Company Filing History:
Years Active: 1996-1997
Title: The Innovative Contributions of Stephen G. Gilvar
Introduction
Stephen G. Gilvar is a notable inventor based in Bedford, NH (US). He has made significant contributions to the field of film technology, holding a total of 2 patents. His work has been instrumental in enhancing the functionality and reliability of film cassettes.
Latest Patents
Gilvar's latest patents include two innovative designs for film cassettes. The first patent, titled "Cassette for enclosing a plurality of negative film units," describes a film cassette that resiliently holds a film unit for exposure. This cassette features a forward wall, a rear wall, two side walls, a leading end wall, and a trailing end wall, all combined to form an enclosure for holding the film unit. An exposure opening in the forward wall allows for the exposure of the film unit, while an egress opening in the leading end wall enables the film to be discharged after exposure. Additionally, a pick slot in the forward wall provides access for a pick to engage the film unit and advance it through the egress opening. A spring platen mounted within the chamber biases the film unit against the forward wall, ensuring proper positioning for exposure.
The second patent, "Cassette for enclosing a plurality of positive film units," focuses on a cassette designed to hold sheets of film that create a positive image on one side. This cassette is specifically configured to minimize accidental discharge of the film sheets due to jars or impacts. A pick is utilized to penetrate a pick slot in the forward wall of the cassette, engaging pockets formed on the leading ends of the enclosed film units and urging them through an egress opening. A probe opening in the rear wall allows a probe to align each film unit with the egress opening at the time the pick engages the pocket in each film sheet. Inward offsets at the leading end of the cassette are filled by hold-back fingers, which engage hold-back shoulders on the leading end of each film sheet to prevent inadvertent discharge.
Career Highlights
Stephen G. Gilvar has had a distinguished career, primarily working with Polaroid Corporation. His innovative designs have contributed to the advancement of film technology, making it more user-friendly and efficient.
Collaborations
Throughout his career, Gilvar has collaborated with notable colleagues, including Harry R. Parsons and Robert M. Curry, Jr. These collaborations have further