US1530010A - Safety hook - Google Patents

Safety hook Download PDF

Info

Publication number
US1530010A
US1530010A US741018A US74101824A US1530010A US 1530010 A US1530010 A US 1530010A US 741018 A US741018 A US 741018A US 74101824 A US74101824 A US 74101824A US 1530010 A US1530010 A US 1530010A
Authority
US
United States
Prior art keywords
latch
hook
lever
rope
tooth
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.)
Expired - Lifetime
Application number
US741018A
Inventor
Neilson Albert Howard
Original Assignee
Neilson Albert Howard
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Neilson Albert Howard filed Critical Neilson Albert Howard
Priority to US741018A priority Critical patent/US1530010A/en
Application granted granted Critical
Publication of US1530010A publication Critical patent/US1530010A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C1/00Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
    • B66C1/10Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
    • B66C1/22Rigid members, e.g. L-shaped members, with parts engaging the under surface of the loads; Crane hooks
    • B66C1/34Crane hooks
    • B66C1/36Crane hooks with means, e.g. spring-biased detents, for preventing inadvertent disengagement of loads
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T24/00Buckles, buttons, clasps, etc.
    • Y10T24/45Separable-fastener or required component thereof [e.g., projection and cavity to complete interlock]
    • Y10T24/45225Separable-fastener or required component thereof [e.g., projection and cavity to complete interlock] including member having distinct formations and mating member selectively interlocking therewith
    • Y10T24/45272Projection passes through cavity then moves toward noninserted portion of its member to complete interlock [e.g., snap hook]
    • Y10T24/45288Hook type projection member
    • Y10T24/45304Noninserted portion of projection member includes movably connected gate for closing access throat
    • Y10T24/45319Pivotally connected gate
    • Y10T24/45335Pivotally connected gate having means biasing gate about pivot
    • Y10T24/4534Pivotally connected gate having means biasing gate about pivot and position locking-means for gate

Description

March 17, 1925. 1,530,010
A. H. NEILSON j SAFETY HOOK Filed OCQ, l. 1924 ai INVENTOR ijf/Ii Zow/ All WITNEssEs 44 ATTORNEYS Patented Mar. 17, 1925.,`
,UNITED STATES V ALBERT HOWARD Neilson or TULSA, OKLAHOMA.
SAFETY HOOK.
Application filed October 1, 1924. Serial No. 741,018.l
To'. all 107mm it may concern.'
Be it known that I, ALBERT HowARn NE1L- soN, a citizen ofthe United States, and a resident of Tulsa, in the county of Tulsa l and State of Oklahoma, have invented certain new and useful Improvements in Safety Hooks, of which the following is a specication.
This invention relates to an improvement in safety hooks, andthe object of the inven- A tion is to provide a safety hook wherein the rope, cable7 or other element to be engaged with the hook may be readily and 'easily associated therewith, and whenl so associated serves to close or lock the hook whereby accidental displacement of the rope or cable from the hook is prevented, the safety hook being at the same time so constructed and organized that the rope or cable may be readily taken fromthe hook when desired.
Another object is to provide a safety hook of this character and having these advantages and which is also of simple and dur-` able construction, reliable in operation and easy and comparatively inexpensive to manufacture.
Other objects andadvantages of the invention reside in certain novelfeatures of the construction, combination and arrangement of parts which will be hereinafter more fully described and particularly pointed out in the appended claims, reference being had to the accompanying` drawings forming part of this specification, and-inwhich:
illustrating one embodiment of the invention;
Figure 2 is a view thereof in longitudinal vertical section;
Figure 3 is a view in longitudinal vertical section; showing a slightly diiferent form f numeral 10 designates generally the hook constituting the present invention which in-.
Figure 1 is a view in side elevation and.
Referring to the drawings wherein for cludes a body portion llhollowed out to form a chamber 12. The forward end of the chamber 12 is closed by awall 13 integral wlth the body portion whereas the rear end of the chamber is open, as indicated at 111. A removable plate 15`is provided on one side.
of the body portion 1.1 andprovides for ready accessto the interior of the chamber 12 and assembly of the parts therein as will hereinafter more fully appear. The bill of thehook, designated at 16, is integrally indicated at 19 and which overlies the inclined face 17 of the bill at a point somewhat spaced from the bight 18 so that the chamber 12 is opened to the bill of the hook above the bight or seat 18 thereof.
A latch, designated generally at 20 is provided and is pivotally mounted. asat 21, on the body portion 11 of the hook. The latch 20 includes a setting finger 22 and a retaining linger 23 which define between thema 'recess or pocket 24: in which the rope, cable or other element engaged with the hook is adapted to be received. As clearly shown in Figure 2 the latch is so positioned on the body portion of the hook that in one position thereof the setting linger 22 lies across and ahead of the seat 18, as clearly shown in dotted'lines in Figure 2.' Vhen, so positioned the setting finger 22 adapted to be engaged by the cable, rope or other element when thel same is applied to or associated with the hook so that as the cable or rope .slides down the inclined surface 17 onto the seat 18 it willbe shifted from the position shown in dotted lines in Figure 2 to the po-y sition shown in full lines wherein the retaining finger 23is disposed across-the entrance to the hook.
A locking` lever, designated generally .at 25 is provided and isfulcrumed, as at 26. on the body portion 11. l At the lend ofthe lever 25 opposite its fulcrum 26 it is provided with a handle portion 27 which is readily accessible from the open cnd 14 of the body portion. A compression coil spring 28 engages the locking lever 25 at one end and the upper wall of the chamber" l2 vat* its opposite end and tends to urge the locking lever' into engagement with the latch. Preferably the ends of the spring 28 are received Lin recesses 252L and lla provided therefor in the lock lever and the body portion respectively. rlhe latch 20 is provided with a stop shoulder 30 and with ai to'otli 3l having'A an inclined face and a flat face, the flat face being vertical inone position. The lockv lever 25 is provided with ai tooth 82 which is cooperable with the stop shoulder 80'for limiting the open movement of tl'ie-`latc'h 2O and which is coopera'ble with the tooth 81 for holdngthe latch 20 in closed position that is in the position shown in full lines in Fig n'rev2. Vith the parts positioned asshown in dotted lines in Figure 2 the hook is set ready to receive the' cable, chain, rope or other element to be associated therewith. vWhen the rope is introduced intojthe hook it `will engagev the' finger 22 and will shift the latch ina clock-wise direction as viewed in Figi'ire 2, the inclined snr'faceof the tooth 31 camining' the locking lever 25 upwardly to permit of this movement ofthe latch. lVli'en the latch has been thrown to the fnll line position shown in Figure 2 the spring' 28 will have caused the tooth 32T of the locking lever to snap in position behind' the'tooth 31 of the' latch that is intoengagementV with the flat vertical face' of tlie'settiiiigJ tooth 3l. lThe engagement otv these teeth 3l and 82 prevent the latch from swinging' in a counterclockwise direction, as viewed in Fignre 2v and consequently precludes the possibility of the cable or rope slipping from the hook. When itis desired to release the clable or rope from the hook the handle portion 2 7 is grasped and the locking lever is raised upwardly about its fnlcru'rn to disei'igage the teeth 32 fromthe tooth 3l whe-renpon the rope or cable may be readily pulled from the` hook since the latch is freely r'otatable to permit of disengagement ot the hook from the chain or cable. y
In the form of the invention shown in Figure 3 the hook is designated at 85, and is identical in all respect-s with that disclosed in Figures l and 2, the only differ-A ence residing in the form of latching mechanism employed. This latching mechanism includes a latch member, designated generally at 36 and having a shank 37 pivotally mounted, as at 38, on the bod'y7 portion of the hook. At is ends opposite thepivot 88 the latch member has connected thereto a curved and hooked shaped retaining linger' 39, The shank is partially cut away to provide o shoulder 40 for a purpose which will' presently appear. A locking lever, designated generally at 41, is provided andv is fulcrumed, as at 42, upon the body portion of the hook. The locking lever rincludes an arm 42 partially cut away to enable the arm to cooperate with the shoulder 40 of the shank 37 of the latch. The lever 41 also includes a second arm 44 extending at right angles to the` arm 42 and having its outer end concaved and shaped as at 45, to engage the rope, cable or the like. lVith this arrangement the rope, cable or other element to be engaged with the hook may be associated with the hook at any time since it will coact with the inclined or camming surface 39 of the retaining linger 39 to lift the finger to permit of entrance of the rope, chain or cable. Once the cable has entered the hook the retainingv finger' will' drop", as' shown in full lines" in Figure 3. lVhen within the ho'ok the rope,l chain or cable'v will! seat against the end 45 of the arm 44 so to' hol-d the lever 4l in position tor seciire the latch against opening movement. It i-s to be nn derst'ood` that the engagement ofthe cable with the end 44 of the arm ofthe lever tends to swing the arm 42 of the lever in' a clockwise direction, as viewed in Figure 3 and thi'is tends tol bring' the shoulder 43vk intoengagement with the shank 37 of the latch to hold the same against openingmovement.
I claim: y l. A safety hook'having a latch provided with' a setting finger and a retainingr finger,
the setting finger being adapted to be actuated by the element engaged with the hook to throw the latch to closedk position wherein its retaining finger pre-vents displacement of the element from the hook, said latch havingastop shoulder and a tooth provided with a flat face and a curved face, a locking lever having a tooth provided with'aiiat tace engageable with the' stopshoulder of the latcli for limiting the opening movement of the latch and engageablc with the flat face ofthe tooth of the latch for holding the latchin closed position, the tooth of the lever also 'having a curved face cooperable with the curved face of the tooth of the latch for permittingv the latch to move fromr open to closed position, and a spring pressingthe lever into engagement with the latch,
2. A safety hook having a latch provided with a setting linger and a retaining finger,
the element from the hook', said latch having atooth provided with a r`flat face and a curved face, a 'locking'. lever having' a tooth provided with a flat face engageable with the flat face of the tooth of the latch for holding the latch in closed position.v the tooth ofthe lever also having a' curved. facey oooperabie with the curved face of the tooth of the gaging arm, said shank having a `shoulder,
latch for permitting the latch to move from said locking lever also having a shoulder enopen to closed position, and a spring pressgageable with the shoulder of the shank of 10 ing` the lever into engagement With the latch. the latch to hold the latch in position to close 3. A safety hook having a latch ncludthe hook. ing a pivoted shank and a curved` retaining finger, and a locking lever having a rope en- ALBERT HOWARD NEILSON.
US741018A 1924-10-01 1924-10-01 Safety hook Expired - Lifetime US1530010A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US741018A US1530010A (en) 1924-10-01 1924-10-01 Safety hook

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US741018A US1530010A (en) 1924-10-01 1924-10-01 Safety hook

Publications (1)

Publication Number Publication Date
US1530010A true US1530010A (en) 1925-03-17

Family

ID=24979025

Family Applications (1)

Application Number Title Priority Date Filing Date
US741018A Expired - Lifetime US1530010A (en) 1924-10-01 1924-10-01 Safety hook

Country Status (1)

Country Link
US (1) US1530010A (en)

Cited By (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2866247A (en) * 1955-10-11 1958-12-30 United States Steel Corp Safety lock for crane hook
US20040232282A1 (en) * 2003-01-17 2004-11-25 Dennis Brian D. Methods and apparatuses for capturing and recovering unmanned aircraft, including a cleat for capturing aircraft on a line
WO2005014390A2 (en) * 2003-01-17 2005-02-17 The Insitu Group Methods and apparatuses for storing, launching, and capturing unmanned aircraft
US20050093507A1 (en) * 2003-11-03 2005-05-05 Sliwa Steven M. Methods and systems for starting propeller-driven devices
US20050133665A1 (en) * 2003-01-17 2005-06-23 Dennis Brian D. Methods and apparatuses for capturing unmanned aircraft and constraining motion of the captured aircraft
US20050151014A1 (en) * 2003-01-17 2005-07-14 Mcgeer Brian T. Methods and apparatuses for launching, capturing, and storing unmanned aircraft, including a container having a guide structure for aircraft components
US20050151009A1 (en) * 2003-01-17 2005-07-14 Cory Roeseler Methods and apparatuses for launching unmanned aircraft, including methods and apparatuses for launching aircraft with a wedge action
US20050178894A1 (en) * 2003-01-17 2005-08-18 Mcgeer Brian T. Methods and apparatuses for launching unmanned aircraft, including methods and apparatuses for releasably gripping aircraft during launch
US20050178895A1 (en) * 2003-01-17 2005-08-18 Mcgeer Brian T. Methods and apparatuses for launching unmanned aircraft, including releasably gripping aircraft during launch and braking subsequent grip motion
US20050189450A1 (en) * 2003-04-01 2005-09-01 Cory Roeseler Methods and apparatuses for launching airborne devices along flexible elongated members
US20050230536A1 (en) * 2003-01-17 2005-10-20 Dennis Brian D Methods and apparatuses for capturing and storing unmanned aircraft, including methods and apparatuses for securing the aircraft after capture
US20060038067A1 (en) * 2003-01-17 2006-02-23 Dennis Brian D Methods and apparatuses for launching and capturing unmanned aircraft, including a combined launch and recovery system
US20060102783A1 (en) * 2003-01-17 2006-05-18 Dennis Brian D Methods and apparatuses for capturing and recovering unmanned aircraft, including extendable capture devices
US20060151667A1 (en) * 2003-01-17 2006-07-13 Dennis Brian D Methods and apparatuses for launching unmanned aircraft, including methods and apparatuses for transmitting forces to the aircraft during launch
US20090189016A1 (en) * 2008-01-25 2009-07-30 Insitu, Inc. Systems and methods for recovering and controlling post-recovery motion of unmanned aircraft
US7806366B2 (en) 2007-07-10 2010-10-05 Insitu, Inc. Systems and methods for capturing and controlling post-recovery motion of unmanned aircraft
US20110113602A1 (en) * 2009-11-16 2011-05-19 Chen zhi-jia Safety hook for fall arrest system
US8523253B1 (en) 2012-04-05 2013-09-03 Konecranes Plc. Lifting assembly
US8944373B2 (en) 2010-09-27 2015-02-03 Insitu, Inc. Line capture devices for unmanned aircraft, and associated systems and methods
US20150181987A1 (en) * 2012-06-07 2015-07-02 Memi S.r.l. Closing device, particularly for jewels and the like
US9266610B2 (en) 2011-11-15 2016-02-23 Insitu, Inc. Controlled range and payload for unmanned vehicles, and associated systems and methods
US9543730B2 (en) * 2014-12-15 2017-01-10 Tyco Electronics Corporation Wire transfer system having wire singulating device
US9896222B2 (en) 2014-11-20 2018-02-20 Insitu, Inc. Capture devices for unmanned aerial vehicles, including track-borne capture lines, and associated systems and methods
US9944408B2 (en) 2009-04-24 2018-04-17 Insitu, Inc. Systems and methods for recovering and controlling post-recovery motion of unmanned aircraft
AU2016250386B2 (en) * 2003-01-17 2018-09-20 Insitu, Inc. Methods and apparatuses for capturing and recovering unmanned aircraft, including a cleat for capturing aircraft on a line
US10399674B2 (en) 2014-07-28 2019-09-03 Insitu, Inc. Systems and methods countering an unmanned air vehicle
US10407181B2 (en) 2016-06-27 2019-09-10 Insitu, Inc. Locking line capture devices for unmanned aircraft, and associated systems and methods
DE102018133353A1 (en) * 2018-12-21 2020-06-25 RMR Engineering GbR (vertretungsberechtigte Gesellschafter: Manfred Redder, 59379 Selm; Wilfried Mertens, 44534 Lünen; Elisabeth Roling, 59394 Nordkirchen) Shortening hook
US10767682B2 (en) 2017-06-29 2020-09-08 Insitu, Inc. Frangible fasteners with flexible connectors for unmanned aircraft, and associated systems and methods
US10933997B2 (en) 2015-10-02 2021-03-02 Insitu, Inc. Aerial launch and/or recovery for unmanned aircraft, and associated systems and methods

Cited By (59)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2866247A (en) * 1955-10-11 1958-12-30 United States Steel Corp Safety lock for crane hook
US20070075185A1 (en) * 2003-01-17 2007-04-05 The Insitu Group, Inc. Methods and apparatuses for launching unmanned aircraft, including releasably gripping aircraft during launch and braking subsequent grip motion
WO2005014390A2 (en) * 2003-01-17 2005-02-17 The Insitu Group Methods and apparatuses for storing, launching, and capturing unmanned aircraft
AU2016250386B2 (en) * 2003-01-17 2018-09-20 Insitu, Inc. Methods and apparatuses for capturing and recovering unmanned aircraft, including a cleat for capturing aircraft on a line
US20050133665A1 (en) * 2003-01-17 2005-06-23 Dennis Brian D. Methods and apparatuses for capturing unmanned aircraft and constraining motion of the captured aircraft
US20050151014A1 (en) * 2003-01-17 2005-07-14 Mcgeer Brian T. Methods and apparatuses for launching, capturing, and storing unmanned aircraft, including a container having a guide structure for aircraft components
US20050151009A1 (en) * 2003-01-17 2005-07-14 Cory Roeseler Methods and apparatuses for launching unmanned aircraft, including methods and apparatuses for launching aircraft with a wedge action
US20040232282A1 (en) * 2003-01-17 2004-11-25 Dennis Brian D. Methods and apparatuses for capturing and recovering unmanned aircraft, including a cleat for capturing aircraft on a line
US20050178895A1 (en) * 2003-01-17 2005-08-18 Mcgeer Brian T. Methods and apparatuses for launching unmanned aircraft, including releasably gripping aircraft during launch and braking subsequent grip motion
US7712702B2 (en) 2003-01-17 2010-05-11 Insitu, Inc. Methods and apparatuses for launching unmanned aircraft, including releasably gripping aircraft during launch and breaking subsequent grip motion
US20050230536A1 (en) * 2003-01-17 2005-10-20 Dennis Brian D Methods and apparatuses for capturing and storing unmanned aircraft, including methods and apparatuses for securing the aircraft after capture
US20060038067A1 (en) * 2003-01-17 2006-02-23 Dennis Brian D Methods and apparatuses for launching and capturing unmanned aircraft, including a combined launch and recovery system
WO2005014390A3 (en) * 2003-01-17 2006-03-23 Insitu Group Methods and apparatuses for storing, launching, and capturing unmanned aircraft
US20060102783A1 (en) * 2003-01-17 2006-05-18 Dennis Brian D Methods and apparatuses for capturing and recovering unmanned aircraft, including extendable capture devices
US7059564B2 (en) * 2003-01-17 2006-06-13 The Insitu Group, Inc. Methods and apparatuses for capturing and recovering unmanned aircraft, including a cleat for capturing aircraft on a line
US7066430B2 (en) 2003-01-17 2006-06-27 The Insitu Group, Inc. Methods and apparatuses for capturing and recovering unmanned aircraft, including extendable capture devices
US20060151667A1 (en) * 2003-01-17 2006-07-13 Dennis Brian D Methods and apparatuses for launching unmanned aircraft, including methods and apparatuses for transmitting forces to the aircraft during launch
US20060175463A1 (en) * 2003-01-17 2006-08-10 The Insitu Group, Inc. Methods and apparatuses for launching, capturing, and storing unmanned aircraft, including a container having a guide structure for aircraft components
US7090166B2 (en) 2003-01-17 2006-08-15 The Insitu Group, Inc. Methods and apparatuses for launching unmanned aircraft, including methods and apparatuses for transmitting forces to the aircraft during launch
US7104495B2 (en) 2003-01-17 2006-09-12 The Insitu Group, Inc. Methods and apparatuses for launching, capturing, and storing unmanned aircraft, including a container having a guide structure for aircraft components
US7114680B2 (en) 2003-01-17 2006-10-03 The Insitu Group, Inc. Methods and apparatuses for launching and capturing unmanned aircraft, including a combined launch and recovery system
US7121507B2 (en) 2003-01-17 2006-10-17 The Insitu Group, Inc. Methods and apparatuses for capturing and storing unmanned aircraft, including methods and apparatuses for securing the aircraft after capture
US7128294B2 (en) 2003-01-17 2006-10-31 The Insitu Group, Inc. Methods and apparatuses for launching unmanned aircraft, including methods and apparatuses for launching aircraft with a wedge action
US7140575B2 (en) 2003-01-17 2006-11-28 The Insitu Group, Inc. Methods and apparatuses for launching unmanned aircraft, including methods and apparatuses for releasably gripping aircraft during launch
US7360741B2 (en) 2003-01-17 2008-04-22 Insitu, Inc. Methods and apparatuses for launching unmanned aircraft, including releasably gripping aircraft during launch and breaking subsequent grip motion
US7152827B2 (en) 2003-01-17 2006-12-26 The Insitu Group, Inc. Methods and apparatuses for launching, capturing, and storing unmanned aircraft, including a container having a guide structure for aircraft components
US7165745B2 (en) 2003-01-17 2007-01-23 The Insitu Group, Inc. Methods and apparatuses for launching unmanned aircraft, including releasably gripping aircraft during launch and braking subsequent grip motion
US7175135B2 (en) 2003-01-17 2007-02-13 The Insitu Group, Inc. Methods and apparatuses for capturing unmanned aircraft and constraining motion of the captured aircraft
US20070252034A1 (en) * 2003-01-17 2007-11-01 The Insitu Group, Inc. Methods and apparatuses for launching unmanned aircraft, including releasably gripping aircraft during launch and braking subsequent grip motion
US20050178894A1 (en) * 2003-01-17 2005-08-18 Mcgeer Brian T. Methods and apparatuses for launching unmanned aircraft, including methods and apparatuses for releasably gripping aircraft during launch
US7143974B2 (en) 2003-04-01 2006-12-05 The Insitu Group, Inc. Methods and apparatuses for launching airborne devices along flexible elongated members
US20050189450A1 (en) * 2003-04-01 2005-09-01 Cory Roeseler Methods and apparatuses for launching airborne devices along flexible elongated members
US7182290B2 (en) 2003-11-03 2007-02-27 The Insitu Group, Inc. Methods and systems for starting propeller-driven devices
US20050093507A1 (en) * 2003-11-03 2005-05-05 Sliwa Steven M. Methods and systems for starting propeller-driven devices
US7806366B2 (en) 2007-07-10 2010-10-05 Insitu, Inc. Systems and methods for capturing and controlling post-recovery motion of unmanned aircraft
US20090189016A1 (en) * 2008-01-25 2009-07-30 Insitu, Inc. Systems and methods for recovering and controlling post-recovery motion of unmanned aircraft
US7798445B2 (en) 2008-01-25 2010-09-21 Insitu, Inc. Systems and methods for recovering and controlling post-recovery motion of unmanned aircraft
US9944408B2 (en) 2009-04-24 2018-04-17 Insitu, Inc. Systems and methods for recovering and controlling post-recovery motion of unmanned aircraft
US10843817B2 (en) 2009-04-24 2020-11-24 Insitu, Inc. Systems and methods for recovering and controlling post-recovery motion of unmanned aircraft
US20110113602A1 (en) * 2009-11-16 2011-05-19 Chen zhi-jia Safety hook for fall arrest system
US8128141B2 (en) * 2009-11-16 2012-03-06 Yoke Industrial Corp. Safety hook for fall arrest system
US9856036B2 (en) 2010-09-27 2018-01-02 Insitu, Inc. Line capture devices for unmanned aircraft, and associated systems and methods
US8944373B2 (en) 2010-09-27 2015-02-03 Insitu, Inc. Line capture devices for unmanned aircraft, and associated systems and methods
US9340301B2 (en) 2010-09-27 2016-05-17 Insitu, Inc. Line capture devices for unmanned aircraft, and associated systems and methods
US9266610B2 (en) 2011-11-15 2016-02-23 Insitu, Inc. Controlled range and payload for unmanned vehicles, and associated systems and methods
US9868527B2 (en) 2011-11-15 2018-01-16 Insitu, Inc. Controlled range and payload for unmanned vehicles, and associated systems and methods
US10501178B2 (en) 2011-11-15 2019-12-10 Insitu, Inc. Controlled range and payload for unmanned vehicles, and associated systems and methods
US9061866B2 (en) 2012-04-05 2015-06-23 Konecranes Plc Lifting assembly
US8833822B2 (en) 2012-04-05 2014-09-16 Konecranes Plc. Lifting assembly
US8523253B1 (en) 2012-04-05 2013-09-03 Konecranes Plc. Lifting assembly
US20150181987A1 (en) * 2012-06-07 2015-07-02 Memi S.r.l. Closing device, particularly for jewels and the like
US10399674B2 (en) 2014-07-28 2019-09-03 Insitu, Inc. Systems and methods countering an unmanned air vehicle
US9896222B2 (en) 2014-11-20 2018-02-20 Insitu, Inc. Capture devices for unmanned aerial vehicles, including track-borne capture lines, and associated systems and methods
US10513350B1 (en) 2014-11-20 2019-12-24 Insitu, Inc. Capture devices for unmanned aerial, vehicles, including track-borne capture lines, and associated systems and methods
US9543730B2 (en) * 2014-12-15 2017-01-10 Tyco Electronics Corporation Wire transfer system having wire singulating device
US10933997B2 (en) 2015-10-02 2021-03-02 Insitu, Inc. Aerial launch and/or recovery for unmanned aircraft, and associated systems and methods
US10407181B2 (en) 2016-06-27 2019-09-10 Insitu, Inc. Locking line capture devices for unmanned aircraft, and associated systems and methods
US10767682B2 (en) 2017-06-29 2020-09-08 Insitu, Inc. Frangible fasteners with flexible connectors for unmanned aircraft, and associated systems and methods
DE102018133353A1 (en) * 2018-12-21 2020-06-25 RMR Engineering GbR (vertretungsberechtigte Gesellschafter: Manfred Redder, 59379 Selm; Wilfried Mertens, 44534 Lünen; Elisabeth Roling, 59394 Nordkirchen) Shortening hook

Similar Documents

Publication Publication Date Title
US6832417B1 (en) Safety snap hook
US3977698A (en) Coupling hook for a tractor three-point hitch
US4440432A (en) Self-locking, quick release, latched hook
US4320561A (en) Hook, especially safety load hook
US5897148A (en) Catch for door latch detent lever
US1576352A (en) Hook
US653021A (en) Mooring-line attachment.
USRE16613E (en) Safety hook
US4071263A (en) Coupling hook for a three-point connection on a tractor
US731162A (en) Snap-hook.
US926156A (en) Hook.
US2197997A (en) Self-locking hook
US5033764A (en) Locking trailer coupling
US983647A (en) Latch.
US1982572A (en) Ladder snubber
US1554303A (en) Safety elevating hook
US2783059A (en) Self-coupling wagon hitch
US1263358A (en) Lock.
US3190685A (en) Automatic releasable grapple tongs for barrels and the like
US370983A (en) Snap-hook
US1062653A (en) Snap-hook.
US478245A (en) Henry vincent smith
US628619A (en) Harness-snap.
US1682617A (en) Safety hook
US1011198A (en) Safety-can.