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Class Information
Number: 452/13
Name: Butchering > Mollusk (e.g., oyster, clam, squid, mussel, octopus, snail, slug, scallop) > Bivalve opener
Description: Subject matter for forcing apart or causing to part the thick shell portions of a clam, oyster, scallop, or other hard-shelled mollusk.

Sub-classes under this class:

Class Number Class Name Patents
452/15 By pressure differential 13
452/17 Hand tool 24
452/16 Support and wedge 20
452/14 With heat treatment 17

Patents under this class:

Patent Number Title Of Patent Date Issued
8647180 Method and system for opening shellfish using infrared energy Feb. 11, 2014
8529320 Apparatus for shucking oysters Sep. 10, 2013
7674159 Board for opening an oyster Mar. 9, 2010
7621804 Oyster opener and method Nov. 24, 2009
7033263 Pivot action bivalve opening system Apr. 25, 2006
6426103 Process of elimination of bacteria in shellfish and of shucking shellfish Jul. 30, 2002
6217435 Process of elimination of bacteria in shellfish, of shucking shellfish and an apparatus therefor Apr. 17, 2001
6190248 Oyster shucker method and apparatus Feb. 20, 2001
6010397 Methods of processing bivalve molluscs Jan. 4, 2000
5788562 Process for preparing to open bivalves, particularly oysters, and device for performing it Aug. 4, 1998
5599228 Clamp for holding oysters and like mollusc while being pryed opened Feb. 4, 1997
5482500 Clam and oyster opener Jan. 9, 1996
5427567 Shellfish processing Jun. 27, 1995
5401208 Oyster knife Mar. 28, 1995
5399117 Nipper tool to aid oyster shucking Mar. 21, 1995
5334080 Shellfish cracker, shucker Aug. 2, 1994
5178577 Shellfish shucking machine Jan. 12, 1993
5145448 Method for removing oysters from oyster shells Sep. 8, 1992
5059151 Method and apparatus for opening a mollusk Oct. 22, 1991
4939814 Cultured mussel cleaning machine Jul. 10, 1990
4870719 Oyster shell separator Oct. 3, 1989
4361933 Method of shucking scallops and an apparatus therefor Dec. 7, 1982
4304029 Oyster processing method Dec. 8, 1981
4143444 Oyster processing apparatus Mar. 13, 1979
3934311 Oyster breaker operated by electric motor having bearing seal device Jan. 27, 1976

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