Patents by Inventor Sidney J. Laughlin

Sidney J. Laughlin 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: 4477269
    Abstract: Cyclonic separator apparatus for extracting entrained lint particles from an effluent air stream prior to discharge into the atmosphere. A rotary filter is combined with a cyclonic separator of the type having a vertical settling chamber for separating relatively dense fiber product from airborne lint entrained in a product stream. The separator apparatus includes a housing forming an air stream inlet, a lint discharge outlet and a clean air outlet. A rotatable screen is interposed between the air stream inlet and the clean air outlet whereby the entrained lint is accumulated on the screen as the effluent air stream flows through the screen for discharge into the atmosphere. The accumulated lint deposit is presented to the lint discharge outlet as the screen turns. A first fan blower is coupled to the separator for inducing an upwardly moving inner vortex for entraining the airborne lint, and coupled to the filter inlet for discharging the entrained lint onto the rotatable screen.
    Type: Grant
    Filed: September 29, 1980
    Date of Patent: October 16, 1984
    Assignee: Sidney J. Laughlin
    Inventors: Sidney J. Laughlin, Ralph J. Claypool
  • Patent number: 4382857
    Abstract: Self-cleaning separator apparatus is used in combination with a vertical settling chamber for extracting fiber product from a moving air stream. The separator apparatus includes a housing forming an air stream inlet, a product discharge outlet and a clean air outlet. A rotatable screen is interposed between the air stream inlet and the clean air outlet for collecting the fiber product on the screen as the air stream flows through the screen for discharge into the atmosphere. An air flow gradient is induced in the settling chamber whereby the air flow rate through the rotating screen is substantially smaller near the bottom of the settling chamber than it is near the top of the settling chamber. The gradient is produced in part by a transversely extending baffle plate mounted in the annular flow region near the product discharge outlet, and in part by the off-center placement of the rotary screen closely adjacent the sidewalls of the settling chamber which converge toward the product discharge outlet.
    Type: Grant
    Filed: November 27, 1981
    Date of Patent: May 10, 1983
    Inventor: Sidney J. Laughlin
  • Patent number: 4377401
    Abstract: Method and filter apparatus for extracting entrained lint particles from an effluent air stream prior to discharge into the atmosphere. The filter apparatus and method are used in combination with a vertical settling chamber for separating relatively dense fiber product from airborne lint entrained in a product stream. The filter apparatus includes a housing forming an air stream inlet, a product discharge outlet and a clean air outlet. A rotatable screen is interposed between the air stream inlet and the clean air outlet for collecting the entrained lint on the screen as the effluent air stream flows through the screen for discharge into the atmosphere. Bulk fiber product which settles to the bottom of the chamber is discharged through a rotary valve in the product discharge outlet. The accumulated lint deposit is presented to the product discharge outlet as the screen turns.
    Type: Grant
    Filed: June 15, 1981
    Date of Patent: March 22, 1983
    Inventor: Sidney J. Laughlin
  • Patent number: 4268294
    Abstract: A filter system and method for extracting entrained lint particles from an effluent air stream prior to discharge into the atmosphere. The system and method are intended for use in combination with a cyclonic separator of the type having a vertical settling chamber for separating relatively dense fiber product from airborne lint entrained in a product stream. The filter system includes a housing forming an air stream inlet, a lint discharge outlet and a clean air outlet. A rotatable screen is interposed between the air stream inlet and the clean air outlet whereby the entrained lint is accumulated on the screen as the effluent air stream flows through the screen for discharge into the atmosphere. The accumulated lint deposit is presented to the lint discharge outlet as the screen turns. A first fan blower is coupled to the separator for inducing an upwardly moving inner vortex for entraining the airborne lint, and coupled to the filter inlet for discharging the entrained lint onto the rotatable screen.
    Type: Grant
    Filed: November 15, 1979
    Date of Patent: May 19, 1981
    Inventors: Sidney J. Laughlin, Ralph J. Claypool