Gatekeeper Systems Inc.

Canada

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        Trademark 3
        Patent 1
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        United States 3
        Canada 1
Date
2021 1
Before 2021 3
IPC Class
B60B 33/00 - Castors in general 1
B60B 33/04 - Castors in general adjustable 1

1.

Self-adjusting caster assemblies

      
Application Number 17156328
Grant Number 11975568
Status In Force
Filing Date 2021-01-22
First Publication Date 2021-07-29
Grant Date 2024-05-07
Owner Gatekeeper Systems, Inc. (Canada)
Inventor Mckay, John C.

Abstract

A self-leveling caster assembly includes a caster frame and a castor fork which is configured to pivot relative to the caster frame. A spring or other biasing mechanism biases the caster fork away from the caster frame, to maintain contact between the ground and a wheel supported by the caster fork along a travel range of the wheel. Even if a frame supporting the self-leveling caster assembly is bent, pulling the wheel away from the ground, the biased caster fork will maintain contact between the ground and the wheel, allowing continued use of a shopping cart or other wheeled apparatus including the self-leveling caster assembly.

IPC Classes  ?

2.

VIPERFISH

      
Serial Number 78380504
Status Registered
Filing Date 2004-03-08
Registration Date 2006-05-09
Owner Gatekeeper Systems Inc. (Canada)
NICE Classes  ? 09 - Scientific and electric apparatus and instruments

Goods & Services

Waterproof and weatherproof digital video recorders

3.

VIPERFISH

      
Application Number 119014300
Status Registered
Filing Date 2003-09-09
Registration Date 2004-10-05
Owner Gatekeeper Systems Inc. (Canada)
NICE Classes  ? 09 - Scientific and electric apparatus and instruments

Goods & Services

(1) Portable underwater and weatherproof digital video recorders; infrared cameras; thermal imaging cameras.

4.

THE GATEKEEPER

      
Serial Number 75907008
Status Registered
Filing Date 2000-02-01
Registration Date 2004-12-07
Owner GATEKEEPER SYSTEMS INC. (Canada)
NICE Classes  ? 09 - Scientific and electric apparatus and instruments

Goods & Services

Video monitoring systems, namely, cameras and video recorders for use on school buses