Quiet shelf for an agricultural cart

• US 6,814,362 B2
• Filed: 02/22/2002
• Issued: 11/09/2004
• Est. Priority Date: 02/22/2002
• Status: Expired due to Fees

• Current Assignee: Wellmaster Pipe and Supply, Inc.
• Original Assignee: Wellmaster Pipe and Supply, Inc.
• Inventors: Hanson, Jeffery G., Wilson, Ernest L., Platteeuw, Anthony M.
• Primary Examiner(s): Ellis, Christopher P.
• Assistant Examiner(s): Swenson, Brian L
• Application Number:
  US10/079,526
• Publication Number:
  US 20030160409A1
• Time in Patent Office: 991 Days
• Field of Search: 280/79.3, 280/79.11, 280/79.7, 280/47.34, 280/47.35, 248/205.3, 248/250, 108/57.12, 108/106, 108/107, 108/108, 108/109
• US Class Current: 280/79.3
• CPC Class Codes: B62B 2202/70 Flowers; Pots; Plants
• CPC Class Codes: B62B 2205/32 Shelves
• CPC Class Codes: B62B 3/005 Details of storage means, e.g. drawers, bins or racks
• CPC Class Codes: B62B 3/006 for stacking objects like trays, bobbins, chains

Abstract

A wheeled agricultural cart for transporting plant materials having at least one removable shelf. The shelf includes a planar shelf element for supporting the plant materials attached to a shelf frame by an adhesive material having a resiliently deformable thickness. The material maintains a vertically spaced part relationship between the shelf element and the frame, preventing them from rattling against one another.

Claims

1. An agricultural cart in combination with nursery or potted plants for transporting plant material having a rectangular-like base frame with wheels thereunder and at least one shelf, said cart comprising:

a) vertical pillar members extending upwardly from said base frame for supporting said shelf therebetween, each pillar having first attachment means;

b) said shelf having a shelf frame, said shelf frame having rectangular like shave with at least one cross member, said shelf frame having a planar surface for supporting a shelf element thereon, said shelf element attached to said planar surface by adhesive material having a resiliently deformable thickness, said shelf element vertically separated therefrom by said thickness to thereby reduce the vibration of said shelf element to reduce shelf noise when the cart is being moved; and

c) said shelf frame having second attachment means complementary to said first attachment means for removable attachment of said shelf frame to each said pillar.

2. The cart of claim 1, wherein said adhesive material comprises a foam tape and/or an adhesive paste.

3. The cart of claim 2, wherein said adhesive material is a polyurethane adhesive paste.

4. The cart of claim 3, wherein said adhesive material comprises:

urethane polymer;

poly (vinyl chloride) polymer;

xylene;

petroleum distillate; and

, p,p′

-methylenebis(phenyl isocyanate).

5. The cart of claim 2, wherein said adhesive material has a length, said length continuous along said planar surface.

6. The cart of claim 2, wherein said adhesive material has a length, a series of lengths of said adhesive material periodically placed along said planar surface.

7. The cart of claim 1, wherein said first attachment means includes a plurality of vertical slots.

8. The cart of claim 7, wherein said second attachment means includes a hook member having a downward facing notch for engagement in said slot.

9. The cart of claim 8, wherein said base frame has four corners, said vertical pillar members extending upwardly from each said corner;

and wherein said shelf frame has four corners, said hook members attached to said shelf frame at substantially each said corner.

10. The cart of claim 2, wherein said shelf element is made from a plastic material, a metallic material, or a wooden material.