Utility cart with rotatably sectioned center shelves
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A47B-057/00
B62B-003/02
출원번호
US-0547952
(2014-11-19)
등록번호
US-9216753
(2015-12-22)
발명자
/ 주소
Bryan, Patrick J.
Bryan, Dawn R.
Colbert, Clark L.
Colbert, April D.
출원인 / 주소
Bryan, Patrick J.
대리인 / 주소
McHale & Slavin, P.A.
인용정보
피인용 횟수 :
2인용 특허 :
6
초록▼
A utility cart having individually rotatable shelves on each corner post, whereby each shelf is constructed and arranged to adjoin together to form a center interior shelf in horizontal disposition between pairs of corner posts, is disclosed herein. The utility cart includes a top shelf and a bottom
A utility cart having individually rotatable shelves on each corner post, whereby each shelf is constructed and arranged to adjoin together to form a center interior shelf in horizontal disposition between pairs of corner posts, is disclosed herein. The utility cart includes a top shelf and a bottom shelf supported in a separated state by four corner posts. A center shelf is provided in the form of four individual shelves each rotatably secured to one of the corner posts to be rotatable thereabout. The center shelves may be rotated to fit within the confines of the cart to function as a single shelf similar to the upper and lower shelves, or they may be positioned in pairs adjacent each other and extending beyond the end(s) of the cart or individually anywhere in between.
대표청구항▼
1. A utility cart comprising: a top shelf, said top shelf including a top surface and a bottom surface, said bottom surface having at least four open slots each positioned on a corner portion of said bottom surface, each said open slot constructed and arranged to accept a top portion of a corner pos
1. A utility cart comprising: a top shelf, said top shelf including a top surface and a bottom surface, said bottom surface having at least four open slots each positioned on a corner portion of said bottom surface, each said open slot constructed and arranged to accept a top portion of a corner post;at least four of said corner posts constructed as elongated cylindrical members;a bottom shelf, said bottom shelf including a top surface and a bottom surface, said top surface having at least four open slots each positioned on a corner portion of said top surface, each said open slot constructed and arranged to accept a bottom portion of one said corner post;at least two center shelves, each having a rectangular shape positioned between said top shelf and said bottom shelf along one of said at least four said corner posts, said at least two center shelves including an aperture positioned in a corner portion of said rectangular shape, said aperture sized to receive one of said at least four corner post members therethrough, said aperture sized to cooperate with said corner post to allow selective rotation and infinite positioning of said center shelves around said center posts, said rectangular shape sized so that said at least two center shelves can be positioned with edges of said rectangular shape adjacent with respect to each other to create a single shelf within the confines of said four corner posts and wherein said at least two center shelves can be positioned with edges of said rectangular shape spaced apart with respect to each other to create two shelves outside of the confines of said four corner posts. 2. The utility cart of claim 1 wherein said at least two center shelves are rectangular in shape, said rectangular shape sized so that said at least two center shelves can be positioned with edges of said rectangular shape adjacent with respect to each other to create a single shelf outside the confines of said four corner posts and wherein said at least two center shelves can be positioned with edges of said rectangular shape spaced apart with respect to each other to create two shelves inside of the confines of said four corner posts. 3. The utility cart of claim 1 wherein said utility cart includes four said center shelves, two of said center shelves positioned at a first end of said utility cart and two of said center shelves positioned at a second end of said utility cart, each said center shelf constructed and arranged to rotate about a separate corner post. 4. The utility cart of claim 3 wherein said four center shelves are rectangular in shape, said aperture positioned in a corner portion of said rectangular shape, said rectangular shape sized so that said two center shelves at said first end of said utility cart can be positioned with edges of said rectangular shape adjacent with respect to each other at to create a single shelf within the confines of said four corner posts and wherein said two center shelves at said first end of said utility cart can be positioned with edges of two said rectangular shaped shelves in a spaced apart relationship with respect to each other to create two shelves outside of the confines of said four corner posts and wherein edges of said two said rectangular shaped shelves at said second end of said utility cart can be positioned adjacent with respect to each other to create a single shelf inside of the confines of said four corner posts and wherein said two center shelves at said second end of said utility cart can be positioned with edges of two said rectangular shaped shelves in a spaced apart relationship with respect to each other to create two shelves outside of the confines of said four corner posts. 5. The utility cart of claim 3 wherein said four center shelves are rectangular in shape, said aperture positioned in a corner portion of said rectangular shape, said rectangular shape sized so that said two center shelves at said first end of said utility cart can be positioned with edges of said rectangular shape adjacent with respect to each other to create a single shelf within the confines of said four corner posts and wherein said two center shelves at said first end of said utility cart can be positioned with edges of two said rectangular shaped shelves in a spaced apart relationship with respect to each other to create a pair of shelves outside of the confines of said four corner posts and wherein edges of said two said rectangular shaped shelves at said second end of said utility cart can be positioned in a spaced apart relationship with respect to each other to create a pair of shelves outside of the confines of said four corner posts and wherein said two center shelves at said second end of said utility cart can be positioned with edges of two said rectangular shaped shelves in an adjacent relationship with respect to each other to create a single shelf outside of the confines of said four corner posts. 6. The utility cart of claim 1 including at least one collar member, each said collar member including an inner bore sized to fit around an outer diameter of said corner posts, one said collar positioned around said corner post to support said at least one center shelf. 7. The utility cart of claim 6 wherein said at least one collar member can be secured anywhere along the length of said corner post. 8. The utility cart of claim 6 wherein said bottom shelf includes four wheels secured thereto for rotation about an axle member. 9. The utility cart of claim 8 wherein said bottom surface of said bottom shelf includes a pair of depending tab members positioned proximate a second end of said utility cart, said depending tab members each including an aperture therethrough, said apertures sized to cooperate with an axle member, two of said wheels secured to said axle member for rotation, said bottom surface of said bottom shelf including a pair of caster wheels secured to a first end of said utility cart. 10. The utility cart of claim 8 wherein said top shelf includes a handle member, said handle member secured to a first end of said top shelf. 11. The utility cart of claim 10 wherein said top surface of said top shelf includes at least one arch shaped support member, said support member extending from a first side of said top shelf to a second side of said support shelf. 12. The utility cart of claim 11 wherein said top surface of said top shelf includes a plurality of said arch shaped support members. 13. The utility cart of claim 12 wherein said plurality of support members are constructed and arranged to support a plastic sheet member whereby said top shelf functions as a greenhouse. 14. The utility cart of claim 1 wherein said top shelf is constructed of two pieces. 15. The utility cart of claim 14 including a first elongated rigid member extending from a first top shelf half sidewall portion to a second top shelf half sidewall portion along a first side of said utility cart, a second elongated rigid member extending from said first top shelf half sidewall portion to said second top shelf half sidewall portion along a second side of said utility cart. 16. The utility cart of claim 1 wherein said bottom shelf is constructed of two pieces. 17. The utility cart of claim 16 including a third elongated rigid member extending from a first bottom shelf half sidewall portion to a second bottom shelf half sidewall portion along a first side of said utility cart, a fourth elongated rigid member extending from said first bottom shelf half sidewall portion to said second bottom shelf half sidewall portion along said second side of said utility cart.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (6)
Shindelar, John Oliver; Zinke, Stuart, Collapsible cart.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.