Prevention of electro-chemical corrosion at charging contacts of a battery-powered handpiece and its charger device
First Claim
Patent Images
1. Battery-powered handpiece, comprising:
- (a) a housing;
(b) first and second charging contacts exposed on the housing, for connection to contacts of a battery contained within the housing; and
(c) a sensing contact positioned on the housing for detecting electrolytic current flow through a fluid film on the housing between the first charging contact and the second charging contact.
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Abstract
The present invention relates to the prevention of electro-chemical corrosion at charging pins, especially of a battery-powered handpiece and its charging station.
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Citations
20 Claims
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1. Battery-powered handpiece, comprising:
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(a) a housing; (b) first and second charging contacts exposed on the housing, for connection to contacts of a battery contained within the housing; and (c) a sensing contact positioned on the housing for detecting electrolytic current flow through a fluid film on the housing between the first charging contact and the second charging contact. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. Charger device for a battery-powered handpiece, comprising:
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(a) a housing; (b) first and second charging pins exposed on the housing and adapted to contact charging contacts on a handheld device; and (c) a sensing pin on the housing for detecting at least one of (i) electrolytic current flow through a fluid film on the housing between the first charging pin and the second charging pin; and
(ii) electrolytic current flow through a fluid film on the housing of a handheld device that is detected by a sensing contact of the handheld device. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. In combination:
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A. a battery-powered handpiece, comprising; (i) a housing; (ii) first and second charging contacts exposed on the housing, for connection to contacts of a battery contained within the housing; and (iii) a sensing contact positioned on the housing for detecting electrolytic current flow through a fluid film on the housing between the first charging contact and the second charging contact; and B. a charger device for the battery-powered handpiece, comprising; (i) a housing; (ii) first and second charging pins exposed on the housing and adapted to contact charging contacts on the handheld device; and (iii) a sensing pin on the housing for detecting at least one of (a) electrolytic current flow through a fluid film on the housing between the first charging pin and the second charging pin; and
(b) electrolytic current flow through a fluid film on the housing of a handheld device that is detected by a sensing contact of the handheld device.
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Specification