Dan R Test

US Patent:

45581932, Dec 10, 1985

Filed:

Jul 27, 1984

Appl. No.:

6/634192

Inventors:

Dan Test - Winchester MA

Assignee:

C & K Components, Inc. - Newton MA

International Classification:

H01H 928

US Classification:

200 4305

Abstract:

This invention is directed at a switch lock comprising a top plate positioned between the lock portion and the switch portion. The top plate includes a recess which provides stop means for the switch lock.

US Patent:

47712732, Sep 13, 1988

Filed:

Oct 18, 1985

Appl. No.:

6/789188

Inventors:

Dan Test - Winchester MA
Richard C. Dahlquist - Norwell MA

Assignee:

C&K Components, Inc. - Newton MA

International Classification:

G08B 2300

US Classification:

340693

Abstract:

An anti-tamper bracket for use with a surveillance device, the bracket includes a bracket portion, a bracket cover, a trunnion, an adapter plug, a fastening means and a retaining plate, the bracket portion having a first through aperture formed therein, the first aperture having a shoulder, the shoulder having an upper surface and a lower surface, the trunnion having a pair of trunnion elements extending therefrom and having means of engaging the fastening means, the adapter plug including a first side, a second side, a pair of spaced through slots and a second through aperture positioned between the through slots, and the trunnion elements passed through the slots of the adapter plug, the second side of the adapter plug bearing against the upper surface of the shoulder of the first aperture, the retaining plate having prime side, a pair of through first slots and a center slot, the prime side having frictional means associated therewith, the trunnion elements passed through the first slots, the fastening means passed through the center slot and engaged with a fastening device, whereby tightening of the fastening device on the fastening means holds the trunnion in engagement with the adapter plug and the retaining plate, the adapter plug in engagement with the shoulder of the first aperture, and the prime side of the retaining plate in bearing relation to the lower surface of the shoulder of the first aperture and the trunnion having means of engaging a surveillance device.

US Patent:

54731283, Dec 5, 1995

Filed:

Jun 16, 1994

Appl. No.:

8/260562

Inventors:

Hannu H. Pulli - Westborough MA
Dan R. Test - Winchester MA

Assignee:

C&K Components, Inc. - Watertown MA

International Classification:

H01H 900

US Classification:

200292

Abstract:

A ceiling mounted wireless wall switch which has three main parts a base, a cover and a printed circuit assembly. The printed circuit assembly is mounted on the base and the base is mechanically engaged to the cover. The base portion of the base has a peripheral edge which has a series of upwardly extending spring fingers spaced around the peripheral edge and the spring fingers are spaced from each other and adapted to engage the cover. The cover has a base section, a, first wall and a second wall circumscribed by the first wall. The first wall has an inner surface with a series of pairs of spaced ribs positioned on the inner surface of the first wall, each of the pairs of spaced ribs defining a slide area, each of the slide areas having an impression formed there on and each of the slide areas has a top which is spaced from the base section. The top is open and each of the spring fingers engages one of the impressions.