Bizarre Patents
Pet Toilet-Like Water Disk and Food Storage
One pet-friendly inventor patented "a device for watering pets, e.g., a dog or cat." The device, he helpfully noted, "has the general shape of a toilet."
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| Number | Title | Issue Date |
| 7351235 | Snivel removing device A snivel removing device includes a housing having a partition to form two chambers and an outlet port and an inlet port communicating with the chambers. One or more bladders are attached to the housing, and communicating with the chambers, and compressible and expa... | 04/01/2008 |
| 7014408 | Method and apparatus for fastening steel framing with self-locking nails A harpoon nail having two or more sets of teeth on opposite sides of fingers that deform while penetrating the framing members. The teeth engage with a bottom surface to fasten the framing members together. A piercing nail having sets of teeth on two edges penetrate... | 03/21/2006 |
| 4460301 | Rivet nail A rivet nail for forming a nailed joint to join parts together. The nail has a shank with a longitudinally-extending opening formed therein in the shape of a rhomb defined by two congruent triangles with an imaginary common base line. The widest portion o... | 07/17/1984 |
| 4457651 | Nail A pair of nail shank pieces are united face to face through the intermediary of a strip metal, and the tip parts of both nail shank pieces are tapered so that both nail shank pieces may be gradually opened as the nail is driven in. The metal strip is subj... | 07/03/1984 |
| 4312611 | Fastening element assembly with a spreading wedge A fastening element assembly consists of an anchoring bolt and a spreading wedge. After the assembly is inserted into a prepared borehole, by driving the spreading wedge inwardly relative to the anchoring bolt, the bolt is secured in the borehole. To ensu... | 01/26/1982 |
| 4037512 | Wire nail An expanding wire nail for fastening baseboards and the like to concrete walls has two aligned shank segments integrally joined by a ligament of cruciform cross-section forming a weakened zone between oblique wedge faces on the adjacent ends of the shank ... | 07/26/1977 |
