CA2549264A1 - Two stage grease gun - Google Patents
Two stage grease gun Download PDFInfo
- Publication number
- CA2549264A1 CA2549264A1 CA 2549264 CA2549264A CA2549264A1 CA 2549264 A1 CA2549264 A1 CA 2549264A1 CA 2549264 CA2549264 CA 2549264 CA 2549264 A CA2549264 A CA 2549264A CA 2549264 A1 CA2549264 A1 CA 2549264A1
- Authority
- CA
- Canada
- Prior art keywords
- plunger
- grease gun
- volume
- passageway
- extension
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N3/00—Devices for supplying lubricant by manual action
- F16N3/10—Devices for supplying lubricant by manual action delivering grease
- F16N3/12—Grease guns
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Coating Apparatus (AREA)
- Mechanical Engineering (AREA)
Abstract
A portable grease gun with a dual pressure output capability which can be selectively changed by the user with little effort. A larger diameter plunger is longitudinally coupled to an extension.
The larger diameter plunger and its extension are variable in length by manual rotation of the extension relative to the larger diameter plunger. The larger diameter plunger is slidable within a plunger retainer over a limited range and is not free to rotate within the plunger retainer. The larger diameter plunger and the plunger extension have aligned bores through them in which a smaller diameter plunger is slidable. The smaller diameter plunger moves when an actuating lever is operated to compress grease in the grease gun. The larger diameter plunger may be adjusted to remain static during operation of the actuating lever or it may be adjusted to move during all or pan of the compression stroke of the actuating lever.
The larger diameter plunger and its extension are variable in length by manual rotation of the extension relative to the larger diameter plunger. The larger diameter plunger is slidable within a plunger retainer over a limited range and is not free to rotate within the plunger retainer. The larger diameter plunger and the plunger extension have aligned bores through them in which a smaller diameter plunger is slidable. The smaller diameter plunger moves when an actuating lever is operated to compress grease in the grease gun. The larger diameter plunger may be adjusted to remain static during operation of the actuating lever or it may be adjusted to move during all or pan of the compression stroke of the actuating lever.
Claims (10)
1. A grease gun comprising a grease gun body having a passageway therethrough, an actuating lever pivotal upon the grease gun body, a first plunger longitudinally slidable within the passageway over a limited distance, the first plunger having a longitudinal passageway therethrough, a second plunger received in the longitudinal passageway of the first plunger and slidable therewithin, movement of the actuating lever from a retracted position to a partially closed position effects movement of the second plunger within the coaxial bore, movement of the actuating lever from the partially closed position to a closed position effects movement of the second plunger and the first plunger.
2. A manually operated portable grease gun comprising a grease gun body having a passageway therethrough terminating in an outlet body, a first larger diameter plunger slidable along the passageway, the first larger diameter plunger selectively variable in length, the first larger diameter plunger having a longitudinal bore therethrough, a second smaller diameter plunger slidable along the longitudinal bore of the first larger diameter plunger.
3. A grease gun comprising a grease gun body having a longitudinal bore therethrough, an actuating lever pivotal upon the grease gun body, the longitudinal bore of the grease gun body receiving a plunger assembly, the plunger assembly comprising a plunger retainer, the plunger retainer immoveable within the passageway of the grease gun body, the plunger retainer receiving a volume plunger within a longitudinal passageway therethrough, the plunger retainer preventing rotative movement of the volume plunger within the passageway of the grease gun body, the volume plunger selectively slidable along the passageway of the plunger retainer over a limited range, the volume plunger comprising an extension longitudinally attached thereto, the extension disposed within the passageway of the plunger retainer, the volume plunger of selectable length, the volume plunger comprising a longitudinal bore therethrough the extension having a passageway therethrough coaxial with the longitudinal bore of the volume plunger, the plunger having a coaxial passageway therethrough, a pressure plunger slidingly receivable within the longitudinal bore of the volume plunger, and within the passageway of the extension, a first spring urging the pressure plunger toward the actuating lever, a second spring urging the extension toward the actuating lever.
4. The grease gun of claim 3 wherein the actuating lever is actuated by manual operation.
5. The grease gun of claim 3 wherein the volume plunger is coaxial with the plunger retainer.
6. The grease gun of claim 3 wherein the plunger retainer comprises a pin receivable within a slot in the pressure plunger, the pin restricting rotational movement of the volume plunger relative to the plunger retainer.
7. The grease gun of claim 3 wherein the volume plunger is coaxial with the plunger retainer, the pressure plunger coaxial with the volume plunger.
8. The grease gun of claim 3 wherein the extension comprises a first end thereof, the volume plunger comprising a receiving end, the first end of the extension received in the receiving end of the volume plunger at a selected depth.
9. The grease gun of claim 8 wherein external threads upon the first end of the extension mate with internal threads within the receiving end of the volume plunger.
10. The manually operated grease gun of claim 3 wherein the actuating lever includes a push element, the push element abutting an outer end of the pressure plunger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2549264 CA2549264C (en) | 2006-06-01 | 2006-06-01 | Two stage grease gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2549264 CA2549264C (en) | 2006-06-01 | 2006-06-01 | Two stage grease gun |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2549264A1 true CA2549264A1 (en) | 2007-12-01 |
| CA2549264C CA2549264C (en) | 2012-07-24 |
Family
ID=38788238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2549264 Expired - Fee Related CA2549264C (en) | 2006-06-01 | 2006-06-01 | Two stage grease gun |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2549264C (en) |
-
2006
- 2006-06-01 CA CA 2549264 patent/CA2549264C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CA2549264C (en) | 2012-07-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20190603 |