Patent US3837753A successfully refreshed from Google Patents.
US3837753A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Longitudinally adjustable guide rod
Assignee: Individual
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Filing: 1973-02-14
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Granted: 1974-09-24
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Expires: 1993-02-14
Abstract
Abstract A guide rod particularly for connecting parts of agricultural implements comprises first and second telescopically interengageable rod portions each having an outer end with an eyelet or similar means for securing it to an implement part and each having an inner end which is interengaged with the respective inner end of the other rod portion. One of the rod portions carries a rotatable lock nut which has a plurality of circumferentially extending and circumferentially spaced and axially extending rows of projecting cams which engage in recesses between the cams of similar rows arranged on the other rod portion. The parts are locked together when the projecting cams of the nut engaged behind the cams of the other rod portion and spring biasing means is provided to urge the nut into a locking position. The parts may be disengaged by rotating the lock nut against the biasing spring to release them.
Inventors
- 👤 H Weiste
- 👤 F Schumacher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:28
CPC Classifications
F; F16; F16B; F16B37/00; F16B37/08; F16B37/0807; F16B37/085; A; A01; A01B; A01B59/00; A01B59/002; A01B59/004; F16C; F16C7/00; F16C7/06; F16C2310/00; Y; Y10; Y10T; Y10T403/00; Y10T403/29; Y10T403/291; Y10T403/60; Y10T403/602; Y10T74/00; Y10T74/20; Y10T74/20576; Y10T74/20582; Y10T74/206; Y10T74/20636
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
145 words
A guide rod particularly for connecting parts of agricultural implements, comprising first and second telescopically interengageable rod portions each having an outer end with means for securing it to an implement part, and each having an inner end interengaged with the respective inner end of the other rod portion, a rotatable lock nut carried on said first rod portion, said first rod portion rotatable lock nut and said second rod portion having a plurality of circumferentially extending and circumferentially spaced and axially extending rows of projecting cams said cams of one of said rod portions being engageable behind the cams of the other of said rod portions to lock said rod portions together, said lock nut being rotatable with its associated projecting cams to position said cams between rows of cams of the other of said parts to adjust said first and second parts axially.
Claim 2
Dependent Claim
145 words
A guide rod particularly for connecting parts of agricultural implements, comprising first and second telescopically interengageable rod portions each having an outer end with means for securing it to an implement part, and each having an inner end interengaged with the respective inner end of the other rod portion, a rotatable lock nut carried on said first rod portion, said first rod portion rotatable lock nut and said second rod portion having a plurality of circumferentially extending and circumferentially spaced and axially extending rows of projecting cams said cams of one of said rod portions being engageable behind the cams of the other of said rod portions to lock said rod portions together, said lock nut being rotatable with its associated projecting cams to position said cams between rows of cams of the other of said parts to adjust said first and second parts axially.
Claim 3
Dependent Claim
36 words
A guide rod according to claim 1, including means biasing said lock nut to a position in which said projecting ring cams of said lock nut engage behind the projecting ring cams of said second part.
Claim 4
Dependent Claim
25 words
A guide rod according to claim 1, including an operating lever connected to said lock nut for rotating said lock nut on said rod portion.
Claim 5
Dependent Claim
32 words
A guide rod according to claIm 1, wherein said means on said first and second rod portions for securing it to an implement part includes an eyelet on each associated outer end.
Claim 6
Dependent Claim
50 words
A guide rod according to claim 1, wherein said means for securing said first and second rod portions to an implement part includes an eyelet threadably carried at the outer end of each of said parts, said lock nut not being threaded to said first part for axial adjustment therealong.
Claim 7
Dependent Claim
33 words
A guide rod according to claim 5, including a biasing spring biasing said lock nut into a position in which said projecting cams lock behind the projecting cams of said first rod portion.
Claim 8
Dependent Claim
131 words
A guide rod particularly for connecting parts of agricultural implements, comprising first and second telescopically interengageable rod portions each having an outer end with means for securing it to an implement part and each having an inner end which is interengaged with the respective inner end of the other rod portion, a rotatable lock nut carried on said first rod portion, a projecting cam carried on said lock nut and on said second rod portion, said lock nut projecting cam being rotatable behind the projecting cam of the second rod portion to interengage said second rod portion with said projecting cam and being rotatable with it to move its projecting cam out of alignment with the projecting cam on said second rod portion to permit axial adjustment of said rod portions.
Claim 9
Dependent Claim
131 words
A guide rod particularly for connecting parts of agricultural implements, comprising first and second telescopically interengageable rod portions each having an outer end with means for securing it to an implement part and each having an inner end which is interengaged with the respective inner end of the other rod portion, a rotatable lock nut carried on said first rod portion, a projecting cam carried on said lock nut and on said second rod portion, said lock nut projecting cam being rotatable behind the projecting cam of the second rod portion to interengage said second rod portion with said projecting cam and being rotatable with it to move its projecting cam out of alignment with the projecting cam on said second rod portion to permit axial adjustment of said rod portions.
Claim 10
Dependent Claim
18 words
A guide rod according to claim 7, including spring means biasing said lock nut to a locked position.
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) | 1977-09-23 | 1978-03-25 | 1978-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-23 | 1982-03-25 | 1982-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-23 | 1986-03-25 | 1986-09-24 | $7700.00 | Window Closed / Lapsed |