Patent US3785225A successfully refreshed from Google Patents.
US3785225A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety device for removing radiator caps
Assignee: Individual
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Filing: 1972-05-25
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Granted: 1974-01-15
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Expires: 1992-05-25
Abstract
Abstract There is disclosed a radiator cap removing device which comprises a steam retainer chamber positionable over a radiator cap. The steam retainer chamber has an opening in the bottom which is at least as large as the neck of the radiator to which the radiator cap is attached but smaller then the greatest width of the radiator cap. The radiator cap projects though this opening. A shaft is slideably and rotatably positioned in the retainer chamber. This shaft includes a cap removal means secured at one end thereof within the retainer and a gripping means at the other end of the shaft outside of the retainer chamber. There is also disclosed a pressure release plate containing a number of orifices slideably positioned on the shaft above the cap removal means. When used to remove a radiator cap from a hot radiator, the device shields the person using the tool from being burned or scalded by steam or water emitting from the radiator and prevents water and the radiator cap from being blown back onto the engine or the person using the device.
Inventors
- 👤 J Mckenna
- 👤 R Harter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 15:52
CPC Classifications
B; B25; B25B; B25B27/00; B25B27/0035; B25B27/0042
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
125 words
A radiator cap removing device which comprises a steam retainer positionable over a radiator cap, said steam retainer having an opening in the bottom thereof which is at least as large as the neck of the radiator to which the radiator cap is attached but smaller then the greatest width of the radiator cap, a shaft slideably and rotatably positioned in said retainer, said shaft including a cap removal means secured at one end thereof within said retainer and a gripping means at the other end of said shaft outside of said retainer said retainer being vertically separable into two sections and includes means for releasably securing the two sections whereby said chamber may be positioned over said radiator cap by bringing together said sections.
Claim 2
Dependent Claim
125 words
A radiator cap removing device which comprises a steam retainer positionable over a radiator cap, said steam retainer having an opening in the bottom thereof which is at least as large as the neck of the radiator to which the radiator cap is attached but smaller then the greatest width of the radiator cap, a shaft slideably and rotatably positioned in said retainer, said shaft including a cap removal means secured at one end thereof within said retainer and a gripping means at the other end of said shaft outside of said retainer said retainer being vertically separable into two sections and includes means for releasably securing the two sections whereby said chamber may be positioned over said radiator cap by bringing together said sections.
Claim 3
Dependent Claim
32 words
A device as defined in claim 1 wherein a vertical edge of one of said sections is attached to a vertical edge of the other of said sections by a hinge means.
Claim 4
Dependent Claim
48 words
A device as defined in claim 2 wherein the bottom portion of each of said separable sections comprises an arcuate plate whereby when said sections are brought together to form said steam retainer chamber, said arcuate plates form An annular opening through which a radiator cap will project.
Claim 5
Dependent Claim
35 words
A device as defined in claim 3 wherein one of said separable sections contains an annular orifice in the side thereof, and means in communication with said orifice for directing steam away from said device.
Claim 6
Dependent Claim
63 words
A device as defined in claim 1 wherein each of said separable sections is semicylindrical in shape and one of said semicylindrical sections has a circular plate secured to the top edge thereof, the diameter of said circular plate being substantially the same as and not greater then the inner diameter of the cylindrical chamber formed when said semicylindrical sections are brought together.
Claim 7
Dependent Claim
39 words
A device as defined in claim 5 wherein the other of said semicylindrical sections has a arcuate flange secured to the top edge thereof which overlaps a portion of said circular plate when said semicylindrical sections are brought together.
Claim 8
Dependent Claim
23 words
A device as defined in claim 5 wherein said top plate has a collar in the middle thereof through which said shaft extends.
Claim 9
Dependent Claim
18 words
A device as defined in claim 5 comprising a pressure release plate slideably siutated on said shaft means.
Claim 10
Dependent Claim
35 words
A device as defined in claim 8 wherein said pressure release plate comprises a circular plate having a diameter approximately equal to the inner diameter of said chamber and containing a plurality of openings therein.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-01-14 | 1977-07-16 | 1978-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-14 | 1981-07-16 | 1982-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-14 | 1985-07-16 | 1986-01-15 | $7700.00 | Window Closed / Lapsed |