Combination apparatus made of sacrificial anode material removably affixed to a shaft of a propeller of an engine of a water craft, the apparatus including removable and replaceable cutting blades
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B63H-001/28
B63H-005/16
C23F-013/14
출원번호
US-0617214
(2017-06-08)
등록번호
US-9988132
(2018-06-05)
발명자
/ 주소
Roberts, Ian
출원인 / 주소
Roberts, Ian
대리인 / 주소
Rozsa, Thomas I.
인용정보
피인용 횟수 :
0인용 특허 :
7
초록▼
The present invention is a combination apparatus having a body with two separate mating arms made of sacrificial anode material and a pair of oppositely disposed removable cutting blades made of material such as stainless steel. A respective cutting blade extends through an interior of a respective
The present invention is a combination apparatus having a body with two separate mating arms made of sacrificial anode material and a pair of oppositely disposed removable cutting blades made of material such as stainless steel. A respective cutting blade extends through an interior of a respective mating arm and extends outwardly from an exterior surface of a respective mating arm with cutting teeth of each respective cutting blade aligned with a slope of the exterior surface of a respective mating arm.
대표청구항▼
1. An apparatus adapted for use with a propeller shaft, the apparatus comprising: a. a first cutting blade and an identical second cutting blade, the first and second cutting blades each formed with a flat upper surface and a spaced apart identical flat lower surface, a sidewall of uniform thickness
1. An apparatus adapted for use with a propeller shaft, the apparatus comprising: a. a first cutting blade and an identical second cutting blade, the first and second cutting blades each formed with a flat upper surface and a spaced apart identical flat lower surface, a sidewall of uniform thickness between the flat upper surface and the identical flat lower surface, a proximal end with a first width extending to a body with spaced apart first sidewall and second sidewall, extending to a teeth section having a first multiplicity of cutting teeth extending from the first sidewall and a second multiplicity of cutting teeth extending from the second sidewall, each respective tooth from the first multiplicity of teeth aligned with a respective tooth from the second multiplicity of teeth;b. a first arm made of sacrificial anode material and formed in a thick C-shape having a body with a semi-circular exterior sidewall and a semi-circular interior sidewall, a first smooth interior wall extending from a first recess in the exterior sidewall to an interior smooth opening with an extension protruding from a first flat interior wall and a first threaded opening extending from a second recess in the exterior sidewall to an interior threaded opening recessed inwardly from a second flat interior surface, a first transverse slot extending from a proximal opening at the first interior sidewall to a distal opening at the first exterior sidewall, the first slot between the first smooth opening and the first threaded opening;c. a first cutting blade removably inserted at the proximal end of the first slot and extending through the body of the first arm, the multiplicity of cutting teeth protruding away from the exterior sidewall of the first arm, a portion of a first multiplicity of cutting teeth aligned with a first slope relative to the exterior surface of the first arm and a portion of the second multiplicity of cutting teeth aligned with a second slope relative to the exterior surface of the first arm;d. a second arm made of sacrificial anode material and formed in a thick C-shape having a body with a semi-circular exterior sidewall and a semi-circular interior sidewall, a first smooth interior wall extending from a third recess in the exterior sidewall to an interior smooth opening with an extension protruding from a third flat interior wall and a second threaded opening extending from a fourth recess in the exterior sidewall to an interior threaded opening recessed inwardly from a fourth flat interior surface, a second transverse slot extending from a proximal opening at the second interior sidewall to a distal opening at the second exterior sidewall, the second slot between the second smooth opening and the second threaded opening;e. a second cutting blade removably inserted at the proximal end of the second slot and extending through the body of the second arm, the multiplicity of cutting teeth protruding away from the exterior sidewall of the second arm, a portion of a first multiplicity of cutting teeth aligned with a first slope relative to the exterior surface of the second arm and a portion of the second multiplicity of cutting teeth aligned with a second slope relative to the exterior surface of the second arm;f. the first arm and the second arm removably joined together with the first smooth opening aligned with the second threaded opening, the extension from the first smooth opening inserted into the recess of the second threaded opening, and the first threaded opening aligned with the second smooth opening, the extension from the second smooth opening inserted into the recess of the first threaded opening, a first mating bolt extending through the first smooth opening and threaded into the second threaded opening and a second mating bolt extending through the second smooth opening and threaded through the first threaded opening; andg. the joined first and second arms forming a body with an interior diameter created from the first and second interior sidewalls press fit retained against an exterior wall of a cylindrical-shaped propeller shaft and the sloped relationship between the cutting blades and the combined first and second exterior sidewalls provide a smooth cutting action and the first and second arms rotate with the propeller shaft. 2. The apparatus in accordance with claim 1, further comprising: the sacrificial anode material is selected from the group consisting of zinc and magnesium. 3. An apparatus adapted for use with a propeller shaft, the apparatus comprising: a. a first cutting blade and an identical second cutting blade, the first and second cutting blades each formed with a flat upper surface and a spaced apart identical flat lower surface, a body having a proximal end and a distal end, the body including a teeth section having a first multiplicity of cutting teeth and a spaced apart second multiplicity of cutting teeth,b. a first arm made of sacrificial anode material and formed in a thick C-shape having a body with a semi-circular exterior sidewall and a semi-circular interior sidewall, a first smooth interior wall extending from a first recess in the exterior sidewall to an interior smooth opening, a first threaded opening extending from a second recess in the exterior sidewall to an interior threaded opening, a first transverse slot extending from a proximal opening at the first interior sidewall to a distal opening at the first exterior sidewall, the first slot between the first smooth opening and the first threaded opening;c. a first cutting blade removably inserted at the proximal end of the first slot and extending through the body of the first arm, the multiplicity of cutting teeth protruding away from the exterior sidewall of the first arm, at least a portion of a first multiplicity of cutting teeth aligned with a first slope relative to the exterior surface of the first arm;d. a second arm made of sacrificial anode material and formed in a thick C-shape having a body with a semi-circular exterior sidewall and a semi-circular interior sidewall, a first smooth interior wall extending from a third recess in the exterior sidewall to an interior smooth opening and a second threaded opening extending from a fourth recess in the exterior sidewall to an interior threaded opening, a second slot having a proximal opening at the second interior sidewall to a distal opening at the second exterior sidewall, the second slot between the second smooth opening and the second threaded opening;e. a second cutting blade removably inserted at the proximal end of the second slot and extending through the body of the second arm, the multiplicity of cutting teeth protruding away from the exterior sidewall of the second arm, at least a portion of a first multiplicity of cutting teeth aligned with a first slope relative to the exterior surface of the second arm;f. the first arm and the second arm removably joined together with the first smooth opening aligned with the second threaded opening, and the first threaded opening aligned with the second smooth opening, a first mating threaded bolt extending through the first smooth opening and threaded into the second threaded opening and a second mating threaded bolt extending through the second smooth opening and threaded through the first threaded opening; andg. the joined first and second arms forming a body with an interior diameter created from the first and second interior sidewalls press fit retained against an exterior wall of a cylindrical-shaped propeller shaft and the sloped relationship between the cutting blades and combined first and second exterior sidewalls provide a smooth cutting action and the first and second arms rotate with the propeller shaft. 4. The apparatus in accordance with claim 3, further comprising: the sacrificial anode material is selected from the group consisting of zinc, aluminum and magnesium or a mixture of sacrificial metals. 5. An apparatus adapted for use with a propeller shaft, the apparatus comprising: a. a first cutting blade and an identical second cutting blade, the first and second cutting blades each formed with a flat upper surface and a spaced apart identical flat lower surface, a body having a proximal end and a distal end, the body including a teeth section having a first multiplicity of cutting teeth and a spaced apart second multiplicity of cutting teeth;b. a first arm made of sacrificial anode material and formed in a thick C-shape having a body with a semi-circular exterior sidewall and a semi-circular interior sidewall, at least one passage extending through the first arm and at least a first slot extending through the first arm;c. a first cutting blade removably inserted through the at least one slot in the first arm, the multiplicity of cutting teeth protruding away from the exterior sidewall of the first arm, at least a portion of a first multiplicity of cutting teeth aligned with a first slope relative to the exterior surface of the first arm;d. a second arm made of sacrificial anode material and formed in a thick C-shape having a body with a semi-circular exterior sidewall and a semi-circular interior sidewall, at least one passage extending through the second arm and at least a second slot extending through the second arm;e. a second cutting blade removably inserted through the at least one slot in the second arm, the multiplicity of cutting teeth protruding away from the exterior sidewall of the second arm, at least a portion of a first multiplicity of cutting teeth aligned with a first slope relative to the exterior surface of the first arm;f. the first arm and the second arm removably joined together with a joining member extending through the at least one passage in the first arm and extending through and aligned at least one passage in the second arm; andg. the joined first and second arms forming a body with an interior diameter created from the first and second interior sidewalls press fit retained against an exterior wall of a cylindrical-shaped propeller shaft and the sloped relationship between the at least a portion of the cutting blades and at least the first exterior sidewall provides a smooth cutting action and the first and second arms rotate with the propeller shaft. 6. The apparatus in accordance with claim 5, further comprising: the sacrificial anode material is selected from the group consisting of zinc, aluminum and magnesium or a mixture of sacrificial metals. 7. An apparatus adapted for use with a propeller shaft, the apparatus comprising: a. a first cutting blade and an identical second cutting blade, the first and second cutting blades each formed with a flat upper surface and a spaced apart identical flat lower surface, a sidewall of uniform thickness between the flat upper surface and the identical flat lower surface, a proximal end with a first width extending to a body with spaced apart first sidewall and second sidewall, extending to a teeth section having a first multiplicity of cutting teeth extending from the first sidewall and a second multiplicity of cutting teeth extending from the second sidewall, each respective tooth from the first multiplicity of teeth aligned with a respective tooth from the second multiplicity of teeth;b. a first arm made of sacrificial anode material and formed in a thick C-shape having a body with a semi-circular exterior sidewall and a semi-circular interior sidewall, a first smooth interior wall extending from a first recess in the exterior sidewall to an interior smooth opening with an extension protruding from a first flat interior wall, a first transverse slot extending from a proximal opening at the first interior sidewall to a distal opening at the first exterior sidewall, and a second smooth surface on the first arm;c. a first cutting blade removably inserted at the proximal end of the first slot and extending through the body of the first arm, the multiplicity of cutting teeth protruding away from the exterior sidewall of the first arm, a portion of a first multiplicity of cutting teeth aligned with a first slope relative to the exterior surface of the first arm and a portion of the second multiplicity of cutting teeth aligned with a second slope relative to the exterior surface of the first arm;d. a second arm made of sacrificial anode material and formed in a thick C-shape having a body with a semi-circular exterior sidewall and a semi-circular interior sidewall, and a first threaded opening extending from a second recess in the exterior sidewall to an interior threaded opening recessed inwardly from the second flat interior surface, a second transverse slot extending from the proximal opening at the second interior sidewall to a distal opening at the second exterior sidewall, the second arm also having a second smooth surface;e. a second cutting blade removably inserted at the proximal end of the second slot and extending through the body of the second arm, the multiplicity of cutting teeth protruding away from the exterior sidewall of the second arm, a portion of a first multiplicity of cutting teeth aligned with a first slope relative to the exterior surface of the second arm and a portion of the second multiplicity of cutting teeth aligned with a second slope relative to the exterior surface of the second arm; andf. the first arm and the second arm rotatably joined together by a hinge having a hinge plate affixed at one side to the second smooth surface of the first arm and having a hinge plate affixed at a second side to the first smooth surface of the second arm with a hinge between the hinge plates to rotatably attach the first arm to the second arm through a rotatable hinge mechanism, further, then the first smooth opening aligned with the first threaded opening, the extension from the first smooth opening inserted into the recess of the first threaded opening, and a mating bolt extending through the first smooth opening and threaded into the first threaded opening to join together the sides of the arm opposite to the side where the hinge is located; andg. the joined first and second arms forming a body with an interior diameter created from the first and second interior sidewalls press fit retained against an exterior wall of a cylindrical-shaped propeller shaft and the sloped relationship between the cutting blades and the combined first and second exterior sidewalls provide a smooth cutting action and the first and second arms rotate with the propeller shaft. 8. The apparatus in accordance with claim 7, further comprising: the sacrificial anode material is selected from the group consisting of zinc, aluminum and magnesium or a mixture of sacrificial metals.
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