Method for introducing a pulverulent material into meat or the like

摘要

A hollow needle is mechanically inserted into a piece of meat prior to admission of pulverulent salt into its interior. The leading end of the axial passage in the needle is sealed by a retractible plunger during introduction of the needle. The plunger is thereupon retracted and a first valve is opened to admit pulverulent salt which trickles into the needle from above by gravity flow. The admission of salt into the needle is promoted by a vibrator which agitates the magazine for salt and/or the needle. A second valve is opened simultaneously with or subsequent to opening of the first valve to admit into the needle compressed gas at a pressure slightly exceeding atmospheric pressure whereby the gas urges the column of pulverulent salt into the hole, which has been formed by the needle, while the needle is being extracted from meat. The pressure of gas is less than that pressure at which salt would be expelled into and would expand the piece of meat in inserted condition of the needle.