| Number | Name | Date | Kind |
|---|---|---|---|
| D293878 | Kayser | Jan 1988 | |
| D319776 | Barrett et al. | Sep 1991 | |
| D349035 | Baber | Jul 1994 | |
| D351780 | Baber | Oct 1994 | |
| 1580611 | Kirkpatrick | Apr 1926 | |
| 3710052 | Jette, Jr. | Jan 1973 | |
| 3803575 | Gotanda | Apr 1974 | |
| 3851325 | Maged | Nov 1974 | |
| 3967080 | Errani | Jun 1976 | |
| 4317969 | Riegler et al. | Mar 1982 | |
| 4336518 | Holce et al. | Jun 1982 | |
| 4465997 | Hines | Aug 1984 | |
| 4587517 | Engstrom et al. | May 1986 | |
| 4609910 | Geringer et al. | Sep 1986 | |
| 4639022 | Dunphy | Jan 1987 | |
| 4903010 | Greene | Feb 1990 | |
| 5155460 | Huckins et al. | Oct 1992 |
| Entry |
|---|
| Fig. 1 diagram of a conventional plunger lock to secure a movable barrier without a reed switch. |
| Fig. 2 diagram of a cross-section of a conventional plunger lock without a reed switch. |