Donald L Holland

Title: Innovations by Donald L. Holland

Introduction

Donald L. Holland is an accomplished inventor based in Statesville, NC (US). He has made significant contributions to the field of invention, holding two patents that showcase his innovative spirit and technical expertise.

Latest Patents

One of his latest patents is the Vertical Entry Multiple Paper Punch. This invention features a base with a substantially vertical stripper plate that has multiple openings for punch pins. Each punch pin is equipped with a cam follower head, and the design includes a die plate that aligns with the stripper plate to guide the vertical entry of sheets to be punched. The operating bar, mounted on a horizontal pivot, engages the punch pins, which are biased to an inactive position by resilient means.

Another notable invention is the Pencil Pointer. This device consists of a base with a cylindrical cutter and a rotatable pencil holder that is coaxial with the cutter. The holder includes a first guide to direct the pencil lead to the cutter and a second guide with selectable openings of different diameters. Additionally, the pointer features a lead cleaner, enhancing its functionality.

Career Highlights

Donald L. Holland is associated with Hunt Manufacturing Co., where he applies his inventive skills to develop practical solutions. His work reflects a commitment to innovation and quality in the manufacturing sector.

Conclusion

Donald L. Holland's contributions to invention, particularly through his patents for the Vertical Entry Multiple Paper Punch and the Pencil Pointer, highlight his creativity and technical prowess. His work continues to impact the industry positively.