Location History:
- Quedgeley, GB (2002)
- Stonehouse, GB (2011)
Company Filing History:
Years Active: 2002-2011
Title: Thomas John Stickland: Innovator in Rotary Encoder Technology
Introduction
Thomas John Stickland is a notable inventor based in Stonehouse, GB. He has made significant contributions to the field of rotary encoder technology, holding 2 patents that showcase his innovative approach to engineering challenges.
Latest Patents
Stickland's latest patents include a rotary encoder in which an absolute position is defined using reference mark signals produced by each of at least two readheads. This rotary encoder apparatus comprises an encoder scale or ring and an encoder scale reader. The encoder scale includes an incremental scale and one or more reference marks. The encoder scale reader consists of at least a first readhead and a second readhead that each produce a reference mark signal when passed over a reference mark of the encoder scale. Additionally, the apparatus features a reference position setter for determining, as the encoder scale reader is rotated relative to the encoder scale, at least one angularly repeatable reference position of the encoder scale relative to the encoder scale reader using a first reference mark signal produced by the first readhead and a second reference mark signal subsequently produced by the second readhead.
Another significant patent is for a scale reading apparatus that includes a rotary ring for use in scale reading. This rotary ring has a scale on its outer circumference and is mounted on a rotary shaft. To reduce error caused by the rotary ring not sitting concentrically on the rotary shaft, both the inner circumference of the rotary ring and the outer circumference of the shaft are tapered. To compensate for eccentricity of the shaft, mounting screws are provided in holes on the rotary ring to adjust its position until it is concentric with the axis of rotation of the shaft.
Career Highlights
Thomas John Stickland is currently employed at Renishaw Plc, a company known for its precision engineering and innovation in measurement and healthcare technologies. His work at Renishaw has allowed him to develop and refine his inventions, contributing to advancements in rotary encoder technology.
Collaborations
Stickland has collaborated with notable coworkers such as James Reynolds Henshaw and Joel Barnabas Chase. Their combined expertise has fostered an environment of innovation and creativity within their projects.
Conclusion
Thomas John Stickland's contributions to rotary encoder technology exemplify his dedication to innovation and engineering excellence. His patents reflect a deep understanding of the complexities involved in precision measurement and position sensing.