This inventor holds 1 USPTO granted patent. Top assignee: Sunbeam Corporation Limited. Active years: 1995.
Company Filing History:
Years Active: 1995
Title: David H Crisman: Innovator in Umbrella Technology
Introduction
David H Crisman is an accomplished inventor based in Baraboo, WI (US). He is known for his innovative contributions to the design of crank handle assemblies for shade umbrellas. His work has significantly improved the functionality and ease of use of outdoor shade solutions.
Latest Patents
Crisman holds a patent for a "Crank handle assembly for use in an umbrella." This invention features an improved crank handle assembly that is suitable for patio or beach use. The design includes a bolt and a crank formed as a unitary member, where the head of the bolt is insert molded into the hub of the crank during manufacturing. An annular spacer is mounted on each end of the bolt, and one end of the bolt has a reduced threaded portion that receives a washer and a nut. The main body of the bolt forms a shoulder adjacent to the threaded portion. Tightening the nut causes the washer to bottom out against the shoulder, applying a predetermined amount of compressive force to the crank handle assembly and the umbrella pole.
Career Highlights
Crisman is associated with Sunbeam Corporation Limited, where he has contributed to the development of innovative products. His work in the field of outdoor equipment has garnered attention for its practicality and effectiveness.
Collaborations
Crisman has worked alongside his coworker, Glen D Kemnitz, contributing to the advancement of their projects and innovations.
Conclusion
David H Crisman exemplifies the spirit of innovation in the field of outdoor equipment design. His patent for the crank handle assembly showcases his commitment to improving user experience and functionality in everyday products.