Patent US4266344A successfully refreshed from Google Patents.
US4266344A
Expired / Lapsed
US
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Dipstick alignment guide
Assignee: Van Products Co
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Filing: 1979-09-18
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Granted: 1981-05-12
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Expires: 1999-09-18
Abstract
Abstract A dipstick assembly including an alignment guide comprising a fluid level indicating instrument having a rigid arcuate portion and an access passageway having a rigid arcuate portion of the same arcuate contour as the arcuate portion of the fluid level indicating instrument for preventing the rotation of the fluid level indicating instrument when it is received within the access passageway.
Inventors
- 👤 Mason E. Richardson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:53
CPC Classifications
G; G01; G01F; G01F23/00; G01F23/04
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
154 words
A dipstick assembly of the type used for measuring the fluid level within a chamber, said dipstick assembly comprising: an insertion means for indicating the fluid level within a chamber, access means connected to said chamber, said insertion means including a rigid arcuate body portion and a flexible elongated fluid level indicating means connected to said insertion means and extending outwardly therefrom, said access means receiving said insertion means and said indicating means, said access means including a rigid arcuate portion of substantially the same arcuate contour as said rigid arcuate portion of said insertion means, said access means and said body portion of said insertion means cooperating to limit insertion of said insertion means and to prevent excessive relative rotation of said insertion means when received in said access means whereby said fluid level indicating means will be properly oriented so as to accurately indicate the level of the fluid within said chamber.
Claim 2
Dependent Claim
154 words
A dipstick assembly of the type used for measuring the fluid level within a chamber, said dipstick assembly comprising: an insertion means for indicating the fluid level within a chamber, access means connected to said chamber, said insertion means including a rigid arcuate body portion and a flexible elongated fluid level indicating means connected to said insertion means and extending outwardly therefrom, said access means receiving said insertion means and said indicating means, said access means including a rigid arcuate portion of substantially the same arcuate contour as said rigid arcuate portion of said insertion means, said access means and said body portion of said insertion means cooperating to limit insertion of said insertion means and to prevent excessive relative rotation of said insertion means when received in said access means whereby said fluid level indicating means will be properly oriented so as to accurately indicate the level of the fluid within said chamber.
Claim 3
Dependent Claim
28 words
An assembly as set forth in claim 1 wherein said insertion means includes a handle member as a means for withdrawing said insertion means from said access means.
Claim 4
Dependent Claim
20 words
An assembly as set forth in claim 2 wherein said handle member is integrally formed with said arcuate body portion.
Claim 5
Dependent Claim
23 words
An assembly as set forth in claim 2 wherein said insertion means includes a fluid level indicating member attached to said handle member.
Claim 6
Dependent Claim
16 words
An assembly as set forth in claim 4 wherein said access means is a tubular member.
Claim 7
Dependent Claim
42 words
An assembly as set forth in claim 5 wherein said handle member includes a capping means for the stabilization of said insertion means within said access means, said capping means also limiting the insertion of said handle member into said access means.
Claim 8
Dependent Claim
21 words
An assembly as set forth in claim 6 wherein said handle member includes an arcuate end portion and a straight portion.
Claim 9
Dependent Claim
25 words
An assembly as set forth in claim 7 wherein said handle member includes a first annular rib encircling said straight portion of said handle member.
Claim 10
Dependent Claim
46 words
An assembly as set forth in claim 8 wherein the upper surface of said capping means abuts said annular rib, said handle member including a second annular rib below said capping means resulting in a mechanical attachment for securing said capping means to said handle member.
Claim 11
Dependent Claim
47 words
An assembly as set forth in claim 9 wherein said capping means includes a skirt portion having an inner diameter slightly greater than the outer diameter of said tubular member of said access means thereby establishing a close fitting engagement between said insertion means and access means.
Claim 12
Dependent Claim
20 words
An assembly as set forth in claim 10 wherein said fluid level indicating member is staked to said handle member.
Claim 13
Dependent Claim
25 words
An assembly as set forth in claim 11 wherein said fluid level indicating member includes markings for accurately indicating the fluid level within a chamber.
Claim 14
Dependent Claim
23 words
An assembly as set forth in claim 1 wherein said indicating means comprises an elongated blade member secured to said arcuate body 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) | 1984-05-11 | 1984-11-10 | 1985-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-05-11 | 1988-11-10 | 1989-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-05-11 | 1992-11-10 | 1993-05-12 | $7700.00 | Window Closed / Lapsed |