Patents by Inventor Marvin B. Johnson, Jr.

Marvin B. Johnson, Jr. 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: 6233874
    Abstract: A balanced free-standing juvenile safety gate characterized by its facile placement and displacement in a passageway wherein adjustably connected frame sections include a hinge frame and frame supporting platform with a hinge standpost being fixed to the platform; an extendible latch frame attached to the hinge frame with a latch handle atop said frame section, said latch handle having intermediate pivot connection to the frame section by pivoted connectors which in turn join the latch handle to a lever yoke, the lever yoke being connected at a lower end to a moveable bracket, whereby, upon closure of the latch handle transverse movement of bracket and pressure bar is forced into registry with one extreme of the passageway, against resistance of the standpost on an opposite extreme of the passageway; a caster supports the latch frame in extension of the hinge frame, during positions of passageway closure and opening.
    Type: Grant
    Filed: January 6, 2000
    Date of Patent: May 22, 2001
    Inventor: Marvin B. Johnson, Jr.
  • Patent number: 5632514
    Abstract: The invention encompasses a juvenile safety gate latch and housing which is handily mobile, its function being to render the existing gate secured, for intermittent passage of an adult through a gateway. It is especially useful for swinging such a gate from its open to closed position, and vice versa. It has specific utility for gates which are extendible and retractable. In their extended, closed position they compress against walls of a passageway for fixation against dislodging forces. The latch housing may be mounted upon a door stop or balustrade separately from the gate, but it is ideally portable with the gate from one passageway to another. It is characterized by its portability and versatile mounting without the use of any screws or other fixing devices. Once mounted it permits the adult to open and close the gate with one hand.
    Type: Grant
    Filed: March 26, 1996
    Date of Patent: May 27, 1997
    Inventor: Marvin B. Johnson, Jr.
  • Patent number: 5457914
    Abstract: The invention is characterized by at least one bracket 20 which is rotatably attached to a child's safety gate 10. The bracket defines a pedestal anchor 30 which is fixed to the gate, a rotatable clamp 60 being rivet-spring connected thereto, whereby the clip having pads 68 thereon may be pressed against door jamb or passageway walls to secure the gate against displacement, irrespective of shaking forces which may be applied to the gate. The bracket 60 is compressibly mounted relative to the anchor 30 such that the pads thereof clamp the gate against a fixed surface such as wall or doorjamb, supplementing the gate buffers 12, whereby displacement of the gate is rendered impossible.
    Type: Grant
    Filed: November 21, 1994
    Date of Patent: October 17, 1995
    Inventor: Marvin B. Johnson, Jr.
  • Patent number: 5199415
    Abstract: An adjustable fireplace hearth shield characterized by a frame which by extension and/or retraction is compressed upon the hearth outline, above the surface of the floor. Major and minor tightening adjustments may be effected while the frame is closely applied to the hearth. Simplicity of construction and/or on-site assembly distinguish the invention.
    Type: Grant
    Filed: June 25, 1992
    Date of Patent: April 6, 1993
    Inventor: Marvin B. Johnson, Jr.