The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 17, 1998
Filed:
Dec. 20, 1996
Larry P Bennett, Franklin, MI (US);
Maria T Warzecha, Shelby Township, MI (US);
Harold L Bowman, Lapeer, MI (US);
Eaton Corporation, Cleveland, OH (US);
Abstract
A cartridge type pressure switch is formed with a cup-shaped contact flanged outwardly at its rim and slidably nested in an annular spacer. A flexible diaphragm has an integrally formed annular bead ring which is stretched over the spacer to secure the diaphragm in place over the cup-shaped contact. A spring nested in the cup-shaped contact has the outer end registered against a deck or spring retainer. A pair of stationary contacts on opposite sides of the spacer have terminal portions extending outwardly through the deck. The spring biases the cup-shaped contact in a direction to seat the flange against the stationary contacts. When the cartridge is inserted in a bore, the bead ring is compressed to seal the cartridge in the bore. When a plurality of cartridges are received in bores in a block or manifold, a spacer and lead frame are commonly received over the terminal portions of the contacts on each cartridge for providing electrical connection; and, a cover is received over the lead frame and attached to the block. Alternatively a single cartridge is inserted in a bore and retained by a plate, with terminal pins connected to cut outs in the terminal portions of the contacts.