US 4,685,574 · Granted 1987-08-11
The Gravity-Feed Display Shelf That Lets Stores Stack Products Infinitely
Imagine a store shelf where bottles and cans automatically roll forward as you grab one — the ones behind just slide down to take its place. This patent describes a modular shelf system that snaps together, can expand or shrink in width, and lets stores connect dozens of these gravity-feed racks side by side to create massive product walls.
The plain-English version
What it protects
The claim covers a shelf-mounted display system with side tracks that hold containers at a slight angle, allowing them to roll forward by gravity as items are removed. What's protected here is the specific design of how the side and end pieces lock together using corrugated fasteners, how the shelf can be expanded or contracted by adjusting the distance between side members, and how multiple units can be connected in parallel to create wider displays. The middle member that lets two rows dispense simultaneously is also covered.
Why it matters
This patent solves a real retail problem: how to stock and display heavy products (cans, bottles, six-packs) in a way that's compact, modular, and doesn't require constant employee restocking. By making the system expandable and stackable, stores could build custom-sized displays without buying entirely new fixtures. The patent's focus on interconnection and parallel arrangement means a retailer could theoretically create a wall of these systems without redesigning each one.
Real-world use
Every time you've grabbed a can of soda from a sloped shelf at a grocery store and watched another can roll down to replace it, you were using technology based on this gravity-feed principle.
Original USPTO abstract
A shelf-supported expandable gravity feed system is shown herein for displaying and dispensing cans, bottles, aseptic packages, and packages of cans or bottles. The apparatus includes two side members, having a ribbed support track, a wall, and two end members. A plurality of side members may be connected by a plurality of end members to form the expandable gravity feed system. To facilitate this interconnection the fasteners and end members include corresponding corrugated portions. The corrugated portions also permit varying the distance between interconnecting side members thereby expanding or contracting the width of the feed system. To provide a stable integral assembly the fasteners include a locking flange which is received within a recessed portion in the end member. Alternatively, the end members may include a locking flange which is received within a slot in the fastener. The shelf-supported expandable gravity feed system also includes a middle member which cooperates with the side members so that two separate rows of containers can be dispensed simultaneously. The middle members may also contain channels which receive vertical separators to allow stacking the gravity feed systems. An angular base member may be used to support the lowermost side members of the feed system, enabling the feed system to be inclined so containers may slide forward. The side member may include a pair of ribbed support tracks on either side of the middle member, permitting an infinite number of feed systems to be connected in parallel relationship to one another by alternately connecting a fastener to each end member on each side of the middle member.
Patent details
- Publication number
- US 4,685,574
- Filing date
- 1985-10-16
- Grant date
- 1987-08-11
- Assignee
- Visual Marketing Inc.
- Inventor(s)
- YOUNG; RAYMOND R., DEFFNER; JOHN F., BARNES; RUSSELL M.
- CPC class
- A47F1/12
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