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A shelf assembly includes a pair of shelf adapter brackets each defined by first and second shelf bracket members, one of which includes vertically disposed opposing slideways into which open a plurality of vertically spaced slots and the other of which includes a plurality of supporting projections

A shelf assembly includes a pair of shelf adapter brackets each defined by first and second shelf bracket members, one of which includes vertically disposed opposing slideways into which open a plurality of vertically spaced slots and the other of which includes a plurality of supporting projections which move in the slideways and seat in the slots to effect selectively vertical adjustment of an associated shelf. The shelf may include shelf brackets having hooks for engaging in slots of one of the bracket members or can be integrally formed to define one of the first and second bracket members. Another embodiment includes a shelf having an injection molded rim with hooks at rear corners thereof for engaging one of the shelf support members. Each shelf assembly prevents inadvertent/accidental disengagement of an associated shelf from the adapter brackets.

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1. A vertically adjustable shelf comprising at least first and second members disposed in substantially vertically sliding relationship to each other, said first member having a pair of substantially vertically disposed slideways defining a first distance therebetween, said first member further incl

1. A vertically adjustable shelf comprising at least first and second members disposed in substantially vertically sliding relationship to each other, said first member having a pair of substantially vertically disposed slideways defining a first distance therebetween, said first member further including a plurality of substantially vertically spaced supports opening into each of said slideways, a second effective length between the spaced supports of opposite slideways defining a second effective distance different than said first distance, said second member having at least a pair of supports, a third effective distance between said second member pair of supports which is between said first and second distances wherein (a) said first and second members are relatively vertically slidable when said second member pair of supports are disposed within said slideways and (b) said first and second members are relatively vertically nonslidable when said second member pair of supports are disposed upon said first member supports, and a shelf carried by one of said first and second members.2. The vertically adjustable shelf as defined in claim 1 wherein said second member pair of supports project toward each other.3. The vertically adjustable shelf as defined in claim 1 wherein said second member pair of supports project away from each other.4. The vertically adjustable shelf as defined in claim 1 wherein said first member includes a pair of side walls each of which includes one of said pair of slideways.5. The vertically adjustable shelf as defined in claim 1 wherein said first member is substantially channel-shaped in transverse cross section, said channel-shaped member includes a pair of side walls, and each side wall includes one of said pair of slideways.6. The vertically adjustable shelf as defined in claim 1 wherein said shelf includes a glass panel at least partially bordered by a frame of plastic material.7. The vertically adjustable shelf as defined in claim 1 wherein said shelf includes a glass panel integrally united to one of said first and second members by an injection molded encapsulation of plastic material.8. The vertically adjustable shelf as defined in claim 1 wherein said shelf includes a glass panel integrally united to one of said first and second members by an injection molded encapsulation of plastic material, and said one member is formed by the plastic material of the encapsulation.9. The vertically adjustable shelf as defined in claim 1 wherein said shelf includes a shelf bracket carrying a shelf panel, and means for connecting said shelf bracket to one of said first and second members.10. The vertically adjustable shelf as defined in claim 1 wherein said shelf includes a shelf bracket carrying a shelf panel, and one of slot and hook means for connecting said shelf bracket to one of said first and second members.11. The vertically adjustable shelf as defined in claim 1 wherein said shelf includes a shelf bracket carrying a shelf panel, and injection molded means for connecting said shelf bracket to one of said first and second members.12. The vertically adjustable shelf as defined in claim 1 wherein said shelf includes a shelf bracket carrying a shelf panel, and said shelf bracket is an integral portion of one of said first and second members.13. The vertically adjustable shelf as defined in claim 1 wherein said shelf includes a shelf bracket carrying a shelf panel, and said shelf bracket is an integral metal portion of one of said first and second members.14. The vertically adjustable shelf as defined in claim 1 wherein said shelf includes a shelf bracket carrying a shelf panel, and said shelf bracket is an integral plastic portion of one of said first and second members.15. The vertically adjustable shelf as defined in claim 1 wherein said shelf includes a shelf bracket carrying a shelf panel, and said shelf bracket and one of said first and second members is a single molded member of plastic material.16. The vertically adjustable shelf as defined in claim 1 wherein said shelf includes a shelf bracket carrying a shelf panel, and said shelf bracket and one of said first and second members is a single injection molded member of plastic material.17. The vertically adjustable shelf as defined in claim 1 wherein said shelf includes a shelf bracket carrying a shelf panel, and said shelf bracket and one of said first and second members is a single injection molded member of plastic material in at least partial encapsulating relationship to a peripheral edge of said shelf panel.18. The vertically adjustable shelf as defined in claim 1 wherein said shelf includes a shelf bracket carrying a glass shelf panel, and said shelf bracket and one of said first and second members is a single injection molded member of plastic material in at least partial encapsulating relationship to a peripheral edge of said glass shelf panel.19. The vertically adjustable shelf as defined in claim 1 wherein said first member is substantially channel-shaped in transverse cross section, and said channel-shaped member includes a pair of side walls, each side wall includes a slideway, and said second member pair of supports are movable between an associated first member pair of slideways and pair of supports.20. The vertically adjustable shelf as defined in claim 1 wherein said first member is a generally U-shaped channel defined by a pair of side walls and a bight wall therebetween, each side wall includes one of said pair of slideways, said slideways open toward each other, said second member pair of supports project in opposite directions, and each second member support projects toward and is slidable in an associated one of said slideways.21. The vertically adjustable shelf as defined in claim 1 wherein said first member is a generally U-shaped channel defined by a pair of side walls and a bight wall therebetween, each side wall includes one of said pair of slideways, said slideways open away from each other, said second member pair of supports project in opposite directions, and each second member support projects toward and is slidable in an associated one of said slideways.22. The vertically adjustable shelf as defined in claim 20 wherein said shelf is carried by said second member.23. The vertically adjustable shelf as defined in claim 20 wherein said shelf is removably connected to said second member.24. The vertically adjustable shelf as defined in claim 20 wherein said shelf is removably connected to said second member through a hook and slot connection.25. The vertically adjustable shelf as defined in claim 20 wherein said shelf includes a substantially planar panel, and polymeric means for uniting said planar panel to said second member.26. The vertically adjustable shelf as defined in claim 20 wherein said second member is part of a shelf bracket of said shelf.27. The vertically adjustable shelf as defined in claim 1 wherein said second member is made of metallic material in part defining a shelf bracket of said shelf, a substantially planar shelf member, and means for uniting said shelf bracket and said substantially planar shelf member.28. The vertically adjustable shelf as defined in claim 1 wherein said second member is made of metallic material in part defining a shelf bracket of said shelf, a substantially planar shelf member, and polymeric means for uniting said shelf bracket and said substantially planar shelf member.29. The vertically adjustable shelf as defined in claim 1 wherein said second member is made of a relatively thin piece of metallic material, said thin piece of metallic material including a pair of relatively spaced legs merging with a shelf bracket of said shelf, and said pair of legs include one each of said second member supports.30. The vertically adjustable shelf as defined in claim 1 wherein said second member is made of a relatively thin piece of metallic material, said thin piece of metallic material including a pair of relatively spaced legs merging with a shelf bracket of said shelf, said pair of legs include one each of said second member supports, a substantially planar shelf member, and polymeric means for uniting said planar panel to said second member.31. A vertically adjustable shelf comprising a pair of first and second members disposed in substantially vertical sliding relationship to each other, said first members being disposed in substantially horizontally spaced vertical relationship and each having a pair of substantially vertically disposed slideways defining a first distance therebetween, each said first member further including a plurality of substantially vertically spaced supports opening into associated slideways, a second effective length between the spaced supports of opposite slideways defining a second effective distance different than said first distance, each second member having at least a pair of supports, a third effective distance between each said second member pair of supports which is between said first and second distances wherein (a) said first and second members of each pair are relatively vertically slidable when each said second member pair of supports are disposed within said slideways and (b) said first and second members of each pair are relatively vertically nonslidable when each said second member pair of supports are disposed upon associated first member supports, and a shelf carried in spanning relationship between one of said first and second members of said pair of first and second members.32. The vertically adjustable shelf as defined in claim 31 wherein each of second member pair of supports project toward each other.33. The vertically adjustable shelf as defined in claim 31 wherein each said second member pair of supports project away from each other.34. The vertically adjustable shelf as defined in claim 31 wherein each of said first members includes a pair of side walls each of which includes one of said pair of slideways.35. The vertically adjustable shelf as defined in claim 31 wherein each of said first members is substantially channel-shaped in transverse cross section, each of said channel-shaped members includes a pair of side walls, and each side wall includes one of said pair of slideways.36. The vertically adjustable shelf as defined in claim 31 wherein said shelf includes a glass panel at least partially bordered by a frame of plastic material.37. The vertically adjustable shelf as defined in claim 31 wherein said shelf includes a glass panel integrally united to one of said first and second members of said pair of first and second members by an injection molded encapsulation of plastic material.38. The vertically adjustable shelf as defined in claim 31 wherein said shelf includes a glass panel integrally united to one of said first and second members of said pair of first and second members by an injection molded encapsulation of plastic material, and each of said one member is formed by the plastic material of the encapsulation.39. The vertically adjustable shelf as defined in claim 31 wherein said shelf includes a shelf bracket carrying a shelf panel, and means for connecting said shelf bracket to one of said first and second members of each of said pair of first and second members.40. The vertically adjustable shelf as defined in claim 31 wherein said shelf includes a shelf bracket carrying a shelf panel, and one of slot and hook means for connecting said shelf bracket to one of said first and second members of each of said pair of first and second members.41. The vertically adjustable shelf as defined in claim 31 wherein said shelf includes a shelf bracket carrying a shelf panel, and injection molded means for connecting said shelf bracket to one of said first and second members of each of said pair of first and second members.42. The vertically adjustable shelf as defined in claim 31 wherein said shelf includes a bracket carrying a shelf panel, and said shelf bracket is an integral portion of one of said first and second members.43. The vertically adjustable shelf as defined in claim 31 wherein said shelf includes a bracket carrying a shelf panel, and said shelf bracket is an integral metal portion of one of said first and second members.44. The vertically adjustable shelf as defined in claim 31 wherein said shelf includes a bracket carrying a shelf panel, and said shelf bracket is an integral plastic portion of one of said first and second members.45. The vertically adjustable shelf as defined in claim 31 wherein said shelf includes a shelf bracket carrying a shelf panel, and said shelf bracket and one of each of said first and second members of said pair of first and second members is a single molded member of plastic material.46. The vertically adjustable shelf as defined in claim 31 wherein said shelf includes a shelf bracket carrying a shelf panel, and said shelf bracket and one of each of said first and second members of said pair of first and second members is a single injection molded member of plastic material.47. The vertically adjustable shelf as defined in claim 31 wherein said shelf includes a shelf bracket carrying a shelf panel, and injection molded means for connecting said shelf bracket to one of said first and second members of each of said pair of first and second members in at least partial encapsulating relationship to a peripheral edge of said shelf panel.48. The vertically adjustable shelf as defined in claim 31 wherein said shelf includes a shelf bracket carrying a glass shelf panel, and injection molded means for connecting said shelf bracket to one of said first and second members of each of said pair of first and second members in at least partial encapsulating relationship to a peripheral edge of said glass shelf panel.49. The vertically adjustable shelf as defined in claim 31 wherein said first member of each of said pair of first and second members is substantially channel-shaped in transverse cross-section, each of said channel-shaped members includes a pair of side walls, each side wall includes a slideway, and each of said second member pair of supports are movable between an associated first member pair of slideways and pair of supports.50. The vertically adjustable shelf as defined in claim 31 wherein each of said first members is a generally U-shaped channel defined by a pair of side walls and a bight wall therebetween, each side wall includes one of said pair of slideways, said slideways open toward each other, each of said second member pair of supports project in opposite directions, and each second member support projects toward and is slidable in an associated one of said slideways.51. The vertically adjustable shelf as defined in claim 31 wherein each of said first members is a generally U-shaped channel defined by a pair of side walls and a bight wall therebetween, each side wall includes one of said pair of slideways, said slideways open away from each other, each of said second member pair of supports project in opposite directions, and each second member support projects toward and is slidable in an associated one of said slideways.52. The vertically adjustable shelf as defined in claim 50 wherein said shelf is carried by said second members.53. The vertically adjustable shelf as defined in claim 50 wherein said shelf is removably connected to each of said second members.54. The vertically adjustable shelf as defined in claim 50 wherein said shelf is removably connected to each of said second members through a hook and slot connection.55. The vertically adjustable shelf as defined in claim 50 wherein said shelf includes a substantially planar panel, and polymeric means for uniting said planar panel to said second members.56. The vertically adjustable shelf as defined in claim 50 wherein each of said second members is part of a shelf bracket of said shelf.57. The vertically adjustable shelf as defined in claim 31 wherein each of said second members is made of metallic material in part defining a shelf bracket of said shelf, a substantially planar shelf member, and means for uniting each of said shelf brackets and said substantially planar shelf member.58. The vertically adjustable shelf as defined in claim 31 wherein each of said second members is made of metallic material in part defining a shelf bracket of said shelf, a substantially planar shelf member, and polymeric means for uniting each of said shelf brackets and said substantially planar shelf member.59. The vertically adjustable shelf as defined in claim 31 wherein each of said second members is made of a relatively thin piece of metallic material, each of said thin pieces of metallic material including a pair of relatively spaced legs merging with a shelf bracket of said shelf, and each of said pair of legs include one each of said second member supports.60. The vertically adjustable shelf as defined in claim 31 wherein each of said second members is made of a relatively thin piece of metallic material, each of said thin pieces of metallic material including a pair of relatively spaced legs merging with a shelf bracket of said shelf, each of said pair of legs include one each of said second member supports, a substantially planar shelf member, and polymeric means for uniting each of said shelf brackets and said substantially planar shelf member.