Patents by Inventor Elbert Lawrence

Elbert Lawrence 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).

  • Natural pesticides, substances and methods of fabrication thereof
    Patent number: 11547118
    Abstract: Methods of fabricating a natural substance may include obtaining a particulate silica including perlite, preparing a liquid formula having at least one essential oil and preparing the natural substance by applying the liquid formula to the particulate silica.
    Type: Grant
    Filed: October 3, 2018
    Date of Patent: January 10, 2023
    Inventors: Elbert Lawrence, Ronald D. Guthrie, Richard L. Fewell, Jr.
  • Natural pesticide structures and methods of fabrication thereof
    Patent number: 10219507
    Abstract: Methods of fabricating a natural pesticide structure include obtaining at least one raw material; forming at least one natural pesticide building material from the at least one raw material by applying at least one natural pesticide substance to the at least one raw material, the at least one natural pesticide substance having intrinsic pesticide properties and including any combination of the following: garlic, lavender, gardenia, peppermint, wintergreen and lemon grass; and fabricating a natural pesticide structure from the at least one natural pesticide building material. Natural pesticide structures are also disclosed.
    Type: Grant
    Filed: January 25, 2017
    Date of Patent: March 5, 2019
    Inventors: Richard L. Fewell, Jr., Elbert Lawrence
  • Light weight rotary vegetation cutting heads
    Patent number: 5659964
    Abstract: A cutting head member for a vegetation trimmer such as a lawn edger or hedge trimmer has a rotatable blade holding jig journalled between two disc-like members clamped by a bolt onto a rotary shaft drive mechanism. The rotatable blade in one embodiment comprises a quick change removably mounted nail. The preferred embodiments provide an option of mounting either a rigid steel cutting blade or a string cutting blade.
    Type: Grant
    Filed: January 2, 1996
    Date of Patent: August 26, 1997
    Inventor: Elbert Lawrence
  • Rotary grass cutting head
    Patent number: 5493785
    Abstract: A heavy-duty, long-life, light-weight, replaceable rotary cutter head accessory for attachment to a rotary member of a vegetation trimmer is provided by this invention. The invention is characterized by several novel construction features that give the head superior cutting performance. For example, its construction is of two cylindrical coaxially nested cup-like head members with several sets of symmetrical apertures about the rim for retaining extending cutter members. The head members are constructed of light weight and extremely durable plastic, namely ultra high molecular weight polyethylene which has long wearing qualities. With apertures located in the two separate rim members, the head may be adapted for either flexible cord or rigid cutting members. The rigid cutting members are 16 or 20 penny nails, which wear a long time before encountering excessive wear in the special plastic head members.
    Type: Grant
    Filed: December 12, 1994
    Date of Patent: February 27, 1996
    Inventor: Elbert Lawrence
  • Football field table
    Patent number: D714393
    Type: Grant
    Filed: October 21, 2013
    Date of Patent: September 30, 2014
    Inventors: Bobby E. Harrell, Elbert Lawrence