US5092790A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Connector for an electric range
Assignee: Leviton Manufacturing Co Inc
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Filing: 1991-06-20
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Granted: 1992-03-03
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Expires: 2011-06-20
Abstract
Abstract The invention features an insulative contact locking device for an electric range. When the heating coils of the range are caused to experience many heat cycles, the constant expansion end contraction of the heating terminals often causes a loosening of the power contacts. The invention comprises a pair of spring-biased contacts that positively hold the terminal ends in secure mechanical and electrical contact with the power wires.
Inventors
- 👤 Joseph G. Justiano
- 👤 Wolfgang F. Bienwald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 07:19
CPC Classifications
H; H05; H05B; H05B3/00; H05B3/68; H05B3/76
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
346 words
A device for insulating and connecting a pair of power wires and the terminal ends of an electric range heating element, said device comprising: a pair of spring-like contacts, each connected to one of said pair of power wires and each having means defining a butterfly section for receiving an inserted one of said terminal ends of said heating element, said butterfly sections terminating on one end thereof in a pair of flared lips and having on an opposite end thereof a pair of outwardly projecting tines; an insulative body having a front end and a rear end, and means defining two channels therethrough, extending substantially parallel to each other, each channel for receiving at a rear end thereof one of said spring-like contacts, and at a front end thereof one of said terminal ends of said heating elements, each channel having an internal portion for receiving one of said spring-like contacts in locking engagement, each internal portion having a first forward abutment, located at said channel's front end for limiting forward movement of said spring-like contact by engaging with each of said flared lips, and having rearward abutments for limiting rearward movement of said spring-like contact by engaging with each of said projecting tines, whereby said respective butterfly sections will be caused to spread upon insertion of said terminal ends, and clamp upon them; a spring-like stand attached to the front end of said insulative body for holding said insulative body separated from a platform of the electric range; said stand having a pair of prong extensions for engaging said terminal ends of said heating elements; said prong extensions each having an inwardly disposed tab making biased contact with a respective terminal end of said heating element; a mounting bracket attached to said heating element terminal ends for holding them in spaced-apart relationship; and said mounting bracket having a pair of flanges that each engage with a respective tab of said stand when said terminal ends are inserted into said channels, such that removal of said terminal ends from said body is obstructed after insertion.
Claim 2
Independent Claim
346 words
A device for insulating and connecting a pair of power wires and the terminal ends of an electric range heating element, said device comprising: a pair of spring-like contacts, each connected to one of said pair of power wires and each having means defining a butterfly section for receiving an inserted one of said terminal ends of said heating element, said butterfly sections terminating on one end thereof in a pair of flared lips and having on an opposite end thereof a pair of outwardly projecting tines; an insulative body having a front end and a rear end, and means defining two channels therethrough, extending substantially parallel to each other, each channel for receiving at a rear end thereof one of said spring-like contacts, and at a front end thereof one of said terminal ends of said heating elements, each channel having an internal portion for receiving one of said spring-like contacts in locking engagement, each internal portion having a first forward abutment, located at said channel's front end for limiting forward movement of said spring-like contact by engaging with each of said flared lips, and having rearward abutments for limiting rearward movement of said spring-like contact by engaging with each of said projecting tines, whereby said respective butterfly sections will be caused to spread upon insertion of said terminal ends, and clamp upon them; a spring-like stand attached to the front end of said insulative body for holding said insulative body separated from a platform of the electric range; said stand having a pair of prong extensions for engaging said terminal ends of said heating elements; said prong extensions each having an inwardly disposed tab making biased contact with a respective terminal end of said heating element; a mounting bracket attached to said heating element terminal ends for holding them in spaced-apart relationship; and said mounting bracket having a pair of flanges that each engage with a respective tab of said stand when said terminal ends are inserted into said channels, such that removal of said terminal ends from said body is obstructed after insertion.
Claim 3
Dependent Claim
31 words
The device of claim 1, wherein said channels have at said end for receiving the terminal ends of the heating elements, chamfered surfaces for directing said terminal ends into said channels.
Claim 4
Dependent Claim
26 words
The device of claim 1, wherein said channels each comprise means defining a pair of grooves disposed along sides of said channels for receiving said tines.
Claim 5
Dependent Claim
19 words
The device of claim 1, wherein said stand has means for affixing said stand to said electric range platform.
Claim 6
Dependent Claim
39 words
The device of claim 1, wherein said stand has a pair of apertures, and said insulative body has a pair of outer abutments that fit within said apertures of said stand for affixing said stand to said insulative body.
Claim 7
Dependent Claim
19 words
The device of claim 1, wherein each of said spring-like contacts have means for crimping a power wire thereto.
Claim 8
Dependent Claim
47 words
The device of claim 1, wherein said flared lips of each of said butterfly sections are normally in non-biased contact with the respective forward abutments, and are biased against said forward abutments by insertion of the terminal ends of the heating element into the respective butterfly sections.
Claim 9
Dependent Claim
22 words
The device of claim 1, wherein said terminal ends of said heating element are held in spaced-apart relationship by a mounting bracket.
Claim 10
Dependent Claim
30 words
The device of claim 8, wherein the channels of said insulative body terminate in an opening for receiving said mounting bracket, and wherein said bracket acts to close said opening.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-03-03 | 1995-09-02 | 1996-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-03-03 | 1999-09-02 | 2000-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-03-03 | 2003-09-02 | 2004-03-03 | $7700.00 | Window Closed / Lapsed |