The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 02, 2021
Filed:
Jan. 12, 2018
PS Industries Incorporated, Grand Forks, ND (US);
Daniel Thomas Satrom, Arvilla, ND (US);
Chad Joseph Rose, Grand Forks, ND (US);
PS Industries Incorporated, Grand Forks, ND (US);
Abstract
Apparatus and methods for assembling, installing, and operating a manually operated gate (e.g., a safety gate) are provided. The manually operated safety gate can include a gate frame and a spring assembly. The gate frame can include a proximal upright member, a distal upright member, an upper arm, and a lower arm. The proximal upright member can be anchored to a stationary surface. The upper arm and lower arm can be pivotably coupled to the proximal upright member and distal upright member to form a parallelogram. The manually operated gate can be configured to pivot between an open position and a closed position at a constant angular velocity. The gate can freely pivot to the closed position from a self-close position. A kit can contain the required structural components and instructions and can be used to assemble the manually operated gate assembly.