The funeral of retired managing director, William Bloomfield, of Firs Avenue, Uppingham, took place at Kettering Crematorium, Canon Rachel Watts officiating.
Mr Bloomfield died at Oak House Residential Home, Greetham, aged 88.
Son of the late Charles and Helen Bloomfield, he served an apprenticeship as a junior draughtsman with Brockhouse Engineering, in Southport, Lancashire.
He then moved to Leyland Motors as a design draughtsman before becoming chief draughtsman in 1954, working for RA Dyson, in Liverpool. After working in York as a senior designer for Portasilo, he moved to Corby as chief designer for York Trailer Co and then York Technical Services in Market Harborough, retiring in 1982 as managing director.
He founded the Institution of Engineering Designers and was a member of the Society of Automotive Engineers and the Institute of Road Transport Engineers.
When he was younger he was a keen cyclist. Later in life he enjoyed history, reading, woodwork and walking.
He leaves his widow Joyce and daughters Jacky and Jilly.
Family mourners included: Joyce Bloomfield (widow), Jacky and Denis Shorley, Jilly and John Wright, grandchildren: Cate Hearnshaw, Jennie Carling and Jonathan Wright, Steve Hearnshaw, David Carling, Gemma Wright.
Sympathisers included: Ann and Barry Nicholls, Vera Dawson (representing Linda Glover), Tony Wright, Jeanette and Brian Smith, John and Glenn, Becky Malpas (David Malpas), Gordon and Margaret Shorley, Pauline Freeman, Joyce Polley (Stephen Polley), Barbara Algeo (Jim Davies), Mark Carrington, Helga and Jack Werner (Bob Cossins), Lynn and Jennifer Lapsley, David and Brenda Willoughby, Elizabeth Taylor, Joan Bennett.