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Bernard Sinclair, C.Eng. M.I.Mech.E.



Materials and Design

  • Materials selection

  • Product design

  • Product engineering

  • Tool design and sourcing


  • Injection moulding

  • Rotational moulding

  • Thermoforming

Secondary Operations

  • Finishing and decorating

  • Welding and fastening


  • Expert witness and legal


  • Consumer products

  • Housewares

  • Leisure

  • Office products

  • Packaging

Other Skills

  • Project management

  • Trouble shooting

Product Engineering, Design & Innovation

Bernard Sinclair is a Mechanical Engineer who has spent most of his career working within or for manufacturing industry. Practising since 1974, he has spent time designing and developing products for Hoover and Wilkinson Sword amongst others before establishing Product Engineering Associates. As the longest serving member of Plastics Consultancy Network, Bernard Sinclair served on the executive committee for the period 1995-2000. He has also acted as a Neighbourhood Engineer, taking Mechanical Engineering expertise into secondary schools, assisting students and staff in matters relating to design technology  as well as advising on  engineering,  manufacture and the selection of plastics.  He also undertakes expert witness work relating to design, manufacture and intellectual property.

Product Engineering Associates (PEA)

PEA was formed by Bernard Sinclair in 1987. It specialises primarily in the design, innovation and development of consumer products.

Work undertaken is technically led and includes, design and engineering on both new and existing products. This includes concept design, product design & development work and trouble shooting. Additional work provides clients with advice on design, materials and manufacture of proposed products, providing clients with technical specifications, provisional designs, prototypes, models, manufacturing cost estimates and estimates for tooling. Project are generally managed to the point of final approval of sampled components.

Expert Witness and Legal

Bernard Sinclair has undertaken a number of expert witness and legal assignments. These mainly relate to disputes in connection with product design, intellectual properly or mechanical design.

Clients for projects of this kind include:

Freshfields, Dibb Lupton Alsop (DLA), Millbank, Tweed, Hadley and McCloy, Bates, Wells and Braithwaite, BNFL and Birmingham Alliance/Hammerson UK Properties.

Speculative Projects

Bernard Sinclair is also involved in a speculative design-partnership which has evolved from Product Engineering Associates. Through this partnership a number of products have been developed for which the intellectual property is fully owned. These products are mainly stationery and desk-top items and are available for manufacture under licence. Some of the items are fully tooled ready for manufacture. Full details are available on request.

Recently Completed Projects

  • Oral Irrigator - new product design and development for Powerfloss Ltd


  •  Dualit Corkscrew/Bottle Opener - for Queensbury Hunt Levien  


  •  Freshly Squeezed Juice Dispenser - development for Freshlink Dispensers Ltd.


  •  Carousel Pen Holder - speculative development for the design-partnership


Manufacturing and marketing  companies: 

Wilkinson Sword, Canon Audio, Plastics Development Centre, Compactors Worldwide, Binney and Smith (Crayola), Lord Precision Industries, Samas Roneo, Premiere Bathrooms, Pitrok,  Formula One Administration, William  Levene, PowerFloss, Freshlink Dispensers.

Design Consultancies:

Conran Design Group, Pentagram Design, Queensberry Hunt Levien, Hop Design, Rowe Associates,  Goodwin Emck Product Design,  Product First.

Work completed on products for:

Quad Electroacoustics, Psion, Tomy, Atco-Qualcast, Carter Parratt, Hoyles, Corning, Maws,  Samsung, Household Articles, Dualit*.

* (These companies are not clients of  Product Engineering Associates.)

Contact Address

Product Engineering Associates, 11 Kerrison Road, London, W5 5NW.

Tel: 020 8566 3456

Fax: 020 8579 8608

email: enquiries@prodeng.co.uk

Web site: www.prodeng.co.uk