...that to encourage use of his new invention, the shopping cart, market owner Sylvan Goldman hired fake shoppers to push the carts around his store in Oklahoma City? Seems his customers were reluctant to give up their hand-carried baskets.
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| Number | Title | Issue Date |
| 4793387 | Overfill spillage protection device An overfill and spillage protection device for capturing fuel spilled from a tank touch supply hose or the fill pipe of an underground fuel storage tank takes the form of a tubular reservoir having an axially flexible bellows shaped side wall. Forces indu... | 12/27/1988 |
| 4646773 | Breakaway hose coupling A breakaway hose coupling includes axially separable housing sections maintained in coupled relationship with each other by a frangible coupling pin or set screw. Each housing section includes a valve controlled flow passage in which a spring biassed valv... | 03/03/1987 |
| 4637522 | Locking lid for overfill-spillage protection system A locking lid assembly for sealably closing the upper end of a cylindrical stack of a fuel spillage capture recovery device includes a lid hingedly mounted on an annular base member constructed to be sealingly seated upon the top of the stack. Diametrical... | 01/20/1987 |
| 4098488 | Nozzle latch mechanism An automatic dispensing nozzle of the type for dispensing liquid such as gasoline, or the like, into a container and for automatically shutting off when the container is full. The assembly includes a housing having a fluid inlet and an outlet with the flu... | 07/04/1978 |
| 4015647 | Automatic nozzle assembly An automatic nozzle assembly for the dispensing of gasoline and similar liquids and of simple, efficient and low cost construction. A stem extends into a housing and is actuated by a handle. The stem extends through a check valve which closes a downstream... | 04/05/1977 |
| 3987812 | Adapter valve An adaptor assembly including an adapter body having a fluid passage extending therethrough with a poppet valve movable between open and closed positions. The poppet valve is supported on a valve stem having a gear rack thereon. A shaft extends into the a... | 10/26/1976 |