US3777853A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hose guide for lift truck
Assignee: AC MATERIAL HANDLING Corp 777 MANOR PARK DRIVE COLUMBUS OHIO 43228 A CORP OHIO
•
Filing: 1972-04-05
•
Granted: 1973-12-11
•
Expires: 1992-04-05
Abstract
Abstract A pair of hoses for conveying fluid from the lift truck to a jack on the carriage are trained over the lift chains connected to the carriage and are held in the place on the lift chains as the chains and hose pass over a pair of pulleys by rollers disposed above the hoses.
Inventors
- 👤 B Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:29
CPC Classifications
B; B66; B66F; B66F9/00; B66F9/06; B66F9/075; B66F9/20; B66F9/205; B66F9/08
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
112 words
In a lift truck having a carriage reciprocably mounted for raising and lowering on a pair of uprights by an extensible element of a lift jack, the combination comprising: a pulley rotatably mounted on said extensible element, a lift chain connected to said carriage and passing over said pulley, said chain including inter-connected links with spaced side bars, a hose in overlaying contact with said chain and disposed between said spaced side bars, and a guide roller pivotally mounted on said extensible element above said pulley and engageable with said hose to maintain the latter in its position between said side bars as said chain and hose pass together over said pulley.
Claim 2
Dependent Claim
112 words
In a lift truck having a carriage reciprocably mounted for raising and lowering on a pair of uprights by an extensible element of a lift jack, the combination comprising: a pulley rotatably mounted on said extensible element, a lift chain connected to said carriage and passing over said pulley, said chain including inter-connected links with spaced side bars, a hose in overlaying contact with said chain and disposed between said spaced side bars, and a guide roller pivotally mounted on said extensible element above said pulley and engageable with said hose to maintain the latter in its position between said side bars as said chain and hose pass together over said pulley.
Claim 3
Dependent Claim
19 words
The invention of claim 1 wherein said guide roller has a smooth annular groove in contact with said hose.
Claim 4
Dependent Claim
25 words
The invention of claim 2 wherein said roller has radially outwardly extending and axially spaced flange portions disposed, respectively, on opposite sides of said hose.
Claim 5
Dependent Claim
25 words
The invention of calim 1 wherein said roller has radially outwardly extending and axially spaced flange portions disposed, respectively, on opposite sides of said hose.
Claim 6
Dependent Claim
25 words
The invention of calim 1 wherein said roller has radially outwardly extending and axially spaced flange portions disposed, respectively, on opposite sides of said hose.
Claim 7
Dependent Claim
51 words
The invention of claim 1 and further comprising a second roller spaced circumferentially about said pulley from said first mentioned pulley and disposed above said pulley and engagable with said hose to maintain the latter in its position between said side bars as said chain and hose pass over said pulley.
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) | 1976-12-10 | 1977-06-11 | 1977-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-10 | 1981-06-11 | 1981-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-10 | 1985-06-11 | 1985-12-11 | $7700.00 | Window Closed / Lapsed |