Patent US3749820A successfully refreshed from Google Patents.
US3749820A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric fence insulator
Assignee: Individual
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Filing: 1972-07-14
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Granted: 1973-07-31
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Expires: 1992-07-14
Abstract
Abstract Our all plastic insulator includes a body having two upwardly facing and forwardly projecting hook-shaped members with a sufficiently resilient central tongue therebetween so that the tongue can be flexed upwardly to permit insertion of the electric fence wire into the two hooks, the tongue thereafter preventing undesired removal of the wire. A threaded barrel extends rearwardly from the body and by reason of an elongated slot tapered at its forward end various diameters of fence posts can be accommodated, a nut on the threaded barrel providing the clamping action. The body is structured so as to shed water effectively and also to provide a relatively long non-conductive path between the charged fence wire and grounded post.
Inventors
- 👤 H Langlie
- 👤 A Berg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:23
CPC Classifications
H; H01; H01B; H01B17/00; H01B17/14; H01B17/145; Y; Y10; Y10T; Y10T24/00; Y10T24/34; Y10T24/3427; Y10T24/39; Y10T24/3916; Y10T403/00; Y10T403/71; Y10T403/7194
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
132 words
An electric fence insulator comprising dielectric body means adapted to be attached to a fence post, a pair of integral dielectric hook-shaped jaw members projecting generally horizontally from said body means at one elevation for receiving a fence wire therein, the forward ends of said jaw members sloping in one direction, and an intermediate resilient tongue member of plastic material projecting horizontally from said body means at a different elevation from said jaw members for retaining said wire in said jaw members, the forward end of said tongue member sloping in an opposite direction to the one direction in which the forward ends of said jaw members slope to form a dog portion, said tongue member being vertically thinner between said dog portion and the end thereof connected to said body means.
Claim 2
Dependent Claim
132 words
An electric fence insulator comprising dielectric body means adapted to be attached to a fence post, a pair of integral dielectric hook-shaped jaw members projecting generally horizontally from said body means at one elevation for receiving a fence wire therein, the forward ends of said jaw members sloping in one direction, and an intermediate resilient tongue member of plastic material projecting horizontally from said body means at a different elevation from said jaw members for retaining said wire in said jaw members, the forward end of said tongue member sloping in an opposite direction to the one direction in which the forward ends of said jaw members slope to form a dog portion, said tongue member being vertically thinner between said dog portion and the end thereof connected to said body means.
Claim 3
Dependent Claim
24 words
An electric fence insulator in accordance with claim 1 in which said tongue member projects farther from said body means than said jaw members.
Claim 4
Dependent Claim
145 words
An electric fence insulator in accordance with claim 1 in which said one elevation is below said different elevation and said jaw members are provided with horizontally aligned upwardly facing notches between said body means and their said sloping ends, said sloping ends sloping upwardly to form the upper edges of said upwardly facing notches, and the dog portion of said tongue member being horizontally aligned with said upper edges and said tongue member having an elongated shank curving upwardly to cause said tongue member to be vertically thinner between said dog portion and the end thereof connected to said body means, thereby rendering said tongue member sufficiently resilient so that the sloping end of said tongue member which is normally at said different elevation can be cammed upwardly by the fence wire to permit the reception thereof in the notches of said jaw members.
Claim 5
Dependent Claim
55 words
An electric fence insulator in accordance with claim 1 in which said body means includes a vertical panel of plastic material having an upwardly projecting marginal portion, said tongue member being integral with said upwardly extending marginal portion, said jaw members projecting forwardly from said panel, said one elevation being lower than said different elevation.
Claim 6
Dependent Claim
23 words
An electric fence insulator in accordance with claim 4 in which said body means includes additional panels extending rearwardly from said vertical panel.
Claim 7
Dependent Claim
28 words
An electric fence insulator in accordance with claim 5 in which said additional panels include a pair of top panels inclining upwardly and rearwardly from said vertical panel.
Claim 8
Dependent Claim
36 words
An electric fence insulator in accordance with claim 6 in which the adjacent edges of said top panels form a peak or ridge inclining rearwardly in a generally fore and aft alignment with said tongue member.
Claim 9
Dependent Claim
27 words
An electric fence insulator in accordance with claim 7 in which said additional panels further include a pair of said panels extending rearwardly from said vertical panel.
Claim 10
Dependent Claim
42 words
An electric fence insulator in accordance with claim 8 in which said side panels have their forward edges in general alignMent with said pair of jaw members and their rear edges spaced farther apart to provide a pair of rearwardly diverging panels.
Claim 11
Dependent Claim
32 words
An electric fence insulator in accordance with claim 9 in which the upper edges of said diverging side panels are joined to the edges of said top panels remote from said peak.
Claim 12
Dependent Claim
45 words
An electric fence insulator in accordance with claim 10 including a dielectric vertical rear wall joined to the rear edges of said top panels and to the rear edges of said side panels, said rear wall extending above the rear edges of said top panels.
Claim 13
Dependent Claim
28 words
An electric fence insulator in accordance with claim 11 in which said vertical wall includes a pair of panels angling rearwardly from the rear end of said peak.
Claim 14
Dependent Claim
44 words
An electric fence insulator in accordance with claim 11 including a threaded barrel projecting rearwardly from said rear wall at an elevation beneath the upper edge of said rear wall, said barrel having a vertical slot therein for the accomodation of the fence post.
Claim 15
Dependent Claim
38 words
An electric fence insulator in accordance with claim 13 in which the forward end of said slot tapers toward said wall so that said rear wall is spaced forwardly from a fence post having a circular cross section.
Claim 16
Dependent Claim
32 words
An electric fence insulator in accordance with claim 14 including a nut threadedly carried on said barrel for engaging said post and pulling the tapered ends of said slot against said post.
Claim 17
Dependent Claim
160 words
An electric fence insulator of plastic material comprising a relatively thin vertical panel, integral body means extending rearwardly from the lower portion of the rear side of said vertical panel so as to provide said vertical panel with an upstanding marginal portion extending above said body means, a resilient tongue member projecting forwardly from the front side of said marginal portion, and a pair of hook-shaped jaw members projecting forwardly from the lower portion of the front side of said vertical panel, said jaw members being substantially at the said elevation as the rearwardly projecting body means, said tongue member having a downwardly sloping surface extending from its foremost edge in the direction of said vertical panel and said jaw members having surfaces sloping upwardly toward said vertical panel to form a notch with the sloping surface on said tongue member so that a wire can be forced into said notch to cause said tongue member to be flexed upwardly.
Claim 18
Dependent Claim
160 words
An electric fence insulator of plastic material comprising a relatively thin vertical panel, integral body means extending rearwardly from the lower portion of the rear side of said vertical panel so as to provide said vertical panel with an upstanding marginal portion extending above said body means, a resilient tongue member projecting forwardly from the front side of said marginal portion, and a pair of hook-shaped jaw members projecting forwardly from the lower portion of the front side of said vertical panel, said jaw members being substantially at the said elevation as the rearwardly projecting body means, said tongue member having a downwardly sloping surface extending from its foremost edge in the direction of said vertical panel and said jaw members having surfaces sloping upwardly toward said vertical panel to form a notch with the sloping surface on said tongue member so that a wire can be forced into said notch to cause said tongue member to be flexed upwardly.
Claim 19
Dependent Claim
154 words
An electric fence insulator in accordance with claim 16 in which the integrally connected end of said tongue member extends vertically throughout the height of said marginal portion, said tongue member curving upwardly away from said connected portion and then downwardly to form a downwardly facing notch, said tongue member having a dog portion between said downwardly facing notch and said downwardly sloping surface, and said jaw members having connected portions having a height corresponding to the height of said rearwardly projecting body means, said notches curving downwardly from the upper edge of the connected portion and then curving fowardly and upwardly to said upwardly sloping surfaces on the jaw members to provide upper edges which are in horizontal alignment with said dog portion and over which the wire rides when a wire causes said tongue member to be flexed upwardly, said upward flexing being caused by the wire camming against said dog portion.
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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) | 1976-07-30 | 1977-01-29 | 1977-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-30 | 1981-01-29 | 1981-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-30 | 1985-01-29 | 1985-07-31 | $7700.00 | Window Closed / Lapsed |