The present invention is directed to a manually operated scooper and more particularly to a scooper with scoop jaws that form a chamber when closed that substantially completely encloses the object(s) scooped up.
Pets provide a great deal of joy and companionship to persons of all ages, including the elderly and infirm. No matter what the age, it has always been a challenge to dispose of fecal matter.
Many types of devices have been developed to enable a person to pick up and facilitate removal of many different types of objects without the person having to come into direct contact with the object. With an increasingly elderly population, attempts have been made to develop hand operated refuse pickup devices, typically referred to as “poop scoopers,” “pooper scoopers,” or the like, which employ a long enough handle to enable the user to scoop or pick up refuse while standing up.
While prior long handled refuse pickup devices have been designed for outdoor use, with an ever growing indoor pet population, a need has arisen for a long handled refuse pickup device that can not only be used outdoors but which is particularly well suited for indoor use. One such refuse pickup device capable of such dual use is the refuse or poop scooper disclosed in commonly owned U.S. Pat. No. 8,235,434, which has an elongate handle with a pair of relatively movable scoop jaws that are biased in an open position when not in use to enable the scooper to be stood uprightly on a flat surface in a convenient ready-to-use position.
While the scooper disclosed in U.S. Pat. No. 8,235,434 is an advancement over other prior art scoopers, improvements nonetheless remain desirable. What is needed is a long-handled refuse or poop scooper with scoop jaws used to scoop an object into a chamber formed by the closed jaws that is more sanitary than prior scoopers. What also is desired is a long-handled refuse or poop scooper that can be stood uprightly in a ready to use condition whether the scoop jaws are open or closed.
The present invention is directed to a device for picking up one or more objects that preferably is a refuse pickup device well suited for use as a scooper, e.g., pooper scooper, having a pair of scoop jaws pivotally movable between an open position enabling scooping up of one or more objects and a closed position where the scoop jaws form an object-holding chamber that substantially completely encloses the scooped up objects. The scooper has a frame of hollow, tubular construction that can be formed of a tube of one-piece or two-piece construction defining a frame tube that provides a guide for a scoop jaw actuator linkage arrangement that facilitates scoop jaw movement between the open and closed positions. The scoop jaws are each pivotally attached to a corresponding one of a pair of radially outwardly and downwardly extending scoop jaw pivot anchors that forms a cradle that supports the scoop jaws when the scoop jaws are closed. The scooper has a skirt that covers an opening formed between the scoop jaws through which scoop jaw links of the scoop jaw actuator linkage arrangement extends and protects the scoop jaw actuator linkage arrangement during scooper use and operation. The tubular frame of the scooper preferably is elongate having a length long enough to enable a user to operate the scooper while standing up. The scoop jaws have a generally flat bottom wall that form a base or pedestal upon which the scooper can be uprightly stood on the floor or ground when not being used.
One or more preferred exemplary embodiments of the invention are illustrated in the accompanying drawings in which like reference numerals represent like parts throughout and in which:
Before explaining one or more embodiments of the invention in detail, it is to be understood that the invention is not limited in its application to the details of construction and the arrangement of the components set forth in the following description and illustrated in the drawings. The invention is capable of other embodiments or being practiced or carried out in various ways. Also, it is to be understood that the phraseology and terminology employed herein is for the purpose of description and should not be regarded as limiting.
The scooper frame 40 is elongate and can be formed of a tube 44 having the handle 42 disposed at one end and a scoop jaw mount 46 disposed at an opposite end with the scoop jaws 34, 36 pivotally attached to the mount 46. The scoop jaw mount 46 forms part of a scoop jaw pivot joint arrangement 48 rotatively connecting or pivotally grounding the jaws 34, 36 to the frame 40 with the mount 46 having a pair of jaw pivot anchors 50, 52 that extend oppositely outwardly from the frame 40. One of the jaws 34 has a pivot joint mount 54 attached to one of the jaw pivot anchors 50 via a first pivot 56, e.g., a pivot pin, and the other one of the jaws 34 has a pivot joint mount 58 attached to the other one of the jaw pivot anchors 52 via a second pivot 60, e.g., another pivot pin respectively forming a pair of outer scoop jaw pivot joints 53, 55. Such a scoop jaw pivot joint arrangement 48 enables each one of the jaws 34, 36 to rotate about its respective pivot 56, 60 outwardly away from the other one of the jaws 36, 34 from the closed position, shown in
The scooper 32 has a scoop jaw actuator assembly 62 that includes an elongate scoop jaw actuator connector 64 that preferably is an elongate connecting link 66, such as an elongate substantially rigid connecting rod 68, which is slidably telescopically received in the scooper frame tube 44 and operatively connected to the handle 42 and scoop jaws 34, 36. As is best shown in
As is best shown in
With continued reference to
As is further depicted in
Each scoop jaw pivot anchor arm 90, 92 has a shoulder 93 facing a corresponding one of the scoop jaws 34, 36 defining a cradle 91 that not only supports each jaw 34, 36 when the jaws 34, 36 are closed but which also provides a stop or an abutment 95 against which an adjacent portion of a respective jaw 34, 36 stops during jaw closure to help keep the jaws 34, 36 closed. By each shoulder 93 of each scoop jaw pivot anchor arm 90, 92 serving as a stop or abutment 95 against which part of each jaw 34, 36 stops when closed, each scoop jaw pivot anchor arm 90, 92 supports the object-enclosing chamber 38 formed by the closed jaws 34, 36 advantageously helping to maintain the integrity of the chamber 38 when subjected to loading, stresses, strains, torsion, bending moments, and the like during scooper use and operation.
As is best shown in
To provide an object-retaining chamber 38 possessing a larger retention volume that can substantially simultaneously hold a greater number of objects scooped up by the scooper 32 during use and operation, the sidewall 94 of each scoop jaw 34, 36 extends upwardly terminating at or adjacent the end of the frame 40 forming an opening 105 in communication with an opening 107 in the end of the frame 40 through which the jaw actuator links 74, 76 extend. As is best shown in
Whether the links 74, 76 are curved or straight, end of the frame 40 has an annular inner shoulder 114 that defines a link guide or cam 116 that causes each one of the scoop jaw links 74, 76 to rotate or pivot about pivot 80 of the in-frame disposed joint 82 toward the other one of the links 76, 74 facilitating closing of the scoop jaws 34, 36 when the trigger 70 is squeezed by a user seeking to close the jaws 34, 36. As the trigger 70 is squeezed, pivotable movement of the trigger 70 relative to the rest of the handle 42 slidably telescopically displaces the elongate scoop actuator connecting link 66 upwardly within the scooper frame tube 44 thereby also pulling the pivot joint coupling 78 upwardly within the tube 44 toward the handle 42. As the pivot joint coupling 78 is pulled upwardly, an outer edge of each scoop jaw link 74, 76 rides, e.g., is slidably guided, along the link guide or cam 116 formed by the shoulder 114 of the scooper frame tube 44 urging the scoop jaw links 74, 76 toward each other. As the scoop jaw links 74, 76 are urged toward one another, e.g., pinched together, by the opposite sides or opposite edges of the frame tube shoulder 114, the angle of the acute included angle between the links 74, 76 decreases causing each link 74, 76 to pull the scoop jaw 34, 36 to which the corresponding link 74, 76 is connected toward the other scoop jaw 34, 36.
When the scoop jaws 34, 36 are closed, the scooper frame tube 44 constrains relative pivotable movement of the scoop jaw links 74, 76 away from one another helping to securely retain the jaws 74, 76 in their closed position until the trigger 70 of the handle 42 is released. When released, biasing force tending to want to open the jaws 34, 36 displaces the elongate scoop actuator link 66 downwardly toward the end of the scooper frame tube 44 urging the pivot joint coupling 78 toward the end of the tube 44. As the pivot joint coupling 78 is urged toward the end of the tube 44, both scoop jaw links 74, 76 are further extended outwardly from the tube 44 causing the pivot angle and spacing between the links 74, 76 to increase thereby causing the jaws 34, 36 to rotate about their respective pivot 56, 60 opening the jaws 34, 36.
To prevent any portion of any object scooped up into the object-retaining chamber 38 from passing through or otherwise falling downwardly from of the chamber 38 when the scoop jaws 34, 36 are closed, the bottom wall outer edges 99 and outer sidewall edges 100 adjoin and preferably abut one another as depicted in
A scooper 32 made in accordance with the present invention having scoop jaws 34, 36 that form such an object-retaining chamber 38 of substantially completely enclosed construction when the jaws 34, 36 are closed advantageously produces a more sanitary scooper 32 because it minimizes and preferably substantially completely prevents loss of matter from the chamber 38. Where the jaws 34, 36 are of imperforate construction, such imperforate jaws 34, 36 form an object-retaining chamber 38 of substantially completely sealed construction produces an even more sanitary scooper 32 by minimizing and preferably substantially completely preventing disease transfer, insect infestation, parasitic outbreaks, and the like, particularly when the jaws 34, 36 are closed during storage.
To cover the opening 105 formed at the top of the object-retaining chamber 38 where the sidewall 100 of both scoop jaws 34, 36 terminate, a skirt 106 extends outwardly from the frame 40 and overlies at least a portion of the sidewall 100 of each jaw 34, 36 located adjacent the end of the frame 40. Such a skirt 106 extends outwardly and downwardly from the frame 40 toward the jaws 34, 36 having a generally circular outer peripheral edge 108 overlying both jaws 34, 36 forming a generally bowl-shaped skirt 106 that covers or enshrouds a generally spherically shaped top portion of the object-retaining chamber 38. Such a skirt 106 preferably also helps cover and protect the scoop jaw links 74, 76, the pivot joint coupling 78, and/or each one of the scoop jaw pivot joints 53, 55, 87 and 89.
Such a downwardly facing bowl-shaped skirt 106 is formed of a generally outwardly and downwardly extending conical, frustoconical or frustum shaped skirt sidewall 110 that can and preferably does extend from one scoop jaw pivot anchor arm 90 to the other scoop jaw pivot anchor arm 92. Where the scooper 32 includes such a skirt 106 that interconnects or extends between the scoop jaw pivot anchor arms 90, 92, the skirt 106 can form part of a cradle 91 that helps support the scoop jaws 34, 36 along substantially the entire surface area of both jaws 34, 36 that is covered or enshrouded by the skirt 106 when the jaws 34, 36 are closed. Where the scooper 32 includes such a skirt 106 that interconnects or extends between the scoop jaw pivot anchor arms 90, 92, the scoop jaw pivot anchor arms 90, 92 also function as stiffeners or stiffening ribs that help strengthen and structurally rigidify the frame 40 and the skirt 106.
A scooper 32 constructed in accordance with the present invention can be resiliently urged or biased, such as by a biasing element or the like (not shown), e.g., spring, toward the closed position shown in
Although not shown in
During use and operation of the scooper 32, a user grasps the handle 42 to move the scooper 32 into a desired position relative to an object 103 on the ground, floor or another surface 101 disposed below the user that the user wishes to pick up. Where one or both scoop jaws 34, 36 have been locked, such as during storage of the scooper 32, the lock is released enabling the scooper 32 to be used. When at least one of the jaws 34, 36 have been manipulated by the user so the teeth 104 of one of the jaws 34, 36 is disposed alongside the object, the user manipulates the trigger 70 of the handle 42 in a manner that moves at least one of the jaws 34, 36 relative to the other one of the jaws 34, 36 to scoop the object up and capture the object in the chamber 38 formed when the jaws 34, 36 are closed.
Where the scooper 32 is of an “always open” configuration, releasing the lock, e.g., trigger lock 112 (
Where the scooper 32 is equipped with a lock, e.g., trigger lock 112 (
A scooper 32 constructed in accordance with the present invention is well suited for outdoor use for picking up dog poop, for grasping and picking up objects 103 on the floor or ground 101, as well as for indoor use in removing litter clumps and turds from litter boxes. Where the scooper 32 is intended for use in scooping fecal matter, turds, clumps and the like from granular litter in a litter box, the sidewall 94 and/or bottom wall 96 of one or both scoop jaws 34, 36 can be of perforate construction.
Understandably, the present invention has been described above in terms of one or more preferred embodiments and methods. It is recognized that various alternatives and modifications may be made to these embodiments and methods that are within the scope of the claimed invention. Various alternatives are contemplated as being within the scope of the claimed invention. It is also to be understood that, although the foregoing description and drawings describe and illustrate in detail one or more preferred embodiments of the present invention, to those skilled in the art to which the present invention relates, the present disclosure will suggest many modifications and constructions, as well as widely differing embodiments and applications without thereby departing from the spirit and scope of the claims set forth below.
This application claims priority under 35 U.S.C. §119(e) to U.S. Provisional Patent Application No. 61/864,519, filed Aug. 9, 2013, the entirety of which is hereby incorporated by reference herein.
Number | Date | Country | |
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61864519 | Aug 2013 | US |