US20200109035A1 - Silo Mountable Rescue Assembly - Google Patents
Silo Mountable Rescue Assembly Download PDFInfo
- Publication number
- US20200109035A1 US20200109035A1 US16/150,748 US201816150748A US2020109035A1 US 20200109035 A1 US20200109035 A1 US 20200109035A1 US 201816150748 A US201816150748 A US 201816150748A US 2020109035 A1 US2020109035 A1 US 2020109035A1
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- US
- United States
- Prior art keywords
- holes
- silo
- coupled
- pair
- tackle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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- 230000008878 coupling Effects 0.000 claims 11
- 238000010168 coupling process Methods 0.000 claims 11
- 238000005859 coupling reaction Methods 0.000 claims 11
- 230000000087 stabilizing effect Effects 0.000 claims 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- PUZPDOWCWNUUKD-UHFFFAOYSA-M sodium fluoride Chemical compound [F-].[Na+] PUZPDOWCWNUUKD-UHFFFAOYSA-M 0.000 description 2
- 208000003443 Unconsciousness Diseases 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C5/00—Base supporting structures with legs
- B66C5/02—Fixed or travelling bridges or gantries, i.e. elongated structures of inverted L or of inverted U shape or tripods
- B66C5/025—Tripods
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B1/00—Devices for lowering persons from buildings or the like
- A62B1/06—Devices for lowering persons from buildings or the like by making use of rope-lowering devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D3/00—Portable or mobile lifting or hauling appliances
- B66D3/02—Manually-operated, e.g. lever-actuated, devices operating on ropes, cables, or chains for hauling in a mainly horizontal direction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D3/00—Portable or mobile lifting or hauling appliances
- B66D3/04—Pulley blocks or like devices in which force is applied to a rope, cable, or chain which passes over one or more pulleys, e.g. to obtain mechanical advantage
- B66D3/06—Pulley blocks or like devices in which force is applied to a rope, cable, or chain which passes over one or more pulleys, e.g. to obtain mechanical advantage with more than one pulley
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/16—Details concerning attachment of head-supporting legs, with or without actuation of locking members thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
- F16M11/20—Undercarriages with or without wheels
- F16M11/24—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other
- F16M11/26—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other by telescoping, with or without folding
- F16M11/32—Undercarriages for supports with three or more telescoping legs
- F16M11/36—Members preventing slipping of the feet
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M13/00—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles
- F16M13/02—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles for supporting on, or attaching to, an object, e.g. tree, gate, window-frame, cycle
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B1/00—Devices for lowering persons from buildings or the like
- A62B1/06—Devices for lowering persons from buildings or the like by making use of rope-lowering devices
- A62B1/18—Other single parts for rope lowering-devices, e.g. take-up rollers for ropes, devices for shooting ropes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D2700/00—Capstans, winches or hoists
- B66D2700/02—Hoists or accessories for hoists
- B66D2700/026—Pulleys, sheaves, pulley blocks or their mounting
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M2200/00—Details of stands or supports
- F16M2200/02—Locking means
- F16M2200/025—Locking means for translational movement
- F16M2200/028—Locking means for translational movement by positive interaction, e.g. male-female connections
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Emergency Lowering Means (AREA)
Abstract
A silo-mountable rescue assembly for accessing a distressed person in a silo includes a tripod that is configured to couple to a top of a silo so that an apex of the tripod is substantially centrally positioned over an opening in the silo. A block and tackle is coupled to the tripod proximate to the apex. The block and tackle is configured to lower equipment and personnel into the silo to rescue a distressed person in the silo.
Description
- Not Applicable
- Not Applicable
- Not Applicable
- Not Applicable
- Not Applicable
- The disclosure and prior art relates to rescue assemblies and more particularly pertains to a new rescue assembly for accessing a distressed person in a silo.
- An embodiment of the disclosure meets the needs presented above by generally comprising a tripod that is configured to couple to a top of a silo so that an apex of the tripod is substantially centrally positioned over an opening in the silo. A block and tackle is coupled to the tripod proximate to the apex. The block and tackle is configured to lower equipment and personnel into the silo to rescue a distressed person in the silo.
- There has thus been outlined, rather broadly, the more important features of the disclosure in order that the detailed description thereof that follows may be better understood, and in order that the present contribution to the art may be better appreciated. There are additional features of the disclosure that will be described hereinafter and which will form the subject matter of the claims appended hereto.
- The objects of the disclosure, along with the various features of novelty which characterize the disclosure, are pointed out with particularity in the claims annexed to and forming a part of this disclosure.
- The disclosure will be better understood and objects other than those set forth above will become apparent when consideration is given to the following detailed description thereof. Such description makes reference to the annexed drawings wherein:
-
FIG. 1 is a side view of a silo-mountable rescue assembly according to an embodiment of the disclosure. -
FIG. 2 is a top view of an embodiment of the disclosure. -
FIG. 3 is an isometric perspective view of an embodiment of the disclosure. -
FIG. 4 is an in-use view of an embodiment of the disclosure. -
FIG. 5 is an isometric perspective view of an embodiment of the disclosure. -
FIG. 6 is an isometric perspective view of an embodiment of the disclosure. - With reference now to the drawings, and in particular to
FIGS. 1 through 6 thereof, a new rescue assembly embodying the principles and concepts of an embodiment of the disclosure and generally designated by thereference numeral 10 will be described. - As best illustrated in
FIGS. 1 through 6 , the silo-mountable rescue assembly 10 generally comprises atripod 12 that is configured to couple to a top of a silo so that anapex 14 of thetripod 12 is substantially centrally positioned over an opening in the silo. Thetripod 12 comprises adisc 16 and a set of threerods 18. Eachrod 18 is coupled to and extends transversely from acircumference 20 of thedisc 16, as shown inFIG. 2 . Eachrod 18 has aterminus 22 distal from thedisc 16. Thetermini 22 of therods 18 are triangularly positioned. Therods 18 are pivotally coupled to thedisc 16, as shown inFIG. 5 , allowing therods 18 to be selectively positioned in a deployed configuration, as shown inFIG. 4 . Therods 18 are rectangularly shaped when viewed longitudinally. - Each
rod 18 comprises anupper segment 24. Alower segment 26 is selectively extensible from theupper segment 24. A pair offirst holes 28 is positioned singly inopposing sides 30 of theupper segment 24 proximate to alower end 32 of theupper segment 24 so that thefirst holes 28 are aligned, as shown inFIG. 3 . A plurality of pairs ofsecond holes 34 is positioned in thelower segment 26. Each pair ofsecond holes 34 is positioned singly inopposing faces 36 of thelower segment 26 so that the pair ofsecond holes 34 is selectively alignable with the pair offirst holes 28. - A
pin 38 is selectively insertable through the pair offirst holes 28 and a respective pair ofsecond holes 34 to fixedly position thelower segment 26 relative to theupper segment 24, as shown inFIG. 3 . Aline 40 is coupled to and extends between thepin 38 and theupper segment 24 of therod 18. Theline 40 is positioned to retain thepin 38 in proximity to the pair offirst holes 28. Theline 40 comprises aretractile coil cord 42, as shown inFIG. 3 , that is configured to be stretched to position thepin 38 to insert through the pair offirst holes 28 and the respective pair ofsecond holes 34. - A
footing 44 is coupled to and extends from abottom end 46 of thelower segment 26, as shown inFIG. 3 . Thefooting 44 is configured to be positioned on a rim of the opening of the silo to stabilize therod 18 relative to the silo. Thefooting 44 is pivotally coupled to thelower segment 26 so that so that thefooting 44 is configured to be positioned flush to the rim of the opening, as shown inFIG. 4 . - A
plate 48 is coupled to and extends substantially perpendicularly from thelower segment 26 proximate to thebottom end 46, as shown inFIG. 6 . A pair ofcutouts 50 is positioned in theplate 48 to define atab 52. Achain 54 is coupled to and extends from thelower segment 26 proximate to thebottom end 46. Thechain 54 is configured to loopedly position around the perimeter ring of the silo, as shown inFIG. 4 , positioning arespective link 56 of thechain 54 to insert thetab 52 to couple thechain 54 around the perimeter ring to secure therod 18 to the silo. - A
channel 58 extends through thefooting 44, as shown inFIG. 3 . Acable 60 is positioned through thechannel 58, as shown inFIG. 2 . Each of a pair ofsafety hooks 62 is coupled to a respectiveopposing end 64 of thecable 60. Thesafety hooks 62 are configured to hook to the rim of the opening in the silo to couple therod 18 to the silo. Thecable 60 and thesafety hooks 62 would be used to couple thetripod 12 to the silo when the silo lacks the perimeter ring around the opening, or to provide a secondary safety backup to thechain 54 when the silo has the perimeter ring around the opening. - A block and
tackle 66 is coupled to thetripod 12 proximate to theapex 14, as shown inFIG. 4 . The block andtackle 66 is gun tackle type or the like. The block andtackle 66 is configured to lower equipment and personnel into the silo to rescue a distressed person in the silo. For example, as shown inFIG. 4 , arescue basket 68 may be lowered into the silo using the block and tackle 66 so that the distressed person can enter therescue basket 68 and be rescued from the silo. In an event the distressed person is unconscious or otherwise incapacitated, a member of a rescue squad may be lowered to the silo using the block and tackle 66 to aid and medical attention to the distressed person. - A
tackle hook 70 is coupled to anupper end 72 of the block and tackle 66. Afirst ring 74 is coupled to afirst face 76 of thedisc 16, as shown inFIG. 5 . Thefirst ring 74 is positioned to selectively insert thetackle hook 70 to couple the block and tackle 66 to thetripod 12. Thefirst ring 74 is rotationally coupled to thedisc 16. - A
second ring 78 is coupled to asecond face 80 of thedisc 16, as shown inFIG. 5 . Thesecond ring 78 is positioned to selectively insert thetackle hook 70 to couple the block and tackle 66 to thetripod 12. Thesecond ring 78 is rotationally coupled to thedisc 16. With therods 18 being pivotally coupled to thedisc 16, either thefirst ring 74 or thesecond ring 78 can be positioned to couple to thetackle hook 70. - In use, the
tripod 12 is couple to the top of the silo using thechains 54. The apex 14 of thetripod 12 is substantially centrally positioned over the opening in the silo. Thetackle hook 70 of the block and tackle 66 is coupled to thefirst ring 74 or thesecond ring 78, positioning a member of a rescue squad to lower therescue basket 68 into the silo so that the distressed person can enter therescue basket 68 and be rescued from the silo. - With respect to the above description then, it is to be realized that the optimum dimensional relationships for the parts of an embodiment enabled by the disclosure, to include variations in size, materials, shape, form, function and manner of operation, assembly and use, are deemed readily apparent and obvious to one skilled in the art, and all equivalent relationships to those illustrated in the drawings and described in the specification are intended to be encompassed by an embodiment of the disclosure.
- Therefore, the foregoing is considered as illustrative only of the principles of the disclosure. Further, since numerous modifications and changes will readily occur to those skilled in the art, it is not desired to limit the disclosure to the exact construction and operation shown and described, and accordingly, all suitable modifications and equivalents may be resorted to, falling within the scope of the disclosure. In this patent document, the word “comprising” is used in its non-limiting sense to mean that items following the word are included, but items not specifically mentioned are not excluded. A reference to an element by the indefinite article “a” does not exclude the possibility that more than one of the element is present, unless the context clearly requires that there be only one of the elements.
Claims (16)
1. A silo-mountable rescue assembly comprising:
a tripod configured for coupling to a top of a silo such that an apex of the tripod is substantially centrally positioned over an opening in the silo, the tripod comprising:
a disc, and
a set of three rods, each rod being coupled to and extending transversely from a circumference of the disc, each rod having a terminus distal from the disc, the termini being triangularly positioned, each rod comprising
an upper segment,
a lower segment selectively extensible from the upper segment,
a pair of first holes, the first holes being positioned singly in opposing sides of the upper segment proximate to a lower end of the upper segment such that the first holes are aligned,
a plurality of pairs of second holes, each pair of second holes being positioned singly in opposing faces of the lower segment such that the pair of second holes is selectively alignable with the pair of first holes,
a pin selectively insertable through the pair of first holes and a respective pair of second holes for fixedly positioning the lower segment relative to the upper segment,
a plate coupled to and extending substantially perpendicularly from the lower segment proximate to the bottom end,
a pair of cutouts positioned in the plate defining a tab, and
a chain coupled to and extending from the lower segment proximate to the bottom end wherein the chain is configured for loopedly positioning around the perimeter ring of the silo positioning a respective link of the chain for inserting the tab for coupling the chain around the perimeter ring for securing the rod to the silo; and
a block and tackle coupled to the tripod proximate to the apex wherein the block and tackle is configured for lowering equipment and personnel into the silo for rescuing a distressed person in the silo.
2. (canceled)
3. The assembly of claim 1 , further including the rods being pivotally coupled to the disc.
4. The assembly of claim 1 , further including the rods being rectangularly shaped when viewed longitudinally.
5. (canceled)
6. The assembly of claim 1 , further including a line coupled to and extending between the pin and the upper segment of the rod wherein the line is positioned for retaining the pin in proximity to the pair of first holes.
7. A silo-mountable rescue assembly comprising:
a tripod configured for coupling to a top of a silo such that an apex of the tripod is substantially centrally positioned over an opening in the silo, the tripod comprising:
a disc, and
a set of three rods, each rod being coupled to and extending transversely from a circumference of the disc, each rod having a terminus distal from the disc, the termini being triangularly positioned, each rod comprising
an upper segment,
a lower segment selectively extensible from the upper segment,
a pair of first holes, the first holes being positioned singly in opposing sides of the upper segment proximate to a lower end of the upper segment such that the first holes are aligned,
a plurality of pairs of second holes, each pair of second holes being positioned singly in opposing faces of the lower segment such that the pair of second holes is selectively alignable with the pair of first holes,
a pin selectively insertable through the pair of first holes and a respective pair of second holes for fixedly positioning the lower segment relative to the upper segment,
a line coupled to and extending between the pin and the upper segment of the rod wherein the line is positioned for retaining the pin in proximity to the pair of first holes, the line comprising a retractile coil cord wherein the retractile coil cord is configured for stretching for positioning the pin for inserting through the pair of first holes and the respective pair of second holes; and
a block and tackle coupled to the tripod proximate to the apex wherein the block and tackle is configured for lowering equipment and personnel into the silo for rescuing a distressed person in the silo.
8. The assembly of claim 1 , further including a footing coupled to and extending from a bottom end of the lower segment wherein the footing is configured positioning on a rim of the opening of the silo for stabilizing the rod relative to the silo.
9. The assembly of claim 8 , further including the footing being pivotally coupled to the lower segment wherein the footing is positioned for pivoting relative to the lower segment such that the footing is configured for positioning flush to the rim of the opening.
10. (canceled)
11. The assembly of claim 8 , further comprising:
a channel extending through the footing;
a cable positioned through the channel; and
a pair of safety hooks, each safety hook being coupled to a respective opposing end of the cable wherein the safety hooks are configured for hooking to the rim of the opening in the silo for coupling the rod to the silo.
12. The assembly of claim 1 , further including the block and tackle being gun tackle type.
13. The assembly of claim 3 , further comprising:
a tackle hook coupled to an upper end of the block and tackle; and
a first ring coupled to a first face of the disc wherein the first ring is positioned for selectively inserting the tackle hook for coupling the block and tackle to the tripod.
14. The assembly of claim 13 , further including a second ring coupled to a second face of the disc wherein the second ring is positioned for selectively inserting the tackle hook for coupling the block and tackle to the tripod.
15. The assembly of claim 14 , further including the first ring and the second ring being rotationally coupled to the disc.
16. A silo-mountable rescue assembly comprising:
a tripod configured for coupling to a top of a silo such that an apex of the tripod is substantially centrally positioned over an opening in the silo, the tripod comprising:
a disc, and
a set of three rods, each rod being coupled to and extending transversely from a circumference of the disc, each rod having a terminus distal from the disc, the termini being triangularly positioned, the rods being pivotally coupled to the disc, the rods being rectangularly shaped when viewed longitudinally, each rod comprising:
an upper segment,
a lower segment selectively extensible from the upper segment,
a pair of first holes, the first holes being positioned singly in opposing sides of the upper segment proximate to a lower end of the upper segment such that the first holes are aligned,
a plurality of pairs of second holes, each pair of second holes being positioned singly in opposing faces of the lower segment such that the pair of second holes is selectively alignable with the pair of first holes,
a pin selectively insertable through the pair of first holes and a respective pair of second holes for fixedly positioning the lower segment relative to the upper segment,
a line coupled to and extending between the pin and the upper segment of the rod wherein the line is positioned for retaining the pin in proximity to the pair of first holes, the line comprising a retractile coil cord wherein the retractile coil cord is configured for stretching for positioning the pin for inserting through the pair of first holes and the respective pair of second holes,
a footing coupled to and extending from a bottom end of the lower segment wherein the footing is configured positioning on a rim of the opening of the silo for stabilizing the rod relative to the silo, the footing being pivotally coupled to the lower segment wherein the footing is positioned for pivoting relative to the lower segment such that the footing is configured for positioning flush to the rim of the opening,
a plate coupled to and extending substantially perpendicularly from the lower segment proximate to the bottom end,
a pair of cutouts positioned in the plate defining a tab,
a chain coupled to and extending from the lower segment proximate to the bottom end wherein the chain is configured for loopedly positioning around the perimeter ring of the silo positioning a respective link of the chain for inserting the tab for coupling the chain around the perimeter ring for securing the rod to the silo,
a channel extending through the footing,
a cable positioned through the channel, and
a pair of safety hooks, each safety hook being coupled to a respective opposing end of the cable wherein the safety hooks are configured for hooking to the rim of the opening in the silo for coupling the rod to the silo;
a block and tackle coupled to the tripod proximate to the apex wherein the block and tackle is configured for lowering equipment and personnel into the silo for rescuing a distressed person in the silo, the block and tackle being gun tackle type;
a tackle hook coupled to an upper end of the block and tackle;
a first ring coupled to a first face of the disc wherein the first ring is positioned for selectively inserting the tackle hook for coupling the block and tackle to the tripod, the first ring being rotationally coupled to the disc; and
a second ring coupled to a second face of the disc wherein the second ring is positioned for selectively inserting the tackle hook for coupling the block and tackle to the tripod, the second ring being rotationally coupled to the disc.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US16/150,748 US10611607B1 (en) | 2018-10-03 | 2018-10-03 | Silo mountable rescue assembly |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US16/150,748 US10611607B1 (en) | 2018-10-03 | 2018-10-03 | Silo mountable rescue assembly |
Publications (2)
Publication Number | Publication Date |
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US10611607B1 US10611607B1 (en) | 2020-04-07 |
US20200109035A1 true US20200109035A1 (en) | 2020-04-09 |
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US16/150,748 Expired - Fee Related US10611607B1 (en) | 2018-10-03 | 2018-10-03 | Silo mountable rescue assembly |
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US (1) | US10611607B1 (en) |
Families Citing this family (3)
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US20180236274A1 (en) * | 2017-02-22 | 2018-08-23 | Jeffrey D. Decker | Retrieval tower and rescue method for sloped roof structures |
US10781087B2 (en) * | 2017-09-28 | 2020-09-22 | Mark S. Soderberg | Trailer mounted capstan winch |
DE102019002039A1 (en) * | 2019-03-22 | 2020-09-24 | David Mann | Lifting device |
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USD730613S1 (en) | 2014-01-02 | 2015-05-26 | Viking Solutions, LLC | Tripod hoist apparatus |
US10233058B2 (en) * | 2016-01-29 | 2019-03-19 | Keppel Letourneau Usa, Inc. | Anti-two-block sensing systems |
US10737921B2 (en) * | 2017-03-14 | 2020-08-11 | Larry Wayne MOTLEY | Hoist-it |
US20180290868A1 (en) * | 2017-04-05 | 2018-10-11 | David R. Hall | Portable Hoisting Apparatus |
-
2018
- 2018-10-03 US US16/150,748 patent/US10611607B1/en not_active Expired - Fee Related
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