Patent US3973354A successfully refreshed from Google Patents.
US3973354A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric worm collecting apparatus
Assignee: Individual
•
Filing: 1975-06-23
•
Granted: 1976-08-10
•
Expires: 1995-06-23
Abstract
Abstract An electric worm collecting apparatus comprises a partially insulated, electrically conducting rod having an uninsulated lower end portion adapted for inserting into the ground and having an upper portion formed at a right angle to the lower portion. Part of the upper portion is curved through 180° to provide a handle for inserting the lower end portion into the ground. A conductor, preferably having a polarized end plug, is provided for connecting an upper end of the rod to an A.C. voltage source. A normally off, momentary on switch is provided adjacent to the rod to energize the rod from the A.C. voltage source when the lower end is inserted in the ground, thereby causing a worm collecting current in the ground around the rod. A fuse is included in the conductor to provide current overload protection. A diode is provided to rectify the A.C. voltage to enhance the worm collecting effect by providing a pulsating but non-oscillating current. In a variation adapted for use with a D.C. voltage source, a pair of similar rods, maintained in mutual spaced relationship and in mutual electrical isolation by spacers is employed. The rods are provided with an electrical conductor terminating in a plug adapted to be plugged into an automobile-type cigarette lighter receptacle. A rod energizing switch is provided and D.C. voltage chopping means converts D.C. voltage received from the source into a pulsating voltage to enhance the worm collecting effect.
Inventors
- 👤 John Schommer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 09:58
CPC Classifications
A; A01; A01M; A01M29/00; A01M29/24; A01M19/00
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
120 words
An electric worm collecting apparatus, which comprises: a. an electrically conducting element, said element having a first portion adapted for inserting into the ground and having a second portion for receiving an electrical connection, b. insulating means for insulating portions of said element other than said first and second portions, and c. means adapted for connecting said second portion of said element to a voltage source, said means including means for converting voltage from a voltage source to a pulsating voltage of a single polarity whereby when said first portion of said element is inserted in the ground a pulsating, nonoscillating current is caused in the ground adjacent to said first portion to cause worms to come to the surface.
Claim 2
Dependent Claim
120 words
An electric worm collecting apparatus, which comprises: a. an electrically conducting element, said element having a first portion adapted for inserting into the ground and having a second portion for receiving an electrical connection, b. insulating means for insulating portions of said element other than said first and second portions, and c. means adapted for connecting said second portion of said element to a voltage source, said means including means for converting voltage from a voltage source to a pulsating voltage of a single polarity whereby when said first portion of said element is inserted in the ground a pulsating, nonoscillating current is caused in the ground adjacent to said first portion to cause worms to come to the surface.
Claim 3
Dependent Claim
38 words
The invention as claimed in claim 1, wherein said connecting means includes a normally of, momentary-on actuating switch, whereby said element is energized from said voltage source only when an activating portion of said switch is held depressed.
Claim 4
Dependent Claim
29 words
The invention as claimed in claim 1, wherein said connecting means includes a plug adapted for plugging into an A.C. voltage outlet and also includes a current limiting element.
Claim 5
Dependent Claim
50 words
The invention as claimed in claim 3, wherein said plug includes polarizing means whereby said plug may be plugged into an A.C. voltage source outlet only in an orientation to cause voltage from the voltage side of the A.C. source to be connected to said second portion of said element.
Claim 6
Dependent Claim
41 words
The invention as claimed in claim 3, wherein said plug has two unpolarized pins and said voltage converting means includes diodes connected in series with both of said pins and an electrical conductor connected to said diodes and to said element.
Claim 7
Dependent Claim
25 words
The invention as claimed in claim 1, wherein said voltage converting means includes a diode connected in series with said second portion of said element.
Claim 8
Dependent Claim
51 words
The invention as claimed in claim 1, including a second element similar to said first mentioned element, and means for maintaining said second and said first mentioned elements in mutual spaced relationship and in mutual electrical isolation, said connecting means being adapted for connecting said elements to a D.C. voltage source.
Claim 9
Dependent Claim
23 words
The invention as claimed in claim 7, wherein said connecting means includes a plug adapted for plugging into an automobile-type cigarette lighter receptacle.
Claim 10
Dependent Claim
17 words
The invention as claimed in claim 7, wherein said voltage converting means includes D.C. voltage chopping means.
Claim 11
Dependent Claim
160 words
An electric worm collecting apparatus, which comprises: a. an electrically conducting element said element comprising a rod formed to have a second portion substantially at right angles to a first portion thereof. said first portion having a lower end portion adapted for inserting into the ground, said second portion having an end portion adapted for receiving an electrical connection, b. insulating means for electrically insulating portions of said element other than said end portions thereof, and c. connecting means adapted for connecting said second end portion to an A.C. voltage outlet, said connecting means including a plug adapted to plug into an A.C. voltage source outlet and including diode means for rectifying an A.C. voltage received from an A.C. voltage source said connecting means further including switching means for causing energizing of said element from an A.C. voltage source when said lower end portion is inserted in the ground a pulsating, nonoscillating current is caused around said lower end portion.
Claim 12
Dependent Claim
160 words
An electric worm collecting apparatus, which comprises: a. an electrically conducting element said element comprising a rod formed to have a second portion substantially at right angles to a first portion thereof. said first portion having a lower end portion adapted for inserting into the ground, said second portion having an end portion adapted for receiving an electrical connection, b. insulating means for electrically insulating portions of said element other than said end portions thereof, and c. connecting means adapted for connecting said second end portion to an A.C. voltage outlet, said connecting means including a plug adapted to plug into an A.C. voltage source outlet and including diode means for rectifying an A.C. voltage received from an A.C. voltage source said connecting means further including switching means for causing energizing of said element from an A.C. voltage source when said lower end portion is inserted in the ground a pulsating, nonoscillating current is caused around said lower end portion.
Claim 13
Dependent Claim
23 words
The invention as claimed in claim 10, wherein said plug is polarized and is adapted for plugging into a polarized A.C. voltage outlet.
Claim 14
Dependent Claim
21 words
The invention as claimed in claim 10, wherein said connecting means includes a fuse means to limit current through said element.
Claim 15
Dependent Claim
32 words
The invention as claimed in claim 10, whereas portions of said second element portion are curved through approximately 180° to form a handle for pushing said lower end portion into the ground.
Claim 16
Dependent Claim
161 words
An electric worm collecting apparatus which comprises: a. a pair of electrically conducting elements, said elements comprising rods formed to have second portions substantially at right angles to first portions thereof, said first portions having first lower end portions adapted for inserting into the ground and having second end portions adapted for receiving an electrical connection. b. insulating means for electrically insulating said elements other than said end portions, c. means connected to said elements for maintaining said elements in mutual spaced relationship, and d. connecting means adapted for connecting said second end portions to a D.C. voltage source, said connecting means including switching means for causing energizing of said elements from the D.C. voltage source, said connecting means also including D.C. voltage chopping means for causing pulsating of voltage received from the D.C. voltage source to thereby cause a pulsating, nonoscillating current in the ground between said lower end portions when said lower end portions are inserted into the ground.
Claim 17
Dependent Claim
161 words
An electric worm collecting apparatus which comprises: a. a pair of electrically conducting elements, said elements comprising rods formed to have second portions substantially at right angles to first portions thereof, said first portions having first lower end portions adapted for inserting into the ground and having second end portions adapted for receiving an electrical connection. b. insulating means for electrically insulating said elements other than said end portions, c. means connected to said elements for maintaining said elements in mutual spaced relationship, and d. connecting means adapted for connecting said second end portions to a D.C. voltage source, said connecting means including switching means for causing energizing of said elements from the D.C. voltage source, said connecting means also including D.C. voltage chopping means for causing pulsating of voltage received from the D.C. voltage source to thereby cause a pulsating, nonoscillating current in the ground between said lower end portions when said lower end portions are inserted into the ground.
Claim 18
Dependent Claim
23 words
The invention as claimed in claim 14, wherein said connecting means includes a plug adapted for plugging into an automobile-type cigarette lighter receptacle.
Claim 19
Dependent Claim
34 words
The invention as claimed in claim 14, wherein said elements are formed to have said lower end portions spaced substantially farther apart than other portions of said elements when maintained in said spaced relationship.
References Cited (Backward Citations)
US1932237A
Cited
US2450597A
Cited
US2607164A
Cited
US2770075A
Cited
US3763593A
Cited
US3793770A
Cited
US3820279A
Cited
US3898756A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-08-10 | 1980-02-09 | 1980-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-08-10 | 1984-02-09 | 1984-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-08-10 | 1988-02-09 | 1988-08-10 | $7700.00 | Window Closed / Lapsed |