[특허]Fluid shovel apparatus and method

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특허 상세정보

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내보내기 페이스북 공유 트위터 공유 카카오톡 공유

Fluid shovel apparatus and method

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	E01H-005/00
미국특허분류(USC)	037/241; 037/266; 037/270; 037/285
출원번호	UP-0069139 (2008-02-07)
등록번호	US-7784200 (2010-09-20)
발명자 / 주소	Nagamatsu, Brian H. Nagamatsu, Felicia M.
대리인 / 주소	Schmeiser, Olsen & Watts, LLP
인용정보	피인용 횟수 : 3 인용 특허 : 30

초록
▼

A fluid shovel apparatus that pushes and lifts loose material such as snow, leaves, sand, dirt, grass clippings, mulch, or the like. The present invention includes at least one fluid exhaust port located in a blade. Pressurized fluid flows through the blade and ejects out through the at least one fluid exhaust port towards loose material. The loose material floats on a cushion of pressurized fluid that forms between the blade and the loose material. The loose material is pushed away from the blade and is lifted in an upward direction. Additionally, the fluid shovel apparatus may further include a brush assembly and an ice scraper blade to assist in removing material from a surface of a motor vehicle. Additionally, the fluid shovel apparatus may be used to deliver a fire suppressant pressurized fluid upon a material that is burning.

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청구항
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We claim: 1. A fluid shovel apparatus comprising: a blade with a concave curving surface including a lower surface of the blade and a leading scraper edge adjacent to the lower surface of the blade; a flat entrance surface adjacent to the leading scraper edge of the blade; an upper surface of the blade; a rear face and a front face of the blade; at least one fluid exhaust port extending through the blade from the rear face of the blade to the front face of the blade; at least one pressure apparatus for providing a pressurized fluid; a conduit system for transporting the pressurized fluid from each pressure apparatus to each fluid exhaust port, wherein each fluid exhaust port is adjacent to the lower surface of the blade, wherein the conduit system comprises at least one separate straight jet duct protruding from the rear face of the blade for each fluid exhaust port and at least one inlet duct connecting the at least one separate straight jet duct with the at least one pressure apparatus, wherein the pressurized fluid is ejected through each fluid exhaust port extending through the blade from the rear face of the blade to the front face of the blade, wherein each straight jet duct is angled such that at least a portion of the pressurized fluid is propelled in a forward direction away from the front face of the blade and in a downward direction sweeping across the flat entrance surface and over the leading scraper edge of the blade to directly impinge upon a pile of loose material; and a propulsion member attached to the blade for pushing the blade in the forward direction towards the pile of loose material. 2. The fluid shovel apparatus of claim 1, wherein a centerline of each straight jet duct is essentially pointed at the leading scraper edge of the blade. 3. The fluid shovel apparatus of claim 1, wherein the straight jet duct is circular in cross section. 4. The fluid shovel apparatus of claim 3, wherein a length of each straight jet duct leading to each fluid exhaust port is at least about three times a diameter of the straight jet duct leading to each fluid exhaust port. 5. The fluid shovel apparatus of claim 1, wherein the leading scraper edge is in contact with a support surface when a handle portion of the propulsion member is at a first height above the support surface and wherein the leading scraper edge is elevated above the support surface and at least one low friction support assembly attached to the blade contacts the support surface when the handle of the propulsion member is at a second height above the support surface. 6. The fluid shovel apparatus of claim 5, wherein the low friction support assembly includes at least one wheel assembly, wherein each wheel assembly includes a wheel, wherein each wheel is pointed in a direction perpendicular to the leading scraper edge of the blade. 7. The fluid shovel apparatus of claim 5, wherein the low friction support assembly includes at least one skid runner. 8. The fluid shovel apparatus of claim 1, wherein at least one straight jet duct is perpendicular to the leading scraper edge. 9. The fluid shovel apparatus of claim 1, wherein at least one straight jet duct is at an acute angle relative to the leading scraper edge. 10. The fluid shovel apparatus of claim 1, wherein an inlet duct of the conduit system is inline with the propulsion member. 11. The fluid shovel apparatus of claim 1, wherein the pressure apparatus is attached to the conduit system with a removable flexible coupling. 12. The fluid shovel apparatus of claim 1, wherein the main propulsion member is adjustable in length to reach the pressure apparatus. 13. The fluid shovel apparatus of claim 1, wherein the pressure apparatus is attached to the main propulsion member with a clamping assembly. 14. The fluid shovel apparatus of claim 1, wherein a yaw angle of the blade is at an angle between about 20 degrees and 45 degrees with respect to the main propulsion member. 15. The fluid shovel apparatus of claim 1, wherein the pressure apparatus is a portable leaf blower. 16. The fluid shovel apparatus of claim 15, wherein the portable leaf blower is selected from the group consisting of a gasoline engine powered blower, an electric powered blower and a backpack blower. 17. The fluid shovel apparatus of claim 1, wherein the propulsion member includes a side mounted member to assist an operator in guiding movement of the blade. 18. The fluid shovel apparatus of claim 1, wherein each fluid exhaust port lies between stiffener ribs on the blade. 19. The fluid shovel apparatus of claim 1, wherein the conduit system is attached to the pressure apparatus with a flexible hose. 20. The fluid shovel apparatus of claim 1, wherein the pressure apparatus provides pressurized fluid to each fluid exhaust port in a plurality of blades. 21. The fluid shovel apparatus of claim 1, further including a brush assembly attached to the lower surface of the blade and an ice scrapper blade attached to the leading scrapper edge of the blade. 22. The fluid shovel apparatus of claim 1, wherein the pressurized fluid is selected from the group consisting of air, nitrogen, water, carbon dioxide, fire suppressant foam, fire extinguishing gas and fire extinguishing powder. 23. A method for pushing and lifting loose material, comprising the steps of: providing a blade with at least one fluid exhaust port extending through the blade from a rear face of the blade to a front face of the blade; providing a conduit system comprising at least one separate straight jet duct protruding from the rear face of the blade for each fluid exhaust port; providing a pressurized fluid transported through the conduit system and ejecting from the at least one fluid exhaust port, wherein each straight jet duct is angled such that at least a portion of the pressurized fluid is propelled in a forward direction away from the front face of the blade and in a downward direction sweeping across a flat entrance surface and over a leading scraper edge of the blade to directly impinge upon a pile of loose material; pushing the blade towards the pile of loose material resting upon a support surface, wherein the pressurized fluid ejecting from the at least one fluid exhaust port extending through the blade from the rear face of the blade to the front face of the blade blows the pile of loose material away from the blade; and pulling the blade away from the pile of loose material allowing the pressurized fluid ejecting from the at least one fluid exhaust port extending through the blade from the rear face of the blade to the front face of the blade to remove remaining loose material from the support surface. 24. A method of extinguishing a fire, comprising the steps of: providing a blade with at least one fluid exhaust port extending through the blade from a rear face of the blade to a front face of the blade; providing a conduit system comprising at least one separate straight jet duct protruding from the rear face of the blade for each fluid exhaust port; providing a pressurized fluid transported through the conduit system including a fire suppressant fluid ejecting from the at least one fluid exhaust port, wherein each straight jet duct is angled such that at least a portion of the fire suppressant fluid is propelled in a forward direction away from the front face of the blade and in a downward direction sweeping across a flat entrance surface and over a leading scraper edge of the blade to directly impinge upon a combustible material; pushing the blade towards the combustible material that is on fire, wherein the pressurized fire suppressant fluid ejecting from the at least one fluid exhaust port extending through the blade from the rear face of the blade to the front face of the blade extinguishes the fire on the combustible material; and pulling the blade away from the material allowing the pressurized fire suppressant fluid ejecting from the at least one fluid exhaust port extending through the blade from the rear face of the blade to the front face of the blade to prevent additional combustion of the material.

이 특허에 인용된 특허 (30)

이 특허를 인용한 특허 피인용횟수: 3

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Fluid shovel apparatus and method

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Fluid shovel apparatus and method

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이 특허에 인용된 특허 (30)

이 특허를 인용한 특허 피인용횟수: 3

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