US3747148A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Folding boom assembly
Assignee: HITCHCOCK Inc
•
Filing: 1971-08-24
•
Granted: 1973-07-24
•
Expires: 1991-08-24
Abstract
Abstract A folding boom assembly having three articulately connected boom sections that are movable from a generally horizontal, aligned position to a generally upright, side-by-side position. The adjacent ends of the boom sections are pivotally connected together. A power transmitting mechanism having a first elongated flexible member connects the first boom section with the second boom section and a second elongated member connects the first boom section with the third boom section. A hydraulic motor operates with the power transmitting mechanism to control the folding and unfolding of the boom sections of the boom assembly.
Inventors
- 👤 K Hitchcock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:28
CPC Classifications
F; F16; F16H; F16H19/00; F16H19/02; F16H19/06; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18888; Y10T74/18912
Claims Analysis
Total Claims: 33
Claim 1
Independent Claim
277 words
A folding boom assembly mountable on a support comprising: a first boom section having a first end and second end; means for pivotally mounting the first end of the first end of the first boom section to said support for pivotal movement of said first boom section from a generally horizontal position to a generally upright position; expandable means connected to the first boom section to control the pivoting of the first boom section; a second boom section having a first end and second end; means pivotally connecting the first end of the second boom section with the second end of the first boom section; a third boom section having a first end and second end; means pivotally connecting the first end of the third boom section with the second end of the second boom section; power transmitting mechanism coupling the boom sections to fold the second and third boom sections adjacent the first boom section in response to movement of the first boom section by the expandable means to its generally upright position, said power transmitting mechanism including an elongated first member having a first portion attached to a fixed member and a second portion attached to a member fixed to the first end of the second boom section, and an elongated second member having a first portion attached to the second end of the first boom section and the first end of the third boom section, said second member being a chain trained over a first gear secured to a shaft attached to the second end of the first boom section and a second gear attached to the first end of the third boom section.
Claim 2
Dependent Claim
277 words
A folding boom assembly mountable on a support comprising: a first boom section having a first end and second end; means for pivotally mounting the first end of the first end of the first boom section to said support for pivotal movement of said first boom section from a generally horizontal position to a generally upright position; expandable means connected to the first boom section to control the pivoting of the first boom section; a second boom section having a first end and second end; means pivotally connecting the first end of the second boom section with the second end of the first boom section; a third boom section having a first end and second end; means pivotally connecting the first end of the third boom section with the second end of the second boom section; power transmitting mechanism coupling the boom sections to fold the second and third boom sections adjacent the first boom section in response to movement of the first boom section by the expandable means to its generally upright position, said power transmitting mechanism including an elongated first member having a first portion attached to a fixed member and a second portion attached to a member fixed to the first end of the second boom section, and an elongated second member having a first portion attached to the second end of the first boom section and the first end of the third boom section, said second member being a chain trained over a first gear secured to a shaft attached to the second end of the first boom section and a second gear attached to the first end of the third boom section.
Claim 3
Dependent Claim
32 words
The folding boom assembly of claim 1 wherein: said first boom section has a pair of elongated side rails and a transverse rod secured to the outer end of the side rails.
Claim 4
Dependent Claim
40 words
The folding boom assembly of claim 2 wherein: the second boom section has a pair of elongated side rails, said side rails of the second boom section being secured to means for pivotally mounting the side rails to the rod.
Claim 5
Dependent Claim
35 words
The folding boom assembly of claim 1 wherein: the third boom section comprises an elongated linear bar and means pivotally mounting one end of the bar to the second end of the second boom section.
Claim 6
Dependent Claim
34 words
The folding boom assembly of claim 4 wherein: the second boom section has a transverse rod at the second end thereof, said means of the third boom section is pivotally mounted on said rod.
Claim 7
Dependent Claim
18 words
The folding boom assembly of claim 1 wherein: said expandable means comprises an expandable and contractible hydraulic cylinder.
Claim 8
Dependent Claim
22 words
The folding boom assembly of claim 1 wherein: the elongated first member is a chain and the fixed member is a gear.
Claim 9
Dependent Claim
24 words
The folding boom assembly of claim 1 wherein: the fixed member is attached to the means mounting the first boom section to the support.
Claim 10
Dependent Claim
39 words
The folding boom assembly of claim 1 wherein: the power transmitting mechanism includes an elongated member having a first portion attached to a fixed member and a second portion attached to a member fixed to the second boom section.
Claim 11
Dependent Claim
24 words
The folding boom assembly of claim 9 wherein: the fixed member is attached to the means mounting the first boom section to the support.
Claim 12
Dependent Claim
27 words
The folding boom assembly of claim 1 wherein: the mounting means for attaching the first boom section to the support includes means connected to the expandable means.
Claim 13
Dependent Claim
18 words
The folding boom assembly of claim 1 including: ground engaging wheel means mounted on the third boom section.
Claim 14
Dependent Claim
247 words
A folding boom assembly mountable on a support comprising: a first boom section having a first end and a second end; means for pivotally mounting the first end of the first boom section to said support for pivOtal movement of said first boom section from a generally horizontal position to a generally upright position; expandable means connected to the first boom section to control the pivoting of the first boom section; a second boom section having a first end and a second end and a transverse rod secured to the second end thereof; means pivotally connecting the first end of the second boom section with the second end of the first boom section; a third boom section having a first end and a second end; means pivotally connecting the first end of the third boom section to the transverse rod of the second boom section; and power transmitting means coupling the boom sections to fold the second and third boom sections adjacent the first boom section in response to movement of the first boom section by the expandable means to its generally upright position, said power transmitting means including an elongated chain having a first portion attached to a fixed gear and a second portion attached to a member fixed to the first end of the second boom section, and an elongated second member having a first portion attached to the second end of the first boom section and the first end of the third boom section.
Claim 15
Dependent Claim
247 words
A folding boom assembly mountable on a support comprising: a first boom section having a first end and a second end; means for pivotally mounting the first end of the first boom section to said support for pivOtal movement of said first boom section from a generally horizontal position to a generally upright position; expandable means connected to the first boom section to control the pivoting of the first boom section; a second boom section having a first end and a second end and a transverse rod secured to the second end thereof; means pivotally connecting the first end of the second boom section with the second end of the first boom section; a third boom section having a first end and a second end; means pivotally connecting the first end of the third boom section to the transverse rod of the second boom section; and power transmitting means coupling the boom sections to fold the second and third boom sections adjacent the first boom section in response to movement of the first boom section by the expandable means to its generally upright position, said power transmitting means including an elongated chain having a first portion attached to a fixed gear and a second portion attached to a member fixed to the first end of the second boom section, and an elongated second member having a first portion attached to the second end of the first boom section and the first end of the third boom section.
Claim 16
Dependent Claim
32 words
The folding boom assembly of claim 13 wherein: said first boom section has a pair of elongated side rails and a transverse rod secured to the outer end of the side rails.
Claim 17
Dependent Claim
40 words
The folding boom assembly of claim 14 wherein: the second boom section has a pair of elongated side rails, said side rails of the second boom section being secured to means for pivotally mounting the side rails to the rod.
Claim 18
Dependent Claim
18 words
The folding boom assembly of claim 13 wherein: said power means comprises an expandable and contractible hydraulic cylinder.
Claim 19
Dependent Claim
48 words
The folding boom assembly of claim 13 wherein: the elongated second member is a chain trained over a first gear secured to a shaft attached to the second end of the first boom section and a second gear attached to the first end of the third boom section.
Claim 20
Dependent Claim
24 words
The folding boom assembly of claim 13 wherein: the fixed gear is attached to the means mounting the first boom section to the support.
Claim 21
Dependent Claim
227 words
A folding boom assembly mountable on a support comprising: a first boom section having a first end and second end; first means for pivotally mounting the first end of the first boom section to said support for pivotal movement of said first boom section from a generally horizontal position to a generally upright position; power means connected to the first boom section to control the pivotal movement of the first boom section between the horizontal position and upright position; a second boom section having a first end and second end and a transverse rod at the second end thereof; second means pivotally connecting the first end of the second boom section with the second end of the first boom section; a third boom section comprising an elongated linear bar having a first end and second end; third means pivotally connecting the one end of the bar with the second end of the second boom section, said third means being pivotally mounted on said transverse rod; and power transmitting means connected to the second means, third means, and a fixed means for controlling the positions of the second and third boom sections, said power transmitting means operable to fold the second and third boom sections adjacent the first boom section in response to movement of the first boom section by the power means to its generally upright position.
Claim 22
Dependent Claim
227 words
A folding boom assembly mountable on a support comprising: a first boom section having a first end and second end; first means for pivotally mounting the first end of the first boom section to said support for pivotal movement of said first boom section from a generally horizontal position to a generally upright position; power means connected to the first boom section to control the pivotal movement of the first boom section between the horizontal position and upright position; a second boom section having a first end and second end and a transverse rod at the second end thereof; second means pivotally connecting the first end of the second boom section with the second end of the first boom section; a third boom section comprising an elongated linear bar having a first end and second end; third means pivotally connecting the one end of the bar with the second end of the second boom section, said third means being pivotally mounted on said transverse rod; and power transmitting means connected to the second means, third means, and a fixed means for controlling the positions of the second and third boom sections, said power transmitting means operable to fold the second and third boom sections adjacent the first boom section in response to movement of the first boom section by the power means to its generally upright position.
Claim 23
Dependent Claim
18 words
The folding boom assembly of claim 19 wherein: said power means comprises an expandable and contractible hydraulic cylinder.
Claim 24
Dependent Claim
72 words
The folding boom assembly of claim 19 wherein: the power transmitting means includes an elongated first member having a first portion attached to a fixed member and a second portion attached to a member fixed to the first end of the second boom section, and an elongated second member having a first portion attached to the second end of the first boom section and the first end of the third boom secTion.
Claim 25
Dependent Claim
48 words
The folding boom assembly of claim 21 wherein: the elongated second member is a chain trained over a first gear secured to a shaft attached to the second end of the first boom section and a second gear attached to the first end of the third boom section.
Claim 26
Dependent Claim
39 words
The folding boom assembly of claim 19 wherein: the power transmitting means includes an elongated member having a first portion attached to a fixed member and a second portion attached to a member fixed to the second boom section.
Claim 27
Dependent Claim
27 words
The folding boom assembly of claim 19 wherein: the mounting means for attaching the first boom section to the support includes means connected to the power means.
Claim 28
Dependent Claim
216 words
A folding boom assembly mountable on a support comprising: a first boom section having a first end and second end; first means for pivotally mounting the first end of the first boom section to said support for pivotal movement of said first boom section from a generally horizontal position to a generally upright position; power means connected to the first boom section to control the pivotal movement of the first boom section between the horizontal position and upright position; a second boom section having a first end and second end; second means pivotally connecting the first end of the second boom section with the second end of the first boom section; a third boom section having a first end and second end; third means pivotally connecting the first end of the third boom section with the second end of the second boom section; and power transmitting means connected to the second means, third means, and a fixed means for controlling the positions of the second and third boom sections, said power transmitting means operable to fold the second and third boom sections adjacent the first boom section in response to movement of the first boom section by the power means to its generally upright position; and ground engaging wheel means mounted on the third boom section.
Claim 29
Dependent Claim
216 words
A folding boom assembly mountable on a support comprising: a first boom section having a first end and second end; first means for pivotally mounting the first end of the first boom section to said support for pivotal movement of said first boom section from a generally horizontal position to a generally upright position; power means connected to the first boom section to control the pivotal movement of the first boom section between the horizontal position and upright position; a second boom section having a first end and second end; second means pivotally connecting the first end of the second boom section with the second end of the first boom section; a third boom section having a first end and second end; third means pivotally connecting the first end of the third boom section with the second end of the second boom section; and power transmitting means connected to the second means, third means, and a fixed means for controlling the positions of the second and third boom sections, said power transmitting means operable to fold the second and third boom sections adjacent the first boom section in response to movement of the first boom section by the power means to its generally upright position; and ground engaging wheel means mounted on the third boom section.
Claim 30
Dependent Claim
32 words
The folding boom assembly of claim 25 wherein: said first boom section has a pair of elongated side rails and a transverse rod secured at the outer end of the side rails.
Claim 31
Dependent Claim
40 words
The folding boom assembly of claim 26 wherein: the second boom section has a pair of elongated side rails, said side rails of the second boom section being secured to means for pivotally mounting the side rails to the rod.
Claim 32
Dependent Claim
35 words
The folding boom assembly of claim 25 wherein: the third boom section comprises an elongated linear bar and means pivotally mounting one end of the bar to the second end of the second boom section.
Claim 33
Dependent Claim
71 words
The folding boom assembly of claim 25 wherein: the power transmitting means includes an elongated first member having a first portion attached to a fixed member and a second portion attached to a member fixed to the first end of the second boom section, and an elongated second member having a first portion attached to the second end of the first boom section and first end of the third boom section.
References Cited (Backward Citations)
US2175282A
Cited
US2828679A
Cited
US3072200A
Cited
US3224528A
Cited
US3411606A
Cited
US3414136A
Cited
US3589134A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-23 | 1977-01-22 | 1977-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-23 | 1981-01-22 | 1981-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-23 | 1985-01-22 | 1985-07-24 | $7700.00 | Window Closed / Lapsed |