Abstract: Methods and devices heat or cool viscous materials, such as meat emulsions useful for producing food and other products. The devices have a heat exchanger including a first plate, a second plate attached to the first plate, and a first spacer and a second spacer arranged between the first plate and the second plate. The first plate, the second plate, the first spacer, and the second spacer define at least one temperature controlled passage for a product to pass through the heat exchanger.

Abstract: A finger-mounted marking device allowing marking instruments such as a pen or pencil to be worn on a finger, and allowing for hands-free usage without engaging other fingers two rings are coupled to the cylinder for receiving the operator's finger. A cylinder holds a marking instrument, and a set screw holds the marking instrument in place. The marking instrument can be adjusted or replaced based on the desires of the operator. In a second embodiment, a strap is coupled to the cylinder through a strap receiving holder and receives the operator's finger. A latch holds the marking instrument in place by applying pressure and allows the marking instrument to be adjusted or replaced.

Abstract: A finger-mounted marking device allowing marking instruments such as a pen or pencil to be worn on a finger, and allowing for hands-free usage without engaging other fingers. Two rings are coupled to the cylinder for receiving the operator's finger. A cylinder holds a marking instrument, and a set screw holds the marking instrument in place. The marking instrument can be adjusted or replaced based on the desires of the operator.