likelihood of head, horn or ear strikes as the animal's head enters a livestock opening. A locking bar rests in at least one releaseable support yoke mounted to the frame to allow easy installation and removal of a locking bar and its appurtenances. An end lap between adjacent locking bars provides for a strong releaseable couple. An offset pivot member and an offset latch pin of a pivoting restraining stanchion provide early engagement of a latch pin to a latching mechanism such as a pair of opposing latch dogs mounted on a locking bar above the horizontal rail.
    Type: Grant
    Filed: October 25, 2013
    Date of Patent: July 28, 2015
    Inventor: John DaSilveira
  • Publication number: 20150164043
    Abstract: An improved livestock stanchion including a plurality of forked vertical posts fixed between a substantially horizontal base rail and a horizontal rail to form a co-planar frame having at least one livestock opening. The horizontal rail can be serpentine in form to reduce the likelihood of head, horn or ear strikes as the animal's head enters a livestock opening. A locking bar rests in at least one releaseable support yoke mounted to the frame to allow easy installation and removal of a locking bar and its appurtenances. An end lap between adjacent locking bars provides for a strong releaseable couple. An offset pivot member and an offset latch pin of a pivoting restraining stanchion provide early engagement of a latch pin to a latching mechanism such as a pair of opposing latch dogs mounted on a locking bar above the horizontal rail.
    Type: Application
    Filed: October 25, 2013
    Publication date: June 18, 2015
    Inventor: John DaSilveira
  • Patent number: 6863031
    Abstract: An improved livestock latch assembly which includes a latch pin receiver assembly coupled to a rotatable camshaft, which moves the latch pin receiver assembly in a linear fashion between, deployed and retracted positions. In a deployed position, a latch pin receiver locks a pivotable restraining stanchion into a substantially vertical position when moved by an animal or operator. In a retracted position, a latch pin receiver assembly releases a pivotable restraining stanchion to freely pivot about its arc of swing. The improved latching mechanism may also include a decoupling member that allows a user to move a selected latch pin receiver assembly to a retracted position by uncoupling a selected latch pin receiver from a camshaft.
    Type: Grant
    Filed: November 21, 2003
    Date of Patent: March 8, 2005
    Inventor: John A. DaSilveira
  • Patent number: 5645015
    Abstract: A stanchion comprising a frame having a substantially horizontal extending frame member and having first and second substantially vertical extending side frame members couples to the substantially horizontal extending frame member. The second substantially vertical extending side frame member is displaced generally longitudinally from the first substantially vertical extending side frame member and the frame members define one stanchion opening therebetween. A restraining member is disposed in the stanchion opening, the restraining member being pivotally mounted to the frame for movement between a first position with the restraining member extending diagonally across the stanchion opening and a second position with the restraining member having a substantially vertical orientation.
    Type: Grant
    Filed: December 1, 1994
    Date of Patent: July 8, 1997
    Inventor: John A. DaSilveira
  • Patent number: 4930452
    Abstract: This improved cattle stanchion discloses an essentially coplanar and rectangular frame for automatically locking and manually releasing the heads of cattle. The frame unit consists of three vertical bars and two essentially horizontal bars, the top of which being slightly arched upwardly to form an apex over the center of the frame while the bottom bar is slightly arched downwardly to form a nadir under the center of the frame. These arches define an arc of travel for the central pivotally mounted vertical bar with an annular ring extension around the top arch of the frame. The annular ring cooperates with a locking mechanism consisting of pairs of elliptical latching sleeves mounted linearly apart and above the frame unit on a horizontal bar which may be operated by an attendant to either lock or unlock the stanchion.
    Type: Grant
    Filed: August 21, 1989
    Date of Patent: June 5, 1990
    Inventor: John A. DaSilveira
  • Patent number: D320482
    Type: Grant
    Filed: April 20, 1989
    Date of Patent: October 1, 1991
    Inventor: John A. DaSilveira
  • Patent number: D326340
    Type: Grant
    Filed: May 2, 1991
    Date of Patent: May 19, 1992
    Inventor: John A. DaSilveira
  • Patent number: D392426
    Type: Grant
    Filed: March 31, 1995
    Date of Patent: March 17, 1998
    Inventor: John A. DaSilveira