Retracting and locking animal leash

{
  "publication_number": "US4501230A",
  "country": "US",
  "kind": "A",
  "title": "Retracting and locking animal leash",
  "abstract": "A hand-held apparatus which dispenses, retracts and locks an animal leash in a desired position is disclosed characterized by a spool housing sized to store a length of cord and a handle portion adapted to be grasped in the hand of a user. The spool housing rotably mounts a spool having the length of cord wrapped thereabout with the distal end of the cord being attachable to an animal collar. A coil spring is mounted between the spool and spool housing to continuously bias the length of cord in a retracted position about the spool. A high strength locking mechanism adapted to selectively apply friction to the spool and positively prevent the cord from being dispensed or retracted from the spool is provided which is actuable by way of a trigger lever formed on the handle portion of the housing. A cam actuator stop is additionally provided to maintain the locking mechanism in a locked orientation.",
  "claims": [
    "1. A retracting and locking animal leash device comprising: a housing having a handle portion adapted to be grasped in the hand of a user and a reservoir portion adapted to store an elongate leash; a spool rotably mounted within said reservoir portion; an elongate leash positioned about said spool and extensible from said reservoir portion; means positioned within said reservoir portion for biasing said spool in a rotational direction to continuously urge said leash in a retracted orientation about said spool; a pair of conical shaped pad members positioned within said reservoir portion actuable to frictionally engaging said spool and preventing rotation of said spool; a trigger level pivotally mounted to said handle portion for actuating said brake means into frictional engagement with said spool; and locking means cooperating with said trigger lever for selectively maintaining said brake means in engagement with said spool; said spool having a pair of perripheral recesses formed in a complimentary configuration to said pair of conical-shaped pad members and said pair of conical-shaped pad members being mounted to said trigger lever.",
    "2. The device of claim 1 wherein said pair of conical-shaped pad members are pivotally mounted to said trigger lever to self-align with said peripheral recesses during engagement with said spool.",
    "3. The device of claim 2 further comprising means for biasing said trigger lever in a first position wherein said pair of pad members are spaced from said peripheral recesses.",
    "4. The device of claim 2 wherein said locking means comprises a cam mounted for rotational movement upon said housing.",
    "5. The device of claim 4 wherein said cam is pivotally mounted to said housing upon an eccentric axis.",
    "6. The device of claim 5 wherein said spool biasing means comprises a coil spring positioned within said reservoir portion.",
    "7. The device of claim 6 wherein said housing is formed of a pair of mating housing segments.",
    "8. The device of claim 7 wherein said trigger level extends along the length of said handle portion so as to be manipulated by the hand of said user."
  ],
  "description_excerpt": "The present invention relates to animal leashes and, more particularly, to an improved hand-held apparatus which dispenses, retracts and locks an animal leash in a desired position.\n\nAs is well known, it is customary practice to utilize a leash when exercising domestic pets such as dogs. Typically, prior art leashes have comprised an elongate chain or leather strap having one end adapted to be attached to the animal and the other end formed in a looped configuration adapted to be grasped by the hand of the user. By maintaining a grip on the looped end of the leash, the user may restrain the animal within suitable limits of the user. Although such prior art leashes have proven generally effective for their intended purpose, they possess inherent deficiencies which have detracted from their overall effectiveness.\n\nForemost of these deficiencies associated with the prior art leashes has been their inability to provide means for rapidly increasing or decreasing the length of the leash to suit the particular animal control situation. As such, it has heretofore been common practice for a user to wind the leash about his or her hand which is typically difficult to accomplish and often causes discomfort to the user's hand. Further, the prior art leashes have been highly susceptible to becoming tangled and have proven awkward in use often becoming wrapped about trees, fence posts, limbs and the like. In addition, due to their substantial length, the prior art leashes have been difficult to store in an organized manner when not in use.",
  "cpc": [
    "A01K 27/004"
  ],
  "ipc": [
    "A01K 27/00"
  ],
  "inventors": [
    "Arnold T. Talo"
  ],
  "filing_date": "1983-01-10",
  "publication_date": "1985-02-26",
  "grant_date": "1985-02-26",
  "priority_date": "1983-01-10",
  "application_number": "US-45682983-A",
  "family_id": "23814303",
  "cited_by_count": 115,
  "citations": [
    "US2047703A",
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    "US2919676A",
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    "US3693596A",
    "US4018189A",
    "US4202510A",
    "US4269150A"
  ]
}