US20100293820A1 - Method for Configuring a Shellfish Dredge - Google Patents
Method for Configuring a Shellfish Dredge Download PDFInfo
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- US20100293820A1 US20100293820A1 US12/785,492 US78549210A US2010293820A1 US 20100293820 A1 US20100293820 A1 US 20100293820A1 US 78549210 A US78549210 A US 78549210A US 2010293820 A1 US2010293820 A1 US 2010293820A1
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- bag
- shellfish
- chain
- ocean floor
- ocean
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- 235000015170 shellfish Nutrition 0.000 title claims abstract description 55
- 238000000034 method Methods 0.000 title claims abstract description 8
- 239000002184 metal Substances 0.000 claims description 13
- 230000007613 environmental effect Effects 0.000 description 8
- 241001465754 Metazoa Species 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 2
- 241000237503 Pectinidae Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 241000270666 Testudines Species 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 235000020637 scallop Nutrition 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K80/00—Harvesting oysters, mussels, sponges or the like
Definitions
- the present invention relates to the field of collecting shellfish and more specifically to a method for configuring a shellfish dredge.
- a shellfish dredge traditionally consists of a metal towing mechanism connected to a bag.
- the towing mechanism runs along the ocean floor and the shellfish, which rest on the ocean floor, are captured in the bag.
- the bag is similar in shape to a purse and has a deep-scooped ocean-floor side that runs along the ocean floor, a pocket side that creates the pocket space for the shellfish to lie and a side panel connecting the ocean-floor side to the pocket side.
- the bag has a scooped metal chain on the top perimeter of the ocean-floor side, which is supposed to apply additional pressure to the ocean floor, keeping the bag in constant and full contact with the ocean floor.
- a scooped metal chain on the top perimeter of the ocean-floor side, which is supposed to apply additional pressure to the ocean floor, keeping the bag in constant and full contact with the ocean floor.
- only the endpoints of the scooped chain, where the bag is attached to the towing mechanism come in full contact with the ocean floor. These portions often become worn out quickly and the entire chain needs to be replaced. The remaining portion of the chain does not get worn out and remains in better condition, but still needs to be replaced due to the worn out endpoints.
- the worn out endpoint sections of the scooped chain also correspond to the sections of the bag that are actually catching a large majority of the shellfish.
- the region where the bag and chain connect to the towing mechanism creates a triangular shape and comes to a peak at the points of attachment.
- shellfish are predominantly collected in these peak regions of the bag, with the remaining bag being primarily empty.
- the entire center region is not in constant and full contact with the ocean floor because it does not have the additional pressure created by the peaks and the towing mechanism and thus is not capturing all the shellfish.
- the current method of configuring a shellfish dredge is only capturing in the bag a small percentage of the shellfish capable of being caught.
- the opening of the bag represents the area where the shellfish enter and is traditionally shaped like a semi-circle.
- the top edges of the circle, the end peaks, are connected to the towing mechanism.
- Embodiments of the invention are concerned with a method for improving shellfish yields, decreasing the time needed on the ocean bottom and maximizing the use of the metal chains, while still conforming to environmental needs and regulations.
- a traditional bag is reconfigured to create an additional section for collecting shellfish. This can be done while still complying with environmental regulations.
- By reconfiguring the bag to have an additional section additional regions of force and pressure are created for catching the shellfish. This increase in force is done without significantly reducing the shellfish capture area of the bag as a whole, and therefore leads to an increase in shellfish that are caught.
- the bag can also be configured to have multiple additional sections.
- the additional sections create more regions for shellfish to enter. By using more of the bag to catch shellfish, more of the scooped metal chain will be used to catch shellfish.
- the bag can further be configured to create a wider capture area.
- the overall configuration of the bag can be optimized to deal with the availability of shellfish and environmental regulations in place with regards to bottom time and the amount of shellfish that are allowed to be collected.
- FIG. 1 illustrates a plan view of the ocean-floor side of an embodiment of the invention.
- FIG. 2 a illustrates a profile top view of an embodiment of the invention, as used on ocean floor.
- FIG. 2 b illustrates a side view of an embodiment of the invention, where towing frame meets the bag.
- FIG. 3 illustrates a plan view example of the ocean-floor side of another embodiment of the invention.
- the shellfish dredge 30 is used to catch shellfish situated along the ocean floor.
- the shellfish dredge is comprised of a towing frame 10 and a bag 20 .
- the towing frame is made up of a strong metal, such as steel. It has a hook 11 , which allows the dredge 30 to be towed at the ocean surface.
- the towing frame 10 has a cutting bar 15 and a pair of angled frame bars 16 .
- the towing frame 10 has one or more support bars 12 for added strength.
- the cutting bar 15 , angled frame bars 16 and support bars 12 make up the frame and structure of the towing mechanism 10 .
- braces and bars can be added to the towing frame 10 for increased strength and support.
- the front side of the cutting bar 15 runs along the ocean floor and the back side of the cutting bar 15 is attached to the angled frame bars 16 .
- the angled frame bars 16 are attached to the cutting bar 15 and the hook 11 .
- an additional support mechanism may be located at hook 11 to assist in securing the angled frame bars 16 .
- the support bars 12 are connected between the floor bar 15 and the angled frame bars 16 .
- a water pressure plate 13 is attached as the cutting bar 15 , on the side that does not run along the ocean floor.
- the water pressure plate 13 is sloped and angled in shape and is used to direct the ocean water in such a manner as to keep the shellfish dredge 30 on the ocean floor.
- the floor plates 14 are attached at the endpoints of the cutting bar 15 .
- the floor plates 14 and cutting bar are in contact with the ocean floor and are used to attach the bag 20 to the towing mechanism 10 .
- Shellfish are caught and stored in the bag 20 .
- the bag 20 is comprised of an ocean-floor side 21 , a pocket side 22 and a side panel 27 .
- the pocket side 22 is attached to the pressure plate 13 .
- the pocket side 22 and side panel 27 can be made up of a netting material, capable of keeping shellfish from leaving the bag. Neither the pocket side 22 nor the side panel 27 are meant to come in contact with the ocean floor. The purpose of the pocket side 22 and side panel 27 are to create the space needed to store caught shellfish.
- the ocean-floor side 21 comes in contact with the ocean floor. It is made up of a connection of metal rings and links 23 .
- the metal rings are circular in shape. It is appreciated that the size of the rings affects the size of the shellfish that the bag is capable of holding. It is also appreciated that environmental regulations may specify the size of the rings.
- the rings are linked together in such a manner as to create the shape of the front side 21 .
- the metal rings and links 23 are joined together such that a pair of end peaks 28 are created, which can be attached to the floor plates 14 .
- the metal rings and links 23 are joined together such that an open area is created between the end peaks 28 , that is capable of capturing the shellfish.
- the upper portion of the ocean-floor side 21 has a detachable scoop chain 24 attached along the top perimeter. The endpoints of the ocean-floor side 21 and scoop chain 24 are securely attached to the floor plates 14 .
- one or more support chains 25 are connected between the cutting bar 15 and the scoop chain 24 .
- the support chain 25 must remain taut to keep the bag 20 from changing shape or rising off the ocean floor.
- the length of the vertical chains 25 that is, the distance between the cutting bar 15 and scoop chain 24 , can be adjusted by adding or removing chain links, so that the support chain 25 remains taut.
- the object chains 26 in FIGS. 1 and 2 a create a grid-like pattern with the support chains 25 and are securely attached to the towing mechanism 10 .
- the object chains 26 may be attached to the cutting bar 15 , the floor plates 14 or an additional support brace that is securely fixed to the towing mechanism 10 .
- the purpose of the grid-like pattern created by the support chains 25 and object chains 26 are to keep large objects from entering the bag 20 .
- the object chains must remain securely attached to the towing mechanism 10 to overcome the force of large objects, such as rocks.
- the horizontal, animal chains 29 in FIG. 3 are attached to the scoop chain 24 and create a grid-like pattern with the support chains 25 .
- the purpose of the vertical chains 25 and animal chains 29 is to meet environmental regulations to keep larger animals, like turtles, from entering and getting caught in the bag 20 .
- the metal rings and links 23 of the front side 21 are configured such that a central peak 31 is created. This is done by adding additional metal rings and links to the center of the front side 21 in the shape of a triangle.
- the scoop chain 24 must be attached to conform to the top perimeter of the front side 21 .
- the scoop chain 24 may be adjusted so that it's length can cover the perimeter between the peaks 28 .
- the tip of the central peak 31 is then attached to the support chain 25 that is directly above it.
- the length of the support chain 25 that is, the distance between the cutting bar 15 and scoop chain 24 , must be adjusted so that it remains taut when connected to the central peak 31 .
- FIG. 2 b shows a side view of the towing frame and bag 20 .
- the towing frame 10 runs along the ocean floor, it pulls the bag 20 and allows shellfish to be collected in the area between the ocean-floor side 21 and the pocket side 22 of the bag 20 .
- one or more additional central peaks 31 may be created on the ocean-floor side 21 .
- a support chain 25 must be positioned to attach to each additional central peak 31 . It is appreciated that having an excessive number of central peaks 31 may reduce the capture area significantly.
- the one or more additional central peaks 31 do not have to be equal in height to one another.
- the ocean-floor side 21 may also be configured such that the end peaks 28 have a steeper incline and thus create a wider capture area for the shellfish. It is appreciated that the ocean-floor side 21 should not be configured to go too low to the bottom of the bag 20 or the ocean-floor side 21 will not be able to contain all of the shellfish.
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- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Farming Of Fish And Shellfish (AREA)
Abstract
A method for configuring a shellfish dredge is described. In an embodiment of the invention, a bag on a shellfish dredge has a front side and a back side and is attached to a tow. The front side of the bag has a pair of end peaks, one or more central peaks and an open area for catching shellfish. The end peaks are attached to the tow and the central peaks are attached to vertical chains connected to the tow. The bag is of a depth to catch and contain shellfish.
Description
- This application is a continuation of U.S. patent application Ser. No. 11/946,904, filed on Nov. 29, 2007.
- The present invention relates to the field of collecting shellfish and more specifically to a method for configuring a shellfish dredge.
- Fishing for shellfish, like scallops, has traditionally been done by using a shellfish dredge. Shellfish dredge technology has remained relatively unchanged for many decades. A shellfish dredge traditionally consists of a metal towing mechanism connected to a bag. The towing mechanism runs along the ocean floor and the shellfish, which rest on the ocean floor, are captured in the bag. The bag is similar in shape to a purse and has a deep-scooped ocean-floor side that runs along the ocean floor, a pocket side that creates the pocket space for the shellfish to lie and a side panel connecting the ocean-floor side to the pocket side. The bag has a scooped metal chain on the top perimeter of the ocean-floor side, which is supposed to apply additional pressure to the ocean floor, keeping the bag in constant and full contact with the ocean floor. However, in practice, only the endpoints of the scooped chain, where the bag is attached to the towing mechanism, come in full contact with the ocean floor. These portions often become worn out quickly and the entire chain needs to be replaced. The remaining portion of the chain does not get worn out and remains in better condition, but still needs to be replaced due to the worn out endpoints.
- The worn out endpoint sections of the scooped chain also correspond to the sections of the bag that are actually catching a large majority of the shellfish. The region where the bag and chain connect to the towing mechanism creates a triangular shape and comes to a peak at the points of attachment. During use, shellfish are predominantly collected in these peak regions of the bag, with the remaining bag being primarily empty. The entire center region is not in constant and full contact with the ocean floor because it does not have the additional pressure created by the peaks and the towing mechanism and thus is not capturing all the shellfish. The current method of configuring a shellfish dredge is only capturing in the bag a small percentage of the shellfish capable of being caught.
- The opening of the bag, the capture area, represents the area where the shellfish enter and is traditionally shaped like a semi-circle. The top edges of the circle, the end peaks, are connected to the towing mechanism.
- In recent years, the environmental impact of shellfish dredging has come under more scrutiny. Environmental regulations address the need to keep protected sea-animals from inadvertently getting caught in the shellfish dredge bag. These regulations often require additional chains and netting to be placed on the bag. Additionally, due to the desire to preserve the ocean bottom, there is an environmental advantage in decreasing the bottom time, the amount of time that a dredge spends on the ocean floor. At the same time, there is an economic and consumer need to preserve or increase the shellfish yields.
- Embodiments of the invention are concerned with a method for improving shellfish yields, decreasing the time needed on the ocean bottom and maximizing the use of the metal chains, while still conforming to environmental needs and regulations. A traditional bag is reconfigured to create an additional section for collecting shellfish. This can be done while still complying with environmental regulations. By reconfiguring the bag to have an additional section, additional regions of force and pressure are created for catching the shellfish. This increase in force is done without significantly reducing the shellfish capture area of the bag as a whole, and therefore leads to an increase in shellfish that are caught.
- The bag can also be configured to have multiple additional sections. The additional sections create more regions for shellfish to enter. By using more of the bag to catch shellfish, more of the scooped metal chain will be used to catch shellfish. The bag can further be configured to create a wider capture area. The overall configuration of the bag can be optimized to deal with the availability of shellfish and environmental regulations in place with regards to bottom time and the amount of shellfish that are allowed to be collected.
- It is an object of the invention to increase the shellfish caught in the bag of a shellfish dredge. It is a further object of the invention to maximize use of the bag area. It is a further object of the invention to more optimally use the scooped metal chain on the front side of the bag. It is a further object of the invention to be able to reduce bottom time without reducing corresponding shellfish yields.
- In order to improve performance of the chain bag, reduce ocean bottom time and improve use of the scooped chain, the inventor has come up with a method of modifying and configuring a shellfish dredge bag.
- The present invention will be understood more fully from the detailed description that follows and from the accompanying drawings, which however, should not be taken to limit the invention to the specific embodiments shown, but are for explanation and understanding only.
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FIG. 1 illustrates a plan view of the ocean-floor side of an embodiment of the invention. -
FIG. 2 a illustrates a profile top view of an embodiment of the invention, as used on ocean floor. -
FIG. 2 b illustrates a side view of an embodiment of the invention, where towing frame meets the bag. -
FIG. 3 illustrates a plan view example of the ocean-floor side of another embodiment of the invention. - As disclosed in
FIG. 1 andFIG. 2 , there is ashellfish dredge 30, which is used to catch shellfish situated along the ocean floor. The shellfish dredge is comprised of atowing frame 10 and abag 20. The towing frame is made up of a strong metal, such as steel. It has ahook 11, which allows thedredge 30 to be towed at the ocean surface. Thetowing frame 10 has acutting bar 15 and a pair ofangled frame bars 16. Thetowing frame 10 has one ormore support bars 12 for added strength. Thecutting bar 15,angled frame bars 16 andsupport bars 12 make up the frame and structure of thetowing mechanism 10. It is appreciated that additional braces and bars can be added to thetowing frame 10 for increased strength and support. The front side of thecutting bar 15 runs along the ocean floor and the back side of thecutting bar 15 is attached to theangled frame bars 16. Theangled frame bars 16 are attached to thecutting bar 15 and thehook 11. It is appreciated that an additional support mechanism may be located athook 11 to assist in securing theangled frame bars 16. Thesupport bars 12 are connected between thefloor bar 15 and theangled frame bars 16. - A
water pressure plate 13 is attached as thecutting bar 15, on the side that does not run along the ocean floor. Thewater pressure plate 13 is sloped and angled in shape and is used to direct the ocean water in such a manner as to keep theshellfish dredge 30 on the ocean floor. - There are a pair of
floor plates 14, attached at the endpoints of thecutting bar 15. Thefloor plates 14 and cutting bar are in contact with the ocean floor and are used to attach thebag 20 to thetowing mechanism 10. - Shellfish are caught and stored in the
bag 20. Thebag 20 is comprised of an ocean-floor side 21, apocket side 22 and aside panel 27. Thepocket side 22 is attached to thepressure plate 13. Thepocket side 22 andside panel 27 can be made up of a netting material, capable of keeping shellfish from leaving the bag. Neither thepocket side 22 nor theside panel 27 are meant to come in contact with the ocean floor. The purpose of thepocket side 22 andside panel 27 are to create the space needed to store caught shellfish. - The ocean-
floor side 21 comes in contact with the ocean floor. It is made up of a connection of metal rings and links 23. The metal rings are circular in shape. It is appreciated that the size of the rings affects the size of the shellfish that the bag is capable of holding. It is also appreciated that environmental regulations may specify the size of the rings. The rings are linked together in such a manner as to create the shape of thefront side 21. The metal rings andlinks 23 are joined together such that a pair of end peaks 28 are created, which can be attached to thefloor plates 14. The metal rings andlinks 23 are joined together such that an open area is created between the end peaks 28, that is capable of capturing the shellfish. The upper portion of the ocean-floor side 21 has adetachable scoop chain 24 attached along the top perimeter. The endpoints of the ocean-floor side 21 andscoop chain 24 are securely attached to thefloor plates 14. - As represented in
FIGS. 1 , 2 a and 3, one ormore support chains 25 are connected between the cuttingbar 15 and thescoop chain 24. Thesupport chain 25 must remain taut to keep thebag 20 from changing shape or rising off the ocean floor. The length of thevertical chains 25, that is, the distance between the cuttingbar 15 andscoop chain 24, can be adjusted by adding or removing chain links, so that thesupport chain 25 remains taut. Theobject chains 26 inFIGS. 1 and 2 a create a grid-like pattern with thesupport chains 25 and are securely attached to thetowing mechanism 10. Theobject chains 26 may be attached to the cuttingbar 15, thefloor plates 14 or an additional support brace that is securely fixed to thetowing mechanism 10. The purpose of the grid-like pattern created by thesupport chains 25 andobject chains 26 are to keep large objects from entering thebag 20. The object chains must remain securely attached to thetowing mechanism 10 to overcome the force of large objects, such as rocks. The horizontal,animal chains 29 inFIG. 3 are attached to thescoop chain 24 and create a grid-like pattern with thesupport chains 25. The purpose of thevertical chains 25 andanimal chains 29 is to meet environmental regulations to keep larger animals, like turtles, from entering and getting caught in thebag 20. - In an embodiment of the invention, the metal rings and
links 23 of thefront side 21 are configured such that acentral peak 31 is created. This is done by adding additional metal rings and links to the center of thefront side 21 in the shape of a triangle. Thescoop chain 24 must be attached to conform to the top perimeter of thefront side 21. Thescoop chain 24 may be adjusted so that it's length can cover the perimeter between thepeaks 28. The tip of thecentral peak 31 is then attached to thesupport chain 25 that is directly above it. The length of thesupport chain 25, that is, the distance between the cuttingbar 15 andscoop chain 24, must be adjusted so that it remains taut when connected to thecentral peak 31. - By creating the
central peak 31 and attaching it to thesupport chain 25, additional downward force is created at thecentral peak 31, allowing more of the scoopedchain 24 to run along the ocean floor and allowing thebag 20 to stay in more constant contact with the ocean floor so that more shellfish can be captured. This additional capture region is created without significantly reducing the overall capture area of thebag 20. It is appreciated that the distance between theframe 10 and thecentral peak 31 should not be too small or allow thecentral peak 31 to come too close to the cuttingbar 15, as that will greatly minimize the capture area of thebag 20. In addition, if the height of the peak is too close to the cutting bar, the ability to securely connect theobject chains 26 to thetowing mechanism 10 will not be possible. -
FIG. 2 b shows a side view of the towing frame andbag 20. As the towingframe 10 runs along the ocean floor, it pulls thebag 20 and allows shellfish to be collected in the area between the ocean-floor side 21 and thepocket side 22 of thebag 20. - In another embodiment of the invention, one or more additional
central peaks 31 may be created on the ocean-floor side 21. Asupport chain 25 must be positioned to attach to each additionalcentral peak 31. It is appreciated that having an excessive number ofcentral peaks 31 may reduce the capture area significantly. The one or more additionalcentral peaks 31 do not have to be equal in height to one another. - The ocean-
floor side 21 may also be configured such that the end peaks 28 have a steeper incline and thus create a wider capture area for the shellfish. It is appreciated that the ocean-floor side 21 should not be configured to go too low to the bottom of thebag 20 or the ocean-floor side 21 will not be able to contain all of the shellfish. - The above description is included to illustrate embodiments of the present invention and is not meant to limit the scope of the invention. The scope of the invention is to be limited only by the following claims.
Claims (5)
1. A method for configuring a shellfish bag comprising:
joining together a series of rings and links to form an ocean floor side of said bag, wherein rings and links are configured to create a pair of end peaks, a center peak, and an open area for capturing shellfish;
securing a chain along top perimeter of ocean floor side of bag;
attaching said ocean floor side of bag to a pocket side of said bag wherein pocket side has sufficient depth to hold contents of said bag; and
attaching said center peak to a support chain wherein said support chain is connected to a towing frame, wherein the length of support chain from point of attachment at towing frame to center peak is such that the support chain supports the shape of said bag and said center peak and allows center peak to remain in contact with ocean floor; and wherein distance between towing frame to center peak is greater than distance between towing frame to end peaks.
2. The method of claim 1 wherein said chain can be detached from ocean floor side of bag and elongated to accommodate additional rings and links.
3. A shellfish bag, capable of attaching to a towing frame, comprising:
an ocean floor side, comprising a series of rings and links, wherein rings and links are configured to create a pair of end peaks, a center peak, and an open area for capturing shellfish and further comprising a lining along top perimeter; and
a pocket side, having sufficient depth to hold contents of said bag.
4. The shellfish bag of claim 3 , wherein the lining along the top perimeter of the ocean floor side is a metal chain.
5. The shellfish bag of claim 3 , wherein the lining along the top perimeter of the ocean floor side is a cable.
Priority Applications (1)
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US12/785,492 US20100293820A1 (en) | 2007-11-29 | 2010-05-24 | Method for Configuring a Shellfish Dredge |
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US11/946,904 US7748146B2 (en) | 2007-11-29 | 2007-11-29 | Method for configuring a shellfish dredge |
US12/785,492 US20100293820A1 (en) | 2007-11-29 | 2010-05-24 | Method for Configuring a Shellfish Dredge |
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US11/946,904 Continuation US7748146B2 (en) | 2007-11-29 | 2007-11-29 | Method for configuring a shellfish dredge |
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Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
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US7748146B2 (en) * | 2007-11-29 | 2010-07-06 | Quintin Jr Thomas | Method for configuring a shellfish dredge |
CA2768406A1 (en) * | 2008-08-01 | 2010-02-04 | Deeside Marine Limited | Improvements in and relating to a fishing dredge |
CN102835362A (en) * | 2012-08-24 | 2012-12-26 | 李三川 | Device for catching river snails |
GB2543499B (en) * | 2015-10-19 | 2018-03-28 | Connolly James | Dredging apparatus for harvesting shellfish |
US11517002B1 (en) * | 2016-09-30 | 2022-12-06 | Great Salt Lake Brine Shrimp Cooperative, Inc. | Artemia harvesting device |
CN111328776A (en) * | 2020-04-08 | 2020-06-26 | 江苏省海洋水产研究所 | Device for catching shellfish breeding seedlings buried in sand-mud bottom pond and using method |
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2007
- 2007-11-29 US US11/946,904 patent/US7748146B2/en not_active Expired - Fee Related
-
2010
- 2010-05-24 US US12/785,492 patent/US20100293820A1/en not_active Abandoned
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US373646A (en) * | 1887-11-22 | Oyster-dredge | ||
US589047A (en) * | 1897-08-31 | Combined drill and oyster dredge | ||
US2684549A (en) * | 1951-05-14 | 1954-07-27 | Olden Andrew | Scallop drag |
US3087293A (en) * | 1960-12-05 | 1963-04-30 | Stephen J Cassidy | Apparatus to harvest sea products |
US4052800A (en) * | 1974-08-01 | 1977-10-11 | Salzgitter Ag | System for gathering solids from the ocean floor and bringing them to the surface |
US4446637A (en) * | 1980-11-28 | 1984-05-08 | Thomas Ferreira | Chafing gear for fishing drag |
US5024009A (en) * | 1989-12-05 | 1991-06-18 | Kirkman Kenneth G | Apparatus and method for collecting shellfish and the like |
US7748146B2 (en) * | 2007-11-29 | 2010-07-06 | Quintin Jr Thomas | Method for configuring a shellfish dredge |
Also Published As
Publication number | Publication date |
---|---|
US7748146B2 (en) | 2010-07-06 |
US20090139117A1 (en) | 2009-06-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |