US4178011A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tapered fit coupling method and apparatus
Assignee: Individual
•
Filing: 1977-02-22
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Granted: 1979-12-11
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Expires: 1997-02-22
Abstract
Abstract This is a unique tapered fit coupling arrangement for coupling a load to a power means, such as a trailer to a self propelled vehicle, wherein movement is allowed in all directions for coupling to allow for ease of hook-up, and wherein the device is characterized by a tapered female member with a corresponding tapered male member which can be inserted and drawn into firm and complete tapered fit to completely engage the power means and the load in a safe and compact relationship.
Inventors
- 👤 John G. Kirsch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:02
CPC Classifications
B; B60; B60D; B60D1/00; B60D1/24; B60D1/36; B60D1/40; B60D1/38
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
111 words
Apparatus for coupling a load to a power unit comprising: (1) A first tapered element containing a drift pin slot connected to the power unit; (2) A second tapered element containing a drift pin slot, partially alignable with the drift pin slot in the first tapered element so that a drift pin may be inserted through the two partially aligning drift pin slots for purpose of separating the two tapered elements when they are in contact with one another, connected to the load; (3) A misaligning pilot shaft between the two tapered elements; and (4) Means upon the misaligning shaft to draw the two tapered elements into intimate and rigid contact.
Claim 2
Dependent Claim
111 words
Apparatus for coupling a load to a power unit comprising: (1) A first tapered element containing a drift pin slot connected to the power unit; (2) A second tapered element containing a drift pin slot, partially alignable with the drift pin slot in the first tapered element so that a drift pin may be inserted through the two partially aligning drift pin slots for purpose of separating the two tapered elements when they are in contact with one another, connected to the load; (3) A misaligning pilot shaft between the two tapered elements; and (4) Means upon the misaligning shaft to draw the two tapered elements into intimate and rigid contact.
Claim 3
Independent Claim
115 words
The method of coupling a power unit to a towed unit comprising: (1) equipping the powered unit with a depending element comprising in part a tapered device; (2) equipping the towed unit with a depending element comprising in part a tapered device suitable to engage the tapered device on the power unit; (3) providing a pilot shaft connected to one of said tapered devices in such manner as to be insertable through the other tapered device; (4) joining the two tapered devices in contact with one another with the same pilot shaft connected to one and extending through the other of said tapered devices; and (5) fastening said pilot shaft to said other tapered device.
Claim 4
Independent Claim
115 words
The method of coupling a power unit to a towed unit comprising: (1) equipping the powered unit with a depending element comprising in part a tapered device; (2) equipping the towed unit with a depending element comprising in part a tapered device suitable to engage the tapered device on the power unit; (3) providing a pilot shaft connected to one of said tapered devices in such manner as to be insertable through the other tapered device; (4) joining the two tapered devices in contact with one another with the same pilot shaft connected to one and extending through the other of said tapered devices; and (5) fastening said pilot shaft to said other tapered device.
Claim 5
Dependent Claim
23 words
The method of claim 2 wherein each of the tapered elements is in the shape of a cone, one fitting into the other.
Claim 6
Dependent Claim
18 words
The method of claim 2 wherein each of the tapered elements is in the form of a "V".
References Cited (Backward Citations)
US1730077A
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US2150010A
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US2170983A
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US2753192A
Cited
US3761113A
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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) | 1982-12-10 | 1983-06-11 | 1983-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-12-10 | 1987-06-11 | 1987-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-12-10 | 1991-06-11 | 1991-12-11 | $7700.00 | Window Closed / Lapsed |